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

56°F

13°C

Humidity 65%
Wind Speed SE 13 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 22 May 9:53 am CDT
Extended Forecast for

Grundy Center IA

  • Today

    Today: Mostly cloudy, with a high near 69. Breezy, with an east southeast wind around 16 mph, with gusts as high as 23 mph.

    High: 69 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 52. Southeast wind 5 to 14 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 10 percent chance of showers before 7am. Mostly sunny, with a high near 74. South wind 5 to 8 mph becoming west in the afternoon.

    High: 74 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 50. West northwest wind around 6 mph becoming calm in the evening.

    Low: 50 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 80. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 69. Breezy, with an east southeast wind around 16 mph, with gusts as high as 23 mph.
Tonight
A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 52. Southeast wind 5 to 14 mph, with gusts as high as 20 mph.
Saturday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 74. South wind 5 to 8 mph becoming west in the afternoon.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 50. West northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 80. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 54.
Memorial Day
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 61.
Thursday
A 30 percent chance of showers and thunderstorms. Partly 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:
6:51 am CDT May 22, 2026
Forecast Valid:
10am CDT May 22, 2026-6pm CDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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