National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Overcast

35°F

2°C

Humidity 93%
Wind Speed S 7 mph
Barometer 30.12 in (1020.4 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 13 Nov 6:53 am CST
Extended Forecast for

Thornton IA

  • Today

    Today: Sunny, with a high near 59. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 18 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. South wind 3 to 7 mph.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 20 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. South wind around 11 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 58. Breezy, with a north northwest wind 10 to 18 mph, with gusts as high as 24 mph.

    High: 58 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of rain after noon. Partly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny
    then Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 59. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 34. South wind 3 to 7 mph.
Friday
Sunny, with a high near 65. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 47. South wind around 11 mph becoming west after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 58. Breezy, with a north northwest wind 10 to 18 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 29.
Monday
A 40 percent chance of rain after noon. Partly sunny, with a high near 46.
Monday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
6:51 am CST Nov 13, 2025
Forecast Valid:
7am CST Nov 13, 2025-6pm CST Nov 19, 2025
 
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