Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Overcast and Breezy
35°F
2°C
| Humidity | 67% |
| Wind Speed | E 23 G 33 mph |
| Barometer | 29.86 in (1011.7 mb) |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 23°F (-5°C) |
| Last update | 14 Mar 4:53 pm CDT |
Extended Forecast for
Thornton IA
Blizzard Warning March 15, 07:00am until March 16, 07:00am
High Wind Warning March 15, 01:00pm until March 16, 04:00am
Tonight
Low: 31 °F
Slight Chance
Rain and
Breezy then
Rain and
WindySunday
High: 35 °F⇓
Wintry Mix
and Blowing
SnowSunday Night

Low: 3 °F
Snow and
Blowing SnowMonday

High: 10 °F
Blowing Snow
and WindyMonday Night
Low: -1 °F
Patchy
Blowing Snow
and Windy
then Mostly
ClearTuesday
High: 27 °F
Mostly Sunny
then Chance
SnowTuesday Night

Low: 21 °F
Snow Likely
and BreezyWednesday

High: 44 °F
Mostly Sunny
Wednesday Night

Low: 31 °F
Partly Cloudy
Detailed Forecast
Tonight
A chance of rain and thunderstorms, then rain after 4am. Low around 31. Windy, with an east southeast wind 17 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Rain, freezing rain, and sleet before 10am, then snow and sleet likely between 10am and 11am, then snow after 11am. Widespread blowing snow, mainly after 3pm. Temperature falling to around 27 by 5pm. Wind chill values as low as 10. Very windy, with a north wind 22 to 27 mph increasing to 36 to 41 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 1 to 3 inches possible.
Sunday Night
Snow, mainly before 1am. Widespread blowing snow. Low around 3. Wind chill values as low as -20. Very windy, with a northwest wind 36 to 43 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday
Widespread blowing snow, mainly before noon. Cloudy, then gradually becoming mostly sunny and cold, with a high near 10. Wind chill values as low as -25. Windy, with a northwest wind 26 to 31 mph, with gusts as high as 36 mph.
Monday Night
Patchy blowing snow before 7pm. Mostly clear, with a low around -1. Windy, with a northwest wind 16 to 21 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph.
Tuesday
A 30 percent chance of snow after 1pm. Partly sunny, with a high near 27.
Tuesday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 21. Breezy. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 64.
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
3:12 pm CDT Mar 14, 2026
5pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026



