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Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

-13°F

-25°C

Humidity 82%
Wind Speed N 5 mph
Barometer 30.28 in (1028.7 mb)
Dewpoint -17°F (-27°C)
Visibility 10.00 mi
Wind Chill-26°F (-32°C)
Last update 25 Jan 6:53 am CST
Extended Forecast for

Thornton IA

Cold Weather Advisory January 26, 12:00am until January 26, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Today

    Today: Mostly sunny and cold, with a high near 5. Wind chill values as low as -20. Light north northeast wind becoming north 5 to 9 mph in the morning.

    High: 5 °F

    Cold

  • Tonight

    Tonight: Partly cloudy, with a low around -12. Wind chill values as low as -30. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: -12 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 16. Wind chill values as low as -30. Breezy, with a west northwest wind 7 to 17 mph becoming south southwest in the afternoon. Winds could gust as high as 23 mph.

    High: 16 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 4. Wind chill values as low as -10. Breezy, with a south southwest wind 14 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 4 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny and cold, with a high near 10. Blustery, with a northwest wind 10 to 18 mph, with gusts as high as 23 mph.

    High: 10 °F

    Cold and
    Blustery

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 12.

    High: 12 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -5.

    Low: -5 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 10.

    High: 10 °F

    Cold

Detailed Forecast

Today
Mostly sunny and cold, with a high near 5. Wind chill values as low as -20. Light north northeast wind becoming north 5 to 9 mph in the morning.
Tonight
Partly cloudy, with a low around -12. Wind chill values as low as -30. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 16. Wind chill values as low as -30. Breezy, with a west northwest wind 7 to 17 mph becoming south southwest in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Partly cloudy, with a low around 4. Wind chill values as low as -10. Breezy, with a south southwest wind 14 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Tuesday
Mostly sunny and cold, with a high near 10. Blustery, with a northwest wind 10 to 18 mph, with gusts as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around -2.
Wednesday
Partly sunny, with a high near 12.
Wednesday Night
Partly cloudy, with a low around -5.
Thursday
Mostly sunny and cold, with a high near 10.
Thursday Night
Partly cloudy, with a low around -3.
Friday
Mostly sunny and cold, with a high near 10.
Friday Night
Partly cloudy, with a low around -4.
Saturday
Sunny, with a high near 16.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
6:31 am CST Jan 25, 2026
Forecast Valid:
7am CST Jan 25, 2026-6pm CST Jan 31, 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