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.

Fair

50°F

10°C

Humidity 93%
Wind Speed Calm
Barometer 30.00 in (1015.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 24 May 2:53 am CDT
Extended Forecast for

Grundy Center IA

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 54. Light west wind.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. Light southwest wind increasing to 8 to 13 mph in the morning.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 57. South southwest wind 8 to 10 mph.

    Low: 57 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Memorial Day

    Memorial Day: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Mostly sunny, with a high near 83. South southwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. South wind 6 to 11 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 54. Light west wind.
Sunday
Sunny, with a high near 81. Light southwest wind increasing to 8 to 13 mph in the morning.
Sunday Night
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 57. South southwest wind 8 to 10 mph.
Memorial Day
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Mostly sunny, with a high near 83. South southwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 59. South wind 6 to 11 mph.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
1:26 am CDT May 24, 2026
Forecast Valid:
3am CDT May 24, 2026-6pm CDT May 30, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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