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.

Light Rain

35°F

2°C

Humidity 96%
Wind Speed E 16 mph
Barometer 29.64 in (1004.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 2 Apr 9:53 am CDT
Extended Forecast for

Thornton IA

  • Today

    Today: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before 2pm. High near 44. Breezy, with an east wind 13 to 17 mph becoming north in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 44 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 30. Blustery, with a west northwest wind 7 to 16 mph, with gusts as high as 23 mph.

    Low: 30 °F

    Slight Chance
    T-storms and
    Blustery then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 49. Breezy, with an east wind 7 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 49 °F

    Chance
    Showers then
    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 33. Breezy, with an east wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers and
    Breezy

  • Saturday

    Saturday: Mostly cloudy, with a high near 41. Windy, with a west wind 18 to 26 mph, with gusts as high as 32 mph.

    High: 41 °F

    Mostly Cloudy
    and Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27. Windy.

    Low: 27 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 47. Breezy.

    High: 47 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before 2pm. High near 44. Breezy, with an east wind 13 to 17 mph becoming north in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 30. Blustery, with a west northwest wind 7 to 16 mph, with gusts as high as 23 mph.
Friday
A chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 49. Breezy, with an east wind 7 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 33. Breezy, with an east wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly cloudy, with a high near 41. Windy, with a west wind 18 to 26 mph, with gusts as high as 32 mph.
Saturday Night
Mostly cloudy, with a low around 27. Windy.
Sunday
Sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 47. Breezy.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 48. Breezy.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 36. Windy.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 66. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
6:47 am CDT Apr 2, 2026
Forecast Valid:
10am CDT Apr 2, 2026-6pm CDT Apr 8, 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