Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Freezing Fog and Windy
20°F
-7°C
| Humidity | 92% |
| Wind Speed | NW 40 G 53 mph |
| Barometer | 29.84 in (1011.7 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 0.50 mi |
| Wind Chill | -1°F (-18°C) |
| Last update | 15 Mar 9:53 pm CDT |
Extended Forecast for
Thornton IA
Cold Weather Advisory March 16, 01:00am until March 16, 10:00am
Blizzard Warning March 15, 10:08pm until March 16, 07:00am
High Wind Warning March 15, 10:08pm until March 16, 04:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 1 °F
Snow Likely
and Blowing
SnowMonday

High: 10 °F
Blowing Snow
and WindyMonday Night
Low: -2 °F
Patchy
Blowing Snow
and Windy
then Mostly
ClearTuesday
High: 25 °F
Mostly Sunny
then Chance
SnowTuesday Night

Low: 19 °F
Snow Likely
Wednesday

High: 42 °F
Mostly Sunny
Wednesday Night

Low: 32 °F
Partly Cloudy
Thursday

High: 48 °F
Mostly Sunny
Detailed Forecast
Tonight
Snow likely, mainly before 11pm. Widespread blowing snow. Cloudy, with a low around 1. Wind chill values as low as -20. Very windy, with a north northwest wind 37 to 41 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.
Monday
Widespread blowing snow, mainly before noon. Partly sunny and cold, with a high near 10. Wind chill values as low as -25. Windy, with a northwest wind 26 to 33 mph, with gusts as high as 39 mph.
Monday Night
Patchy blowing snow before 7pm. Partly cloudy, with a low around -2. Wind chill values as low as -15. Windy, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.
Tuesday
A 30 percent chance of snow after 1pm. Partly sunny, with a high near 25. Wind chill values as low as -15. Light and variable wind becoming south 8 to 13 mph in the afternoon. New snow accumulation of less than one inch possible.
Tuesday Night
Snow likely before 1am. Mostly cloudy, with a low around 19. South southeast wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 66.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Partly sunny, with a high near 55. Breezy.
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
9:58 pm CDT Mar 15, 2026
10pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026



