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 and Breezy

11°F

-12°C

Humidity 70%
Wind Speed NW 24 mph
Barometer 30.03 in (1018.8 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-9°F (-23°C)
Last update 16 Mar 12:53 pm CDT
Extended Forecast for

Thornton IA

  • This Afternoon

    This Afternoon: Areas of blowing snow. Partly sunny, with a high near 13. Wind chill values as low as -10. Windy, with a northwest wind around 26 mph, with gusts as high as 33 mph.

    High: 13 °F

    Areas Blowing
    Snow and
    Windy

  • Tonight

    Tonight: Patchy blowing snow before 7pm. Partly cloudy, with a low around -1. Wind chill values as low as -15. Windy, with a northwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 28 mph.

    Low: -1 °F

    Patchy
    Blowing Snow
    and Windy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Snow likely, mainly after 4pm. Increasing clouds, with a high near 25. Wind chill values as low as -15. Light and variable wind becoming south 9 to 14 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 25 °F

    Mostly Sunny
    then Snow
    Likely

  • Tuesday Night

    Tuesday Night: Snow, mainly before 9pm. Steady temperature around 23. Wind chill values as low as 10. Breezy, with a south wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Snow and
    Breezy then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. West southwest wind 6 to 8 mph.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Areas of blowing snow. Partly sunny, with a high near 13. Wind chill values as low as -10. Windy, with a northwest wind around 26 mph, with gusts as high as 33 mph.
Tonight
Patchy blowing snow before 7pm. Partly cloudy, with a low around -1. Wind chill values as low as -15. Windy, with a northwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 28 mph.
Tuesday
Snow likely, mainly after 4pm. Increasing clouds, with a high near 25. Wind chill values as low as -15. Light and variable wind becoming south 9 to 14 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow, mainly before 9pm. Steady temperature around 23. Wind chill values as low as 10. Breezy, with a south wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
Mostly sunny, with a high near 42. West southwest wind 6 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 50. 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:
11:47 am CDT Mar 16, 2026
Forecast Valid:
1pm CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
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Additional Resources

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Chance of Precipitation