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

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Overcast

50°F

10°C

Humidity 68%
Wind Speed E 12 mph
Barometer 30.24 in (1024.2 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 21 May 5:53 am CDT
Extended Forecast for

Grundy Center IA

  • Today

    Today: A chance of sprinkles between 10am and 11am. Cloudy, with a high near 61. East wind 8 to 13 mph, with gusts as high as 22 mph.

    High: 61 °F

    Chance
    Sprinkles

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. East wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 64. East wind 13 to 15 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 50. East wind 6 to 11 mph becoming light east southeast after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 73. Light and variable wind becoming west southwest 5 to 8 mph in the morning.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
A chance of sprinkles between 10am and 11am. Cloudy, with a high near 61. East wind 8 to 13 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 45. East wind 11 to 13 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 64. East wind 13 to 15 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 50. East wind 6 to 11 mph becoming light east southeast after midnight. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 73. Light and variable wind becoming west southwest 5 to 8 mph in the morning.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 53.
Memorial Day
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
6:11 am CDT May 21, 2026
Forecast Valid:
6am CDT May 21, 2026-6pm CDT May 27, 2026
 
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