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

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Partly Cloudy

28°F

-2°C

Humidity 69%
Wind Speed N 15 mph
Barometer 30.26 in (1025.5 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 6 Feb 8:53 pm CST
Extended Forecast for

Thornton IA

  • Tonight

    Tonight: Mostly clear, with a low around 12. North wind 5 to 11 mph becoming east southeast after midnight. Winds could gust as high as 18 mph.

    Low: 12 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 30. Wind chill values as low as 5. South southeast wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 30 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21. South southeast wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36. East southeast wind around 6 mph.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27. South southeast wind around 6 mph becoming southwest after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 12. North wind 5 to 11 mph becoming east southeast after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 30. Wind chill values as low as 5. South southeast wind 6 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 21. South southeast wind 8 to 14 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 36. East southeast wind around 6 mph.
Sunday Night
Mostly cloudy, with a low around 27. South southeast wind around 6 mph becoming southwest after midnight.
Monday
Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
9:18 pm CST Feb 6, 2026
Forecast Valid:
9pm CST Feb 6, 2026-6pm CST Feb 13, 2026
 
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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