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.

Fair

4°F

-16°C

Humidity 66%
Wind Speed N 14 mph
Barometer 30.31 in (1028.3 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill-14°F (-26°C)
Last update 7 Dec 10:53 am CST
Extended Forecast for

Mason City IA

  • Today

    Today: Mostly sunny and cold, with a high near 10. Wind chill values as low as -10. North wind 5 to 11 mph.

    High: 10 °F

    Cold

  • Tonight

    Tonight: A 40 percent chance of snow, mainly between 11pm and 5am. Increasing clouds, with a temperature rising to around 8 by 5am. Wind chill values as low as -10. Light and variable wind becoming south 5 to 8 mph after midnight. New snow accumulation of less than a half inch possible.

    Low: 2 °F⇑

    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 26. Wind chill values as low as zero. South wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 26 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a steady temperature around 24. South wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain after noon. Mostly cloudy, with a high near 38. West wind 7 to 14 mph becoming south in the afternoon. Winds could gust as high as 21 mph.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 19. Windy. New precipitation amounts of less than a tenth of an inch possible.

    Low: 19 °F

    Chance Rain
    and Breezy
    then Mostly
    Cloudy and
    Windy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 26. Blustery.

    High: 26 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow. Mostly cloudy, with a high near 17.

    High: 17 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny and cold, with a high near 10. Wind chill values as low as -10. North wind 5 to 11 mph.
Tonight
A 40 percent chance of snow, mainly between 11pm and 5am. Increasing clouds, with a temperature rising to around 8 by 5am. Wind chill values as low as -10. Light and variable wind becoming south 5 to 8 mph after midnight. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 26. Wind chill values as low as zero. South wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a steady temperature around 24. South wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph.
Tuesday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 38. West wind 7 to 14 mph becoming south in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 19. Windy. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, with a high near 26. Blustery.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 9.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 17.
Thursday Night
Mostly cloudy, with a low around -4.
Friday
Partly sunny and cold, with a high near 4.
Friday Night
Mostly cloudy, with a low around -10.
Saturday
Partly sunny and cold, with a high near 4.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mason City IA
 43.15°N 93.19°W
Last Update:
11:12 am CST Dec 7, 2025
Forecast Valid:
11am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation