Boone, Iowa Weather Conditions

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Current Conditions

  • 39°
  • Overcast
  • Wind: SSE 15 mph
  • Humidity: 100%
  • Visibility: 4.0 miles
  • Dew Point: 39°
  • Pressure: 29.65 in. 0
  • Heat Index: 31

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Next 12 Hours

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3  pm
Chance of Rain
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39°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Rain
  • High: 39 °
  • Low: 34 °
  • Rain
  • Tuesday
  • Chance of Snow
  • High: 36 °
  • Low: 34 °
  • Chance of Snow
  • Wednesday
  • Mostly Cloudy
  • High: 37 °
  • Low: 27 °
  • Mostly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 45 °
  • Low: 27 °
  • Partly Cloudy
  • Friday
  • Fog
  • High: 30 °
  • Low: 14 °
  • Fog

Forecast for Boone, Iowa

Updated: 3:00 AM CST on December 22, 2014

  • Monday

    Overcast with rain. High of 39F. Breezy. Winds from the SSE at 10 to 20 mph. Chance of rain 90%.

  • Monday Night

    Overcast with a chance of rain, then a chance of snow and a chance of rain after midnight. Fog overnight. Low of 34F. Winds from the South at 5 to 10 mph. Chance of precipitation 30% .

  • Tuesday

    Overcast with a chance of snow and a chance of rain. High of 36F. Winds from the NNE at 5 to 15 mph shifting to the NW in the afternoon. Chance of snow 30%.

  • Tuesday Night

    Overcast with a chance of snow. Low of 34F with a windchill as low as 25F. Breezy. Winds from the NW at 15 to 20 mph. Chance of snow 20%.

  • Wednesday

    Overcast. High of 37F with a windchill as low as 19F. Breezy. Winds from the NW at 15 to 20 mph.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 27F with a windchill as low as 19F. Winds from the West at 5 to 15 mph.

  • Thursday

    Partly cloudy in the morning, then overcast. High of 45F. Winds from the SSW at 10 to 15 mph.

  • Thursday Night

    Overcast. Fog overnight. Low of 27F with a windchill as low as 19F. Winds from the SSE at 10 to 15 mph.

  • Friday

    Overcast. Fog early. High of 30F with a windchill as low as 18F. Winds from the South at 10 to 15 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 14F with a windchill as low as 3F. Breezy. Winds from the WNW at 10 to 25 mph.

  • Saturday

    Partly cloudy. High of 28F with a windchill as low as -2F. Breezy. Winds from the NW at 15 to 20 mph.

  • Saturday Night

    Partly cloudy. Low of 16F. Winds from the WNW at 5 to 10 mph shifting to the SW after midnight.

  • Sunday

    Mostly cloudy. High of 28F with a windchill as low as 5F. Winds from the SSE at 10 to 15 mph.

  • Sunday Night

    Overcast with a chance of snow. Fog overnight. Low of 10F with a windchill as low as 1F. Winds from the SE at 10 to 15 mph. Chance of snow 20% with accumulations up to 1 in. possible.

  • Monday

    Partly cloudy. Fog early. High of 16F with a windchill as low as -2F. Breezy. Winds from the NNW at 10 to 20 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 5F with a windchill as low as -4F. Winds from the NW at 5 to 20 mph.

  • Tuesday

    Partly cloudy. Fog early. High of 21F with a windchill as low as -8F. Winds from the NW at 10 to 15 mph.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 3F with a windchill as low as -8F. Winds from the NW at 5 to 15 mph.

  • Wednesday

    Partly cloudy. Fog early. High of 10F with a windchill as low as -9F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 3F with a windchill as low as -6F. Winds from the WNW at 5 to 10 mph.

  • Thursday

    Partly cloudy. Fog early. High of 12F with a windchill as low as -8F. Winds from the West at 5 to 10 mph.

  • Thursday Night

    Clear. Fog overnight. Low of 3F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: MesoWest ONTAR1 IA US UPR, Ames, IA

Updated: 2:15 AM CST

Temperature: 38 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Maurer - GW Carver at 190th, Ames, IA

Updated: 3:50 AM CST

Temperature: 38.2 °F Dew Point: 37 °F Humidity: 96% Wind: SSE at 7.0 mph Pressure: 29.69 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Northridge, Ames, IA

Updated: 3:47 AM CST

Temperature: 39.7 °F Dew Point: 39 °F Humidity: 99% Wind: NNE at 5.8 mph Pressure: 29.63 in Hourly Precipitation: - Windchill: 36 °F Graphs

Location: MesoWest BEAVR1 IA US UPR, Beaver, IA

Updated: 1:45 AM CST

Temperature: 37 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: SE side of Madrid, IA, Madrid, IA

Updated: 3:51 AM CST

Temperature: 39.8 °F Dew Point: 39 °F Humidity: 97% Wind: SSE at 6.0 mph Pressure: 29.70 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Garden District, Ames, IA

