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

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

22°F

-6°C

Humidity 85%
Wind Speed S 13 mph
Barometer 30.00 in (1016.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 9 Feb 6:53 am CST
Extended Forecast for

Thornton IA

  • Today

    Today: Mostly cloudy, with a high near 48. South wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Blustery, with a south wind 7 to 16 mph becoming north northwest in the evening. Winds could gust as high as 28 mph.

    Low: 30 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 42 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. North northwest wind 5 to 9 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. North northwest wind around 5 mph becoming light and variable in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.

    High: 41 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 48. South wind 8 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 30. Blustery, with a south wind 7 to 16 mph becoming north northwest in the evening. Winds could gust as high as 28 mph.
Tuesday
Mostly sunny, with a high near 42. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 23. North northwest wind 5 to 9 mph.
Wednesday
Mostly sunny, with a high near 41. North northwest wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 30.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 41.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
5:02 am CST Feb 9, 2026
Forecast Valid:
7am CST Feb 9, 2026-6pm CST Feb 15, 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