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

60°F

16°C

Humidity 96%
Wind Speed SW 14 mph
Barometer 29.73 in (1005.8 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 13 Apr 1:53 am CDT
Extended Forecast for

Chapin IA

  • Overnight

    Overnight: Partly cloudy, with a low around 56. Southwest wind 7 to 10 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms between 1pm and 3pm. Partly sunny, with a high near 78. Windy, with a south wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 20%.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Windy

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly between 9pm and 1am. Partly cloudy, with a low around 56. Breezy, with a south wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 24 mph.

    Low: 56 °F

    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. West southwest wind 6 to 9 mph becoming south in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northeast wind 6 to 9 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Thursday

    Thursday: A slight chance of thunderstorms before 7am. Sunny, with a high near 74. Chance of precipitation is 10%.

    High: 74 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. Southwest wind 7 to 10 mph.
Monday
A slight chance of showers and thunderstorms between 1pm and 3pm. Partly sunny, with a high near 78. Windy, with a south wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly between 9pm and 1am. Partly cloudy, with a low around 56. Breezy, with a south wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 24 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. West southwest wind 6 to 9 mph becoming south in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northeast wind 6 to 9 mph. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
A slight chance of thunderstorms before 7am. Sunny, with a high near 74. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 56.
Friday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 78. Windy. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 37. Windy.
Saturday
Partly sunny, with a high near 50. Windy.
Saturday Night
Mostly cloudy, with a low around 30. Blustery.
Sunday
Sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
1:26 am CDT Apr 13, 2026
Forecast Valid:
2am CDT Apr 13, 2026-6pm CDT Apr 19, 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