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 and Windy

42°F

6°C

Humidity 73%
Wind Speed NW 26 G 36 mph
Barometer 30.24 in (1024.3 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 5 Apr 9:53 pm CDT
Extended Forecast for

Thornton IA

  • Tonight

    Tonight: Mostly clear, with a low around 30. North northwest wind 10 to 14 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 42. Breezy, with a north northwest wind 15 to 18 mph, with gusts as high as 23 mph.

    High: 42 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. North wind 7 to 14 mph becoming east northeast after midnight. Winds could gust as high as 18 mph.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow showers, mainly between 1pm and 4pm. Partly sunny, with a high near 40. Southeast wind 7 to 15 mph, with gusts as high as 21 mph. Little or no snow accumulation expected.

    High: 40 °F

    Mostly Sunny
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Rain and snow showers likely, becoming all rain after 10pm. Mostly cloudy, with a low around 31. Windy, with a south southeast wind 16 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    Likely and
    Breezy then
    Showers
    Likely and
    Windy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 64. Windy. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Chance
    Showers and
    Windy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A 30 percent chance of showers. Mostly sunny, with a high near 57.

    High: 57 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Partly cloudy, with a low around 33.

    Low: 33 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 30. North northwest wind 10 to 14 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 42. Breezy, with a north northwest wind 15 to 18 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 22. North wind 7 to 14 mph becoming east northeast after midnight. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of snow showers, mainly between 1pm and 4pm. Partly sunny, with a high near 40. Southeast wind 7 to 15 mph, with gusts as high as 21 mph. Little or no snow accumulation expected.
Tuesday Night
Rain and snow showers likely, becoming all rain after 10pm. Mostly cloudy, with a low around 31. Windy, with a south southeast wind 16 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 64. Windy. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 39. Breezy.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 57.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 33.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 56.
Friday Night
A 50 percent chance of showers. Partly cloudy, with a low around 40.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 60. Breezy.
Saturday Night
Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Sunday
Showers likely. Mostly cloudy, with a high near 70. Breezy. Chance of precipitation is 70%.
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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:
10:31 pm CDT Apr 5, 2026
Forecast Valid:
10pm CDT Apr 5, 2026-6pm CDT Apr 12, 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