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

30°F

-1°C

Humidity 88%
Wind Speed NW 23 mph
Barometer 29.87 in (1012.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 11 Mar 5:53 am CDT
Extended Forecast for

Chapin IA

  • Today

    Today: Rain and snow likely before 11am, then a slight chance of snow between 11am and noon. Cloudy through mid morning, then gradual clearing, with a high near 40. Windy, with a north northwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 40 °F

    Windy.
    Rain/Snow
    Likely then
    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 52. Windy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 52 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Windy

  • Thursday Night

    Thursday Night: Rain likely before 4am, then a slight chance of rain and snow. Cloudy, then gradually becoming partly cloudy, with a low around 30. Windy, with a south southwest wind 24 to 33 mph becoming west northwest after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 30 °F

    Windy. Rain
    Likely then
    Rain/Snow
    Likely

  • Friday

    Friday: Partly sunny, with a high near 41. Windy, with a northwest wind 22 to 31 mph, with gusts as high as 41 mph.

    High: 41 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Cloudy, with a high near 44.

    High: 44 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Rain and snow, mainly after 1am. Low around 28. Blustery. Chance of precipitation is 80%.

    Low: 28 °F

    Chance
    Rain/Snow and
    Breezy then
    Rain/Snow and
    Blustery

  • Sunday

    Sunday: Rain and snow likely before 1pm, then a chance of snow. Cloudy, with a high near 34. Windy. Chance of precipitation is 60%.

    High: 34 °F

    Rain/Snow
    Likely and
    Windy

Detailed Forecast

Today
Rain and snow likely before 11am, then a slight chance of snow between 11am and noon. Cloudy through mid morning, then gradual clearing, with a high near 40. Windy, with a north northwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly clear, with a low around 26. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Thursday
Increasing clouds, with a high near 52. Windy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Thursday Night
Rain likely before 4am, then a slight chance of rain and snow. Cloudy, then gradually becoming partly cloudy, with a low around 30. Windy, with a south southwest wind 24 to 33 mph becoming west northwest after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 41. Windy, with a northwest wind 22 to 31 mph, with gusts as high as 41 mph.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.
Saturday
A 20 percent chance of snow after 1pm. Cloudy, with a high near 44.
Saturday Night
Rain and snow, mainly after 1am. Low around 28. Blustery. Chance of precipitation is 80%.
Sunday
Rain and snow likely before 1pm, then a chance of snow. Cloudy, with a high near 34. Windy. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 8. Windy.
Monday
Mostly sunny, with a high near 23. Windy.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Mostly cloudy, with a high near 29.
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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:
5:53 am CDT Mar 11, 2026
Forecast Valid:
6am CDT Mar 11, 2026-6pm CDT Mar 17, 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