National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Overcast

42°F

6°C

Humidity 60%
Wind Speed E 5 mph
Barometer 30.02 in (1017.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 17 Nov 12:53 am CST
Extended Forecast for

Grundy Center IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 33. Calm wind becoming east around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Rain likely, mainly after 5pm. Mostly cloudy, with a high near 47. East southeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain. Low around 36. Breezy, with an east southeast wind 13 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: A 40 percent chance of rain before noon. Mostly cloudy, with a high near 44. East northeast wind 9 to 13 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 36. East northeast wind 3 to 8 mph.

    Low: 36 °F

    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Partly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. Calm wind becoming east around 6 mph.
Monday
Rain likely, mainly after 5pm. Mostly cloudy, with a high near 47. East southeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 36. Breezy, with an east southeast wind 13 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 40 percent chance of rain before noon. Mostly cloudy, with a high near 44. East northeast wind 9 to 13 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Cloudy, with a low around 36. East northeast wind 3 to 8 mph.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 38.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 54.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 40.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 50.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
12:31 am CST Nov 17, 2025
Forecast Valid:
1am CST Nov 17, 2025-6pm CST Nov 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation