Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fog

37°F

3°C

Humidity 96%
Wind Speed SE 13 mph
Barometer 29.86 in (1011.8 mb)
Dewpoint 36°F (2°C)
Visibility 0.50 mi
Wind Chill29°F (-2°C)
Last update 27 Dec 7:53 am CST
Extended Forecast for

Grundy Center IA

Dense Fog Advisory December 27, 08:19am until December 27, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 27, 08:19am until December 27, 12:00pm

    NOW until 12:00pm Sat

    Dense Fog Advisory

  • Today

    High: 45 °F

    Dense Fog

  • Tonight

    Tonight: A 30 percent chance of rain after 5am.  Patchy fog.  Otherwise, cloudy, with a low around 38. Southeast wind 5 to 9 mph becoming light and variable.

    Low: 38 °F

    Patchy Fog
    then Chance
    Rain and
    Areas Fog

  • Sunday

    Sunday: Rain and snow, possibly mixed with sleet before 1pm, then snow, possibly mixed with sleet between 1pm and 3pm, then snow after 3pm.  Patchy blowing snow after 1pm. Areas of fog before 7am. Temperature falling to around 18 by 5pm. Wind chill values as low as zero. Windy, with a northwest wind 9 to 19 mph increasing to 21 to 31 mph in the afternoon. Winds could gust as high as 44 mph.  Chance of precipitation is 90%. New snow and sleet accumulation of less than one inch possible.

    High: 40 °F

    Wintry Mix
    and Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow before midnight.  Patchy blowing snow after 10pm. Mostly cloudy, with a low around 7. Wind chill values as low as -15. Windy, with a northwest wind 31 to 33 mph, with gusts as high as 43 mph.  New snow accumulation of less than a half inch possible.

    Low: 7 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday

    Monday: Patchy blowing snow before noon. Partly sunny, with a high near 13. Windy, with a northwest wind 21 to 30 mph, with gusts as high as 38 mph.

    High: 13 °F

    Windy. Patchy
    Blowing Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 6. Blustery.

    Low: 6 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Today
Widespread dense fog before 2pm, then patchy dense fog after 5pm. Otherwise, cloudy, with a high near 45. South southeast wind 9 to 14 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of rain after 5am. Patchy fog. Otherwise, cloudy, with a low around 38. Southeast wind 5 to 9 mph becoming light and variable.
Sunday
Rain and snow, possibly mixed with sleet before 1pm, then snow, possibly mixed with sleet between 1pm and 3pm, then snow after 3pm. Patchy blowing snow after 1pm. Areas of fog before 7am. Temperature falling to around 18 by 5pm. Wind chill values as low as zero. Windy, with a northwest wind 9 to 19 mph increasing to 21 to 31 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 90%. New snow and sleet accumulation of less than one inch possible.
Sunday Night
A 50 percent chance of snow before midnight. Patchy blowing snow after 10pm. Mostly cloudy, with a low around 7. Wind chill values as low as -15. Windy, with a northwest wind 31 to 33 mph, with gusts as high as 43 mph. New snow accumulation of less than a half inch possible.
Monday
Patchy blowing snow before noon. Partly sunny, with a high near 13. Windy, with a northwest wind 21 to 30 mph, with gusts as high as 38 mph.
Monday Night
Mostly clear, with a low around 6. Blustery.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Mostly cloudy, with a high near 27.
Wednesday Night
Mostly cloudy, with a low around 3.
New Year's Day
Sunny, with a high near 12.
Thursday Night
Mostly clear, with a low around 0.
Friday
Mostly sunny, with a high near 18.
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
7:16 am CST Dec 27, 2025
8am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
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Additional Resources

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