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.

Fair

40°F

4°C

Humidity 93%
Wind Speed Calm
Barometer 29.80 in (1009.0 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 30 Mar 7:53 am CDT
Extended Forecast for

Chapin IA

  • Today

    Today: Increasing clouds, with a high near 81. Light south wind becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 81 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A slight chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South southwest wind 8 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 10am, then a slight chance of showers. Partly sunny, with a temperature falling to around 53 by noon. Windy, with a west wind 11 to 16 mph becoming north northwest 18 to 23 mph in the morning. Winds could gust as high as 32 mph. Chance of precipitation is 30%.

    High: 60 °F⇓

    Chance
    Showers and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. Blustery, with a north wind 14 to 20 mph, with gusts as high as 24 mph.

    Low: 31 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Rain likely, possibly mixed with snow showers, mainly after 1pm. Mostly cloudy, with a high near 42. Breezy, with an east wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Mostly Cloudy
    then
    Rain/Snow
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain and snow showers, becoming all snow after 1am. Low around 30. Blustery. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 30 °F

    Rain/Snow and
    Blustery

  • Thursday

    Thursday: Rain or freezing rain, becoming all rain after 1pm. High near 41. Breezy. Chance of precipitation is 80%.

    High: 41 °F

    Rain/Freezing
    Rain and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 49. Breezy.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Rain and
    Breezy

Detailed Forecast

Today
Increasing clouds, with a high near 81. Light south wind becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph.
Tonight
A slight chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South southwest wind 8 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms before 10am, then a slight chance of showers. Partly sunny, with a temperature falling to around 53 by noon. Windy, with a west wind 11 to 16 mph becoming north northwest 18 to 23 mph in the morning. Winds could gust as high as 32 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 31. Blustery, with a north wind 14 to 20 mph, with gusts as high as 24 mph.
Wednesday
Rain likely, possibly mixed with snow showers, mainly after 1pm. Mostly cloudy, with a high near 42. Breezy, with an east wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow showers, becoming all snow after 1am. Low around 30. Blustery. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain or freezing rain, becoming all rain after 1pm. High near 41. Breezy. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 30.
Friday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 49. Breezy.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 36. Breezy. Chance of precipitation is 70%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 46. Windy.
Saturday Night
Mostly cloudy, with a low around 29. Windy.
Sunday
Mostly sunny, with a high near 47. Windy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
5:32 am CDT Mar 30, 2026
Forecast Valid:
9am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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