Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Mostly Cloudy and Windy
19°F
-7°C
| Humidity | 74% |
| Wind Speed | N 29 G 40 mph |
| Barometer | 30.04 in (1018.1 mb) |
| Dewpoint | 12°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 0°F (-18°C) |
| Last update | 14 Jan 6:53 am CST |
Extended Forecast for
Thornton IA
Today

High: 22 °F
Sunny and
WindyTonight

Low: 9 °F
Mostly Clear
Thursday

High: 32 °F
Chance Snow
and BreezyThursday Night

Low: 30 °F
Chance Snow
and WindyFriday

High: 30 °F
Chance Snow
and Patchy
Blowing SnowFriday Night

Low: 3 °F
Mostly Cloudy
and WindySaturday

High: 7 °F
Cold and
WindySaturday Night

Low: -3 °F
Mostly Cloudy
Sunday
High: 17 °F
Partly Sunny
then Partly
Sunny and
Breezy
Detailed Forecast
Today
Sunny, with a high near 22. Wind chill values as low as zero. Windy, with a north northwest wind 23 to 28 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Tonight
Mostly clear, with a low around 9. North northwest wind 9 to 14 mph becoming light west northwest after midnight.
Thursday
A 40 percent chance of snow. Partly sunny, with a high near 32. Wind chill values as low as 5. Breezy, with a light southwest wind becoming south southwest 11 to 16 mph in the morning. Winds could gust as high as 21 mph. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a steady temperature around 30. Windy, with a southwest wind 13 to 21 mph becoming west northwest after midnight. Winds could gust as high as 24 mph. Little or no snow accumulation expected.
Friday
A 40 percent chance of snow. Patchy blowing snow after 3pm. Mostly cloudy, with a high near 30. Windy, with a northwest wind 21 to 28 mph, with gusts as high as 33 mph. Little or no snow accumulation expected.
Friday Night
Mostly cloudy, with a low around 3. Windy.
Saturday
Partly sunny and cold, with a high near 7. Windy.
Saturday Night
Mostly cloudy, with a low around -3.
Sunday
Partly sunny, with a high near 17. Breezy.
Sunday Night
Mostly cloudy, with a low around 3. Blustery.
M.L.King Day
Partly sunny, with a high near 14. Blustery.
Monday Night
Partly cloudy, with a low around 1.
Tuesday
Partly sunny, with a high near 15.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Thornton IA
42.95°N 93.37°W
42.95°N 93.37°W
5:42 am CST Jan 14, 2026
7am CST Jan 14, 2026-6pm CST Jan 20, 2026



