Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Fair and Breezy
14°F
-10°C
| Humidity | 71% |
| Wind Speed | NW 23 G 32 mph |
| Barometer | 30.33 in (1029.0 mb) |
| Dewpoint | 6°F (-14°C) |
| Visibility | 10.00 mi |
| Wind Chill | -5°F (-21°C) |
| Last update | 21 Feb 7:53 pm CST |
Extended Forecast for
Clear Lake IA
Tonight

Low: 8 °F
Chance
Flurries and
WindySunday

High: 17 °F
Chance
Flurries and
WindySunday Night
Low: 3 °F
Mostly Cloudy
and Blustery
then Partly
CloudyMonday

High: 22 °F
Sunny
Monday Night

Low: 12 °F
Partly Cloudy
Tuesday

High: 43 °F
Partly Sunny
Tuesday Night

Low: 20 °F
Mostly Cloudy
Wednesday
High: 34 °F
Partly Sunny
then Slight
Chance SnowWednesday Night

Low: 15 °F
Chance Snow
Detailed Forecast
Tonight
A chance of flurries. Mostly cloudy, with a low around 8. Wind chill values as low as -10. Windy, with a north northwest wind 17 to 21 mph, with gusts as high as 26 mph.
Sunday
A chance of flurries before 8am. Partly sunny, with a high near 17. Wind chill values as low as -10. Windy, with a north northwest wind 21 to 24 mph, with gusts as high as 31 mph.
Sunday Night
Partly cloudy, with a low around 3. Wind chill values as low as -10. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 22. Wind chill values as low as -10. North northwest wind 5 to 9 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 12. South wind 6 to 11 mph.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 34.
Wednesday Night
A 30 percent chance of snow. Partly cloudy, with a low around 15.
Thursday
Sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 35. Breezy.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Clear Lake IA
43.15°N 93.37°W
43.15°N 93.37°W
7:32 pm CST Feb 21, 2026
8pm CST Feb 21, 2026-6pm CST Feb 28, 2026


