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

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Overcast

26°F

-3°C

Humidity 69%
Wind Speed S 18 G 24 mph
Barometer 29.64 in (1005.0 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 15 Jan 4:53 pm CST
Extended Forecast for

Chapin IA

Winter Weather Advisory January 16, 12:00am until January 16, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A slight chance of snow showers before 1am, then a slight chance of snow showers after 3am. Mostly cloudy, with a low around 28. Windy, with a southwest wind 10 to 15 mph becoming west northwest 17 to 22 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Snow Showers
    and Windy

  • Friday

    Friday: Snow showers likely, mainly between noon and 5pm. Patchy blowing snow between noon and 5pm. Mostly cloudy, with a temperature falling to around 19 by 5pm. Wind chill values as low as zero. Windy, with a northwest wind 24 to 32 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 29 °F⇓

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Friday Night

    Friday Night: A chance of snow showers before midnight, then a slight chance of snow after midnight. Mostly cloudy, with a low around 5. Wind chill values as low as -15. Windy, with a northwest wind 20 to 26 mph, with gusts as high as 32 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 5 °F

    Chance Snow
    Showers and
    Windy

  • Saturday

    Saturday: A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 10. Wind chill values as low as -15. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 10 °F

    Windy. Slight
    Chance Snow
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 0. Blustery, with a northwest wind 9 to 18 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.

    Low: 0 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 23. Blustery.

    High: 23 °F

    Partly Sunny
    then Partly
    Sunny and
    Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -2. Windy.

    Low: -2 °F

    Partly Cloudy
    and Windy

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 8. Windy.

    High: 8 °F

    Cold and
    Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 1.

    Low: 1 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of snow showers before 1am, then a slight chance of snow showers after 3am. Mostly cloudy, with a low around 28. Windy, with a southwest wind 10 to 15 mph becoming west northwest 17 to 22 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Friday
Snow showers likely, mainly between noon and 5pm. Patchy blowing snow between noon and 5pm. Mostly cloudy, with a temperature falling to around 19 by 5pm. Wind chill values as low as zero. Windy, with a northwest wind 24 to 32 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A chance of snow showers before midnight, then a slight chance of snow after midnight. Mostly cloudy, with a low around 5. Wind chill values as low as -15. Windy, with a northwest wind 20 to 26 mph, with gusts as high as 32 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday
A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 10. Wind chill values as low as -15. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 0. Blustery, with a northwest wind 9 to 18 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.
Sunday
Partly sunny, with a high near 23. Blustery.
Sunday Night
Partly cloudy, with a low around -2. Windy.
M.L.King Day
Mostly sunny and cold, with a high near 8. Windy.
Monday Night
Mostly clear, with a low around 1.
Tuesday
Partly sunny, with a high near 24.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Mostly sunny, with a high near 23.
Wednesday Night
Partly cloudy, with a low around 10.
Thursday
Partly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
3:17 pm CST Jan 15, 2026
Forecast Valid:
5pm CST Jan 15, 2026-6pm CST Jan 22, 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