Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Partly Cloudy
50°F
10°C
| Humidity | 77% |
| Wind Speed | SE 12 mph |
| Barometer | 29.90 in (1012.7 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 5 Mar 2:53 pm CST |
Extended Forecast for
Thornton IA
This Afternoon

High: 52 °F
Mostly Cloudy
Tonight
Low: 43 °F
Mostly Cloudy
then ShowersFriday

High: 63 °F
Showers
Friday Night
Low: 29 °F
Blustery.
Showers then
Chance
Rain/Freezing
RainSaturday
High: 44 °F
Partly Sunny
and Breezy
then SunnySaturday Night
Low: 34 °F
Clear then
Mostly Clear
and BreezySunday

High: 62 °F
Sunny and
WindySunday Night

Low: 45 °F
Mostly Clear
and BreezyMonday

High: 64 °F
Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 52. South southeast wind 7 to 9 mph.
Tonight
A chance of showers and thunderstorms between 2am and 3am, then showers and possibly a thunderstorm after 3am. Low around 43. Southeast wind 9 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 63. Southeast wind 13 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain showers before 3am, then a chance of freezing rain. Some thunder is also possible. Low around 29. Blustery, with a west southwest wind 13 to 20 mph becoming northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 100%. Little or no ice accumulation expected.
Saturday
Mostly sunny, with a high near 44. Breezy, with a northwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 34. Breezy.
Sunday
Sunny, with a high near 62. Windy.
Sunday Night
Mostly clear, with a low around 45. Breezy.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 42.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 66. Breezy.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 34. Windy. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 45. Windy.
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
1:37 pm CST Mar 5, 2026
3pm CST Mar 5, 2026-6pm CDT Mar 11, 2026



