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 and Breezy

40°F

4°C

Humidity 77%
Wind Speed N 22 G 30 mph
Barometer 29.74 in (1007.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 10 Mar 8:53 pm CDT
Extended Forecast for

Chapin IA

  • Tonight

    Tonight: A slight chance of snow between 4am and 5am, then a chance of rain. Mostly cloudy, with a low around 31. Blustery, with a north wind 14 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain/Snow and
    Blustery

  • Wednesday

    Wednesday: Rain and snow likely before 9am, then a chance of snow between 9am and noon. Cloudy through mid morning, then gradual clearing, with a high near 41. Windy, with a north northwest wind 18 to 28 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Windy.
    Rain/Snow
    Likely then
    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 26. West wind 6 to 13 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 51. Windy, with a south southwest wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 51 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Windy

  • Thursday Night

    Thursday Night: Rain likely before 4am, then a slight chance of snow. Mostly cloudy, with a low around 30. Windy, with a south southwest wind 21 to 26 mph becoming west 27 to 32 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Windy. Rain
    Likely then
    Rain/Snow
    Likely

  • Friday

    Friday: Partly sunny, with a high near 43. Windy.

    High: 43 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 1pm. Cloudy, with a high near 46.

    High: 46 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Rain and snow likely, mainly after 1am. Cloudy, with a low around 26. Blustery. Chance of precipitation is 70%.

    Low: 26 °F

    Rain/Snow
    Likely and
    Blustery

Detailed Forecast

Tonight
A slight chance of snow between 4am and 5am, then a chance of rain. Mostly cloudy, with a low around 31. Blustery, with a north wind 14 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday
Rain and snow likely before 9am, then a chance of snow between 9am and noon. Cloudy through mid morning, then gradual clearing, with a high near 41. Windy, with a north northwest wind 18 to 28 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around 26. West wind 6 to 13 mph.
Thursday
Increasing clouds, with a high near 51. Windy, with a south southwest wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Rain likely before 4am, then a slight chance of snow. Mostly cloudy, with a low around 30. Windy, with a south southwest wind 21 to 26 mph becoming west 27 to 32 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 43. Windy.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 29.
Saturday
A 30 percent chance of snow, mainly after 1pm. Cloudy, with a high near 46.
Saturday Night
Rain and snow likely, mainly after 1am. Cloudy, with a low around 26. Blustery. Chance of precipitation is 70%.
Sunday
A chance of rain and snow before 1pm, then a chance of snow. Mostly cloudy, with a high near 34. Windy. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 7. Windy.
Monday
Mostly sunny, with a high near 23.
Monday Night
Partly cloudy, with a low around 9.
Tuesday
Partly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
7:28 pm CDT Mar 10, 2026
Forecast Valid:
9pm CDT Mar 10, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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