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

47°F

8°C

Humidity 52%
Wind Speed E 16 mph
Barometer 30.13 in (1020.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 1 Apr 11:53 am CDT
Extended Forecast for

Thornton IA

  • Today

    Today: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 50. Breezy, with an east wind 17 to 20 mph, with gusts as high as 24 mph.

    High: 50 °F

    Slight Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Showers, mainly after 7pm. Low around 35. Windy, with an east wind 20 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Showers and
    Windy

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 53. Breezy, with an east wind 15 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 31. Blustery, with a west northwest wind 7 to 17 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 31 °F

    Chance
    Showers and
    Blustery then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 54. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: A 20 percent chance of showers. Mostly cloudy, with a high near 42. Windy.

    High: 42 °F

    Slight Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. Windy.

    Low: 26 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 49. Breezy.

    High: 49 °F

    Sunny and
    Breezy

Detailed Forecast

Today
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 50. Breezy, with an east wind 17 to 20 mph, with gusts as high as 24 mph.
Tonight
Showers, mainly after 7pm. Low around 35. Windy, with an east wind 20 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Showers and possibly a thunderstorm. High near 53. Breezy, with an east wind 15 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 31. Blustery, with a west northwest wind 7 to 17 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 54. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 20 percent chance of showers. Mostly cloudy, with a high near 42. Windy.
Saturday Night
Mostly cloudy, with a low around 26. Windy.
Sunday
Sunny, with a high near 49. Breezy.
Sunday Night
Mostly clear, with a low around 31.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 49.
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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:
11:48 am CDT Apr 1, 2026
Forecast Valid:
11am CDT Apr 1, 2026-6pm CDT Apr 7, 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