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Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

51°F

11°C

Humidity 71%
Wind Speed W 8 mph
Barometer 29.99 in (1014.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 15 Jun 5:53 am CDT
Extended Forecast for

Thornton IA

  • Today

    Today: Increasing clouds, with a high near 76. Light west southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 20 mph.

    High: 76 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Increasing clouds, with a low around 53. West southwest wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 73. Breezy, with a northwest wind 15 to 18 mph, with gusts as high as 24 mph.

    High: 73 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 54. Light and variable wind becoming south southeast 6 to 11 mph after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 78. Breezy, with a south southeast wind 15 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 54. Windy. Chance of precipitation is 20%.

    Low: 54 °F

    Windy. Slight
    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Breezy.

    High: 73 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 76. Light west southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Increasing clouds, with a low around 53. West southwest wind 7 to 9 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 73. Breezy, with a northwest wind 15 to 18 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 54. Light and variable wind becoming south southeast 6 to 11 mph after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. High near 78. Breezy, with a south southeast wind 15 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 54. Windy. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 73. Breezy.
Thursday Night
Mostly clear, with a low around 50.
Juneteenth
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 57.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
6:07 am CDT Jun 15, 2026
Forecast Valid:
6am CDT Jun 15, 2026-6pm CDT Jun 21, 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