Updated: 3:45 AM CST

Temperature: 39.2 °F Dew Point: 34 °F Humidity: 82% Wind: East at 2.2 mph Pressure: 29.40 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Rural Stanhope, Stanhope, IA

Updated: 3:51 AM CST

Temperature: 39.2 °F Dew Point: 39 °F Humidity: 99% Wind: South at 12.1 mph Pressure: 29.52 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Benton Street, Slater, IA

Updated: 3:51 AM CST

Temperature: 39.2 °F Dew Point: 39 °F Humidity: 100% Wind: South at 4.0 mph Pressure: 29.69 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Prairie Ridge, Story City, IA

Updated: 3:48 AM CST

Temperature: 41.2 °F Dew Point: 38 °F Humidity: 89% Wind: SE at 9.8 mph Pressure: 29.49 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: White Oak Ln, Granger, IA

Updated: 3:50 AM CST

Temperature: 41.3 °F Dew Point: 40 °F Humidity: 93% Wind: SSE at 6.0 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Jester View Estates, Granger, IA

Updated: 3:50 AM CST

Temperature: 40.6 °F Dew Point: 40 °F Humidity: 96% Wind: SSE at 7.0 mph Pressure: 29.66 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: MesoWest GRANT IA US UPR, Nevada, IA

Updated: 2:25 AM CST

Temperature: 36 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: SBALDNERFARMS, Dallas Center, IA

Updated: 3:35 AM CST

Temperature: 39.7 °F Dew Point: 39 °F Humidity: 96% Wind: SSE at 14.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Des Moines Iowa 
1155 PM CST sun Dec 21 2014 


Update... 
issued at 1141 PM CST sun Dec 21 2014 


Precipitation trends continue to be difficult. Another weak shortwave in 
the broader flow is lifting across Iowa. A vorticity maximum tied to this 
is producing enough lift to kick off some showers that currently 
extend from Webster City to just west of the metropolitan to about 
Osceola. The precipitation is lifting north-northeast and will exit the County Warning Area in a 
couple hours. In the broader picture...a secondary trough pushing 
out of The Rockies into Nebraska is producing some forcing that is 
causing precipitation to Blossom over eastern Nebraska. This precipitation is 
also moving north-northeast but because it is expanding...should move into the 
northwestern County Warning Area in the next few hours. These aforementioned features will 
will dive southeast and across northern MO before wrapping back 
around into central Iowa during the day Monday. The system is 
slowing down and thus precipitation will be going longer then first 
thought. The best forcing shifts into southern/cen Iowa by 18z and 
remains over cen into northern Iowa through 00z and into northern Iowa by 06z. 
This is about 6 hours slower than the previous forecast. Precipitation 
should be mostly rain through 00z. However...soundings still hint 
at a possible mix far north as profiles hover the 0 degree line. 
Any mix would be brief though as temperatures go above freezing by 18z. 


Update... 
issued at 1004 PM CST sun Dec 21 2014 


A small vorticity maximum is lifting out of SW Iowa and will continue NE 
across central Iowa. This vorticity maximum is producing enough lift for 
some scattered showers that are currently from Lamoni to west of 
Winterset to Guthrie Center. These will not produce much precipitation 
and they should be short lived. In the bigger picture the system 
as a whole is slowing down and I still am forecasting the main 
precipitation event to be tied to the forcing which is still prognosticated to 
shift across southeast Nebraska/northern MO then wrap back into Iowa from 
12z now through Monday. Initially I thought it would be north by 
21z but it appears it will be more like 23/06z. I did have to 
adjust probability of precipitation into middle Monday morning to blend with the slower trend 
in precipitation. 


Update... 
issued at 705 PM CST sun Dec 21 2014 


Weak wave exiting NE Iowa and precipitation should exit northern locations 
in the next hour or so. Attention shift to the west where precipitation 
is trying to Blossom though currently is having a hard time. Later 
this evening/tonight as moisture deepens and qg forcing increases 
a bit the precipitation should push into the west/north and as mentioned 
in the short term discussion...it should begin as drizzle then 
rain. Towards 12z across the north temperatures may be cold enough for a 
rain snow mix but most other locations should remain all liquid. 


&& 


Short term /tonight/... 
issued at 326 PM CST sun Dec 21 2014 


Situation will begin much like the past several nights with 
persistent stratus but increasing synoptic scale lift eventually 
beginning to play a part late as well. Long wave trough with 
associated weak lift and precipitation mainly aloft is in place from Texas 
across Iowa into the upper MS valley. Minor short weak waves 
embedded in the trough will move east tonight but general axis 
will remain unchanged as jet maximum and associated pv trough dives 
from eastern bitterroots into Wyoming/NE/co/KS common areas by daybreak. 
Lift ahead of these features...currently over western NE...will slowly 
mature and expand eastward into the MO valley and eventually Iowa by 12z. 
Lift appears to mainly be kinematic with minimal baroclinicity 
noted in 285-295k isent layer. Only weak to at times moderate 
850 mb/700 mb Theta-E advection is noted as well. Thus expect precipitation 
progression to begin as light drizzle expanding later this evening 
as low level moisture depth increases from just below 1km to 2km 
or more by 09z. This should lead into higher based light rain 
advancing west-east into the state due to aforementioned synoptic 
lift. 


