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

56°F

13°C

Humidity 46%
Wind Speed W 13 mph
Barometer 29.90 in (1012.6 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 15 Feb 1:53 pm CST
Extended Forecast for

Chapin IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 57. West wind around 6 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. South southwest wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 60. West southwest wind 5 to 13 mph becoming east in the afternoon. Winds could gust as high as 18 mph.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. East southeast wind 5 to 9 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. Windy, with an east southeast wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 59 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Partly cloudy, with a low around 43. Windy. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance Rain
    and Windy

  • Wednesday

    Wednesday: A 20 percent chance of rain before noon. Sunny, with a high near 54. Windy.

    High: 54 °F

    Windy. Slight
    Chance Rain
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. Breezy.

    Low: 28 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: A chance of rain and snow after noon. Partly sunny, with a high near 43. Breezy. Chance of precipitation is 30%.

    High: 43 °F

    Partly Sunny
    then Chance
    Rain/Snow and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 57. West wind around 6 mph.
Tonight
Mostly cloudy, with a low around 39. South southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Washington's Birthday
Mostly sunny, with a high near 60. West southwest wind 5 to 13 mph becoming east in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 38. East southeast wind 5 to 9 mph.
Tuesday
Partly sunny, with a high near 59. Windy, with an east southeast wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 31 mph.
Tuesday Night
A 40 percent chance of rain. Partly cloudy, with a low around 43. Windy. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 20 percent chance of rain before noon. Sunny, with a high near 54. Windy.
Wednesday Night
Mostly clear, with a low around 28. Breezy.
Thursday
A chance of rain and snow after noon. Partly sunny, with a high near 43. Breezy. Chance of precipitation is 30%.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22. Blustery.
Friday
A 30 percent chance of snow. Partly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
10:47 am CST Feb 15, 2026
Forecast Valid:
2pm CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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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