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Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Mostly Cloudy

15°F

-9°C

Humidity 64%
Wind Speed S 12 mph
Barometer 30.14 in (1022.9 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 20 Jan 1:53 pm CST
Extended Forecast for

Chapin IA

Winter Weather Advisory January 20, 03:00pm until January 21, 03:00am
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: Snow likely, mainly after 5pm. Mostly cloudy, with a high near 17. Wind chill values as low as 5. South wind 6 to 8 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 17 °F

    Snow Likely

  • Tonight

    Tonight: Snow, mainly before midnight. Low around 11. Wind chill values as low as zero. South southeast wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 11 °F

    Snow then
    Chance Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow after noon. Patchy blowing snow after 2pm. Partly sunny, with a high near 28. Wind chill values as low as zero. Windy, with a west southwest wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 30 mph. New snow accumulation of less than one inch possible.

    High: 28 °F

    Partly Sunny
    then Chance
    Snow and
    Patchy
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Patchy blowing snow before 9pm. Partly cloudy, with a low around 5. Wind chill values as low as -10. Windy, with a west northwest wind 19 to 24 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.

    Low: 5 °F

    Patchy
    Blowing Snow
    and Windy
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 15. West wind 8 to 14 mph.

    High: 15 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -17.

    Low: -17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -9.

    High: -9 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -17.

    Low: -17 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near -2.

    High: -2 °F

    Cold

Detailed Forecast

This Afternoon
Snow likely, mainly after 5pm. Mostly cloudy, with a high near 17. Wind chill values as low as 5. South wind 6 to 8 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before midnight. Low around 11. Wind chill values as low as zero. South southeast wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
A 40 percent chance of snow after noon. Patchy blowing snow after 2pm. Partly sunny, with a high near 28. Wind chill values as low as zero. Windy, with a west southwest wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 30 mph. New snow accumulation of less than one inch possible.
Wednesday Night
Patchy blowing snow before 9pm. Partly cloudy, with a low around 5. Wind chill values as low as -10. Windy, with a west northwest wind 19 to 24 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.
Thursday
Mostly sunny, with a high near 15. West wind 8 to 14 mph.
Thursday Night
Partly cloudy, with a low around -17.
Friday
Mostly sunny and cold, with a high near -9.
Friday Night
Partly cloudy, with a low around -17.
Saturday
Partly sunny and cold, with a high near -2.
Saturday Night
Partly cloudy, with a low around -11.
Sunday
Mostly sunny and cold, with a high near 9.
Sunday Night
Partly cloudy, with a low around -5.
Monday
Sunny, with a high near 17.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
11:26 am CST Jan 20, 2026
Forecast Valid:
2pm CST Jan 20, 2026-6pm CST Jan 26, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation