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Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

65°F

18°C

Humidity 63%
Wind Speed NW 12 mph
Barometer 30.11 in (1018.7 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Sep 1:53 pm CDT
Extended Forecast for

Clear Lake IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 69. North northwest wind 7 to 9 mph.

    High: 69 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. Calm wind becoming northeast around 5 mph after midnight.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. East southeast wind 6 to 9 mph.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 59. Southeast wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 73. Light northeast wind. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 60. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 74. Breezy. Chance of precipitation is 90%.

    High: 74 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 72.

    High: 72 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 69. North northwest wind 7 to 9 mph.
Tonight
Mostly cloudy, with a low around 52. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 69. East southeast wind 6 to 9 mph.
Wednesday Night
A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 59. Southeast wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 73. Light northeast wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 60. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 74. Breezy. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 90%.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 72.
Saturday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 67.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Monday
Mostly cloudy, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IA
 43.13°N 93.37°W
Last Update:
1:27 pm CDT Sep 15, 2026
Forecast Valid:
2pm CDT Sep 15, 2026-6pm CDT Sep 21, 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