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

58°F

14°C

Humidity 53%
Wind Speed NE 9 mph
Barometer 29.82 in (1009.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 16 Feb 2:53 pm CST
Extended Forecast for

Thornton IA

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 61. East wind around 5 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. East wind 6 to 9 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59. Windy, with an east southeast wind 10 to 15 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 59 °F

    Mostly Cloudy
    and Windy

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms before midnight, then a slight chance of rain. Partly cloudy, with a low around 42. Breezy, with a southeast wind 14 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    Low: 42 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 57. Windy, with a west wind 17 to 26 mph, with gusts as high as 32 mph.

    High: 57 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of rain and snow before noon, then a chance of rain. Partly sunny, with a high near 46. Breezy. Chance of precipitation is 40%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Snow likely, possibly mixed with rain, becoming all snow after midnight. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 60%.

    Low: 24 °F

    Blustery.
    Rain/Snow
    Likely then
    Snow Likely

  • Friday

    Friday: A 30 percent chance of snow before noon. Partly sunny, with a high near 33. Breezy.

    High: 33 °F

    Breezy.
    Chance Snow
    then Partly
    Sunny

Detailed Forecast

Washington's Birthday
Sunny, with a high near 61. East wind around 5 mph.
Tonight
Partly cloudy, with a low around 39. East wind 6 to 9 mph.
Tuesday
Mostly cloudy, with a high near 59. Windy, with an east southeast wind 10 to 15 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
A chance of rain and thunderstorms before midnight, then a slight chance of rain. Partly cloudy, with a low around 42. Breezy, with a southeast wind 14 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Wednesday
Sunny, with a high near 57. Windy, with a west wind 17 to 26 mph, with gusts as high as 32 mph.
Wednesday Night
Mostly clear, with a low around 30.
Thursday
A slight chance of rain and snow before noon, then a chance of rain. Partly sunny, with a high near 46. Breezy. Chance of precipitation is 40%.
Thursday Night
Snow likely, possibly mixed with rain, becoming all snow after midnight. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 60%.
Friday
A 30 percent chance of snow before noon. Partly sunny, with a high near 33. Breezy.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 15.
Sunday
Sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
2:36 pm CST Feb 16, 2026
Forecast Valid:
3pm CST Feb 16, 2026-6pm CST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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