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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Mostly Cloudy

67°F

19°C

Humidity 26%
Wind Speed NW 15 G 28 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 12 May 8:53 pm CDT
Extended Forecast for

Montour IA

  • Tonight

    Tonight: Clear, with a low around 48. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.

    Low: 48 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. North northwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 44. North wind around 6 mph becoming calm in the evening.

    Low: 44 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 77. Breezy, with a south southeast wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 77 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 54. Breezy, with a south southeast wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Sunny, with a high near 87.

    High: 87 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 48. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 73. North northwest wind 8 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Clear, with a low around 44. North wind around 6 mph becoming calm in the evening.
Thursday
Increasing clouds, with a high near 77. Breezy, with a south southeast wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Thursday Night
A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 54. Breezy, with a south southeast wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 88.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 55.
Saturday
A 20 percent chance of showers after 1pm. Sunny, with a high near 87.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Breezy.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 81. Breezy.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montour IA
 41.99°N 92.71°W
Last Update:
5:32 pm CDT May 12, 2026
Forecast Valid:
8pm CDT May 12, 2026-6pm CDT May 19, 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