Precipitation type will mainly be rain...but at least a rain/snow mix may 
start developing NE from Mason City toward Waterloo just before 12z. 
Bufr soundings show nearly isothermal weak warm layer to 900m just 
a degree or so above 0c so confidence in which way this swings 
is not high. Any snow that does fall would be wet and slushy. With 
nearly saturated homogeneous airmass in place from Iowa 
upstream...southerly winds will keep overnight temperatures/dewpoints fairly 
steady with little fall. 


Long term /Monday through Sunday/... 
issued at 326 PM CST sun Dec 21 2014 


Several forecast concerns with precipitation chances and type 
Monday into Tuesday...and with additional probability of precipitation late in the week. 
NAM seems a little too fast with the upper level low Monday into 
Tuesday...while the European model (ecmwf)/sref/GFS are in better agreement with 
one another and utilized a blend of those three during the 
aforementioned time. Still some significant discrepancies late in 
the work week with a fairly strong shortwave to cut across the 
region late Thursday into Friday. The GFS is much further north 
than the more consistent track of the European model (ecmwf)...even though the GFS 
was the first model to hint on the Friday system as an open wave. 


Monday into Tuesday...the better forcing on Monday looks to 
transition across central to southern Iowa before a weak trowal 
develops and pushes the strong forcing for ascent into northern 
Iowa and southern Minnesota by around 00z Tuesday. The warm air advection at the 
surface to middle-levels makes for a problematic precipitation type forecast 
across the northeast. Forecast soundings teeter on the rain/snow 
at mcw to as far southeast as alo Monday morning through around 
17-18z...and even hint on snow possibly into the afternoon at mcw. 
Certainly soundings are deeply saturated but forcing within the 
dendritic layer is fairly weak and have low confidence if the 
falling snow aloft could cool the column to below freezing near 
the surface layer to keep precipitation all snow. On the other hand...the 
surface warm layer may not be deep enough to completely melt the 
snow falling Monday morning at mcw...thus kept the rain/snow 
mentioned across the northeast portions of the forecast area. If 
it does stay all snow...it will be a very slushy wet snow and 
accums up to around 2 inches are possible around mcw area. For 
what its Worth...the 18z NAM is all rain at mcw so the model 
discrepancy continues. At any rate...tweaked up snow amounts 
Monday morning in this area...but only have up to a half inch 
going at this time as thinking there should be enough melting near the 
surface to keep accums down tomorrow. Have a brief break in the 
snow Monday afternoon before mentioning back in the forecast over 
far northern Iowa Monday evening. 


The dry slot continues to punch well into central Iowa by the 
afternoon Monday into Monday night and went dry over the southern 
portions of the forecast area overnight Monday night into Tuesday. 
Wrap-around moisture and cold air advection move into western Iowa past 06z 
Tuesday and more likely closer to 12z Tuesday. Have likely probability of precipitation 
going across the far north 12-18z Tuesday as soundings become 
deeply saturated again during this time frame. Still not much 
forcing with the snow growth region...but enough to tweak snow 
amounts over the north resulting in an inch to around 2 inches 
close to the Minnesota border. Light snow possible elsewhere but 
snow amounts will be less than a half inch at this time by Tuesday night. 


Christmas evening through Friday...strong cold air advection continues on Wednesday 
with light snow showers possible east of I-35 throughout the day 
Wednesday. Only a dusting of snow is anticipated on Christmas evening in 
the east but windy and light falling snow showers may still be 
enough to cause some minor travel concerns. 


Dry and slightly warmer on Christmas day. The sun looks to even peak 
through the stratus across southern Iowa. By late Thursday night 
into Friday...the next stronger shortwave cuts across the forecast 
area per 12z European model (ecmwf) and brings a decent amount of snow and wind to 
the central and northern sections of the forecast area. The GFS 
still pegs Minnesota with this shortwave...so with the model 
discrepancies...leaned toward the slightly more 
consistent European model (ecmwf) for now. 


&& 


Aviation...22/06z 
issued at 1141 PM CST sun Dec 21 2014 


Widespread mainly IFR conditions expected through the forecast 
period primarily due to ceilings with periods of drizzle or light 
rain. Precipitation will become more widespread as rain after 22/10z and 
overspread southern taf locations through the morning. After 23/02z 
precipitation should shift into northern Iowa. Visibilities may drop to 1sm at 
times due to a combo of precipitation and fog with drizzle at times. Surface 
flow will be generally srly but become more easterly after 23/03z. 


&& 


Dmx watches/warnings/advisories... 
none. 
&& 


$$ 


Update...fab 
short term...small 
long term...podrazik 
aviation...fab 






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