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.

Mostly Cloudy

40°F

4°C

Humidity 89%
Wind Speed E 3 mph
Barometer 30.10 in (1019.9 mb)
Dewpoint 37°F (3°C)
Visibility 7.00 mi
Last update 4 Mar 11:53 am CST
Extended Forecast for

Chapin IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 49. Southeast wind 3 to 5 mph.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog before midnight, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 37. Light east wind.

    Low: 37 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 55. Calm wind becoming southeast 5 to 9 mph in the afternoon.

    High: 55 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm after midnight. Low around 43. Southeast wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 43 °F

    Mostly Cloudy
    then Rain

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 63. Breezy, with a southeast wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 31. Blustery. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 31 °F

    Blustery.
    Showers
    Likely then
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 48. Breezy.

    High: 48 °F

    Sunny and
    Breezy then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Breezy.

    Low: 36 °F

    Clear then
    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 61. Windy.

    High: 61 °F

    Mostly Sunny
    and Windy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 49. Southeast wind 3 to 5 mph.
Tonight
Patchy fog before midnight, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 37. Light east wind.
Thursday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 55. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Thursday Night
Rain and possibly a thunderstorm after midnight. Low around 43. Southeast wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 63. Breezy, with a southeast wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 31. Blustery. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Sunny, with a high near 48. Breezy.
Saturday Night
Mostly clear, with a low around 36. Breezy.
Sunday
Mostly sunny, with a high near 61. Windy.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 69. Windy.
Monday Night
Mostly clear, with a low around 44. Breezy.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 60. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
11:26 am CST Mar 4, 2026
Forecast Valid:
12pm CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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