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.

Fair

19°F

-7°C

Humidity 68%
Wind Speed E 7 mph
Barometer 30.31 in (1027.6 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 7 Feb 3:53 am CST
Extended Forecast for

Thornton IA

  • Today

    Today: Mostly sunny, with a high near 31. Wind chill values as low as 10. Breezy, with a south southeast wind 6 to 16 mph, with gusts as high as 22 mph.

    High: 31 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 35. Southeast wind 5 to 8 mph.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. South southwest wind 5 to 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 49. South southwest wind 7 to 10 mph.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 25. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 31. Wind chill values as low as 10. Breezy, with a south southeast wind 6 to 16 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 21. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 35. Southeast wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 27. South southwest wind 5 to 7 mph.
Monday
Partly sunny, with a high near 49. South southwest wind 7 to 10 mph.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly cloudy, with a high near 42.
Tuesday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 25. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 26.
Thursday
A 30 percent chance of snow. Partly sunny, with a high near 40.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 40.
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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:
3:17 am CST Feb 7, 2026
Forecast Valid:
4am CST Feb 7, 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