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

55°F

13°C

Humidity 55%
Wind Speed N 10 mph
Barometer 29.64 in (1003.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 9 Mar 10:53 am CDT
Extended Forecast for

Chapin IA

  • Today

    Today: Sunny, with a high near 63. Northwest wind 8 to 10 mph becoming northeast in the afternoon.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. North northeast wind 5 to 8 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 56. North northeast wind 10 to 15 mph, with gusts as high as 18 mph.

    High: 56 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 32. Breezy, with a north northeast wind 14 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: A chance of rain and snow before 10am, then a chance of snow between 10am and 1pm. Partly sunny, with a high near 43. Windy, with a northwest wind 18 to 23 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Windy. Chance
    Rain/Snow
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly cloudy, with a high near 52. Windy.

    High: 52 °F

    Mostly Cloudy
    and Windy

  • Thursday Night

    Thursday Night: Rain likely before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 32. Windy. Chance of precipitation is 60%.

    Low: 32 °F

    Windy. Rain
    Likely then
    Rain/Snow
    Likely

  • Friday

    Friday: Partly sunny, with a high near 45. Windy.

    High: 45 °F

    Partly Sunny
    and Windy

Detailed Forecast

Today
Sunny, with a high near 63. Northwest wind 8 to 10 mph becoming northeast in the afternoon.
Tonight
Mostly clear, with a low around 36. North northeast wind 5 to 8 mph.
Tuesday
Increasing clouds, with a high near 56. North northeast wind 10 to 15 mph, with gusts as high as 18 mph.
Tuesday Night
A chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 32. Breezy, with a north northeast wind 14 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow before 10am, then a chance of snow between 10am and 1pm. Partly sunny, with a high near 43. Windy, with a northwest wind 18 to 23 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around 25.
Thursday
Mostly cloudy, with a high near 52. Windy.
Thursday Night
Rain likely before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 32. Windy. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 45. Windy.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 29.
Saturday
Mostly cloudy, with a high near 47.
Saturday Night
Rain and snow likely. Mostly cloudy, with a low around 29. Breezy. Chance of precipitation is 60%.
Sunday
A 40 percent chance of snow. Mostly cloudy, with a high near 40. Windy.
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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:
9:44 am CDT Mar 9, 2026
Forecast Valid:
11am CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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