National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Mostly Cloudy

54°F

12°C

Humidity 77%
Wind Speed W 7 mph
Barometer 30.12 in (1019.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 3 Oct 9:53 pm CDT
Extended Forecast for

Clear Lake IA

  • Tonight

    Tonight: Mostly clear, with a low around 46. West southwest wind 6 to 8 mph becoming northwest after midnight.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. North northwest wind around 9 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 42. Light northwest wind.

    Low: 42 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 49. South wind 6 to 11 mph.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 46. West southwest wind 6 to 8 mph becoming northwest after midnight.
Sunday
Sunny, with a high near 66. North northwest wind around 9 mph.
Sunday Night
Clear, with a low around 42. Light northwest wind.
Monday
Sunny, with a high near 67. Calm wind becoming south 5 to 9 mph in the afternoon.
Monday Night
Clear, with a low around 49. South wind 6 to 11 mph.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 74. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IA
 43.13°N 93.37°W
Last Update:
10:43 pm CDT Oct 3, 2026
Forecast Valid:
10pm CDT Oct 3, 2026-6pm CDT Oct 10, 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