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

20°F

-7°C

Humidity 81%
Wind Speed NE 6 mph
Barometer 30.43 in (1031.5 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 7 Apr 4:53 am CDT
Extended Forecast for

Thornton IA

  • Today

    Today: A slight chance of rain and snow showers after 5pm. Increasing clouds, with a high near 43. Breezy, with an east wind 6 to 11 mph becoming south southeast 12 to 17 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 10%.

    High: 43 °F

    Sunny then
    Slight Chance
    Rain/Snow and
    Breezy

  • Tonight

    Tonight: A chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 34. Windy, with a south southeast wind 18 to 25 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance
    Showers and
    Windy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 64. Windy, with a south wind 26 to 34 mph becoming west southwest in the afternoon. Winds could gust as high as 41 mph. 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 slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Partly cloudy, with a low around 34. West wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 53. Northwest wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Sunny then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 34. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 34 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Partly sunny, with a high near 60. Breezy.

    High: 60 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
A slight chance of rain and snow showers after 5pm. Increasing clouds, with a high near 43. Breezy, with an east wind 6 to 11 mph becoming south southeast 12 to 17 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 10%.
Tonight
A chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 34. Windy, with a south southeast wind 18 to 25 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 64. Windy, with a south wind 26 to 34 mph becoming west southwest in the afternoon. Winds could gust as high as 41 mph. 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 slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Partly cloudy, with a low around 34. West wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 53. Northwest wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 34. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 56.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 37.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 60. Breezy.
Saturday Night
Showers likely. Mostly cloudy, with a low around 52. Breezy. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 70. Windy. Chance of precipitation is 70%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 56. Windy. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Mostly sunny, with a high near 73. Breezy.
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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:
4:46 am CDT Apr 7, 2026
Forecast Valid:
5am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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