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.

Overcast

19°F

-7°C

Humidity 81%
Wind Speed SW 10 mph
Barometer 30.15 in (1022.9 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 30 Dec 8:53 am CST
Extended Forecast for

Chapin IA

  • Today

    Today: A slight chance of snow before 10am, then a chance of flurries between 10am and 2pm. Mostly cloudy, with a high near 32. Wind chill values as low as 10. West southwest wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 32 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Northwest wind around 11 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of flurries before noon, then a slight chance of snow after noon. Mostly cloudy, with a temperature rising to near 28 by noon, then falling to around 21 during the remainder of the day. Northwest wind around 11 mph. Chance of precipitation is 20%.

    High: 28 °F⇓

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Wind chill values as low as -5. North wind 5 to 10 mph.

    Low: 4 °F

    Decreasing
    Clouds

  • New Year's Day

    New Year's Day: Sunny, with a high near 18. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 18 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of snow before 10am, then a chance of flurries between 10am and 2pm. Mostly cloudy, with a high near 32. Wind chill values as low as 10. West southwest wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 23. Northwest wind around 11 mph.
Wednesday
A chance of flurries before noon, then a slight chance of snow after noon. Mostly cloudy, with a temperature rising to near 28 by noon, then falling to around 21 during the remainder of the day. Northwest wind around 11 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Wind chill values as low as -5. North wind 5 to 10 mph.
New Year's Day
Sunny, with a high near 18. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
8:47 am CST Dec 30, 2025
Forecast Valid:
9am CST Dec 30, 2025-6pm CST Jan 5, 2026
 
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Additional Resources

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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