Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Light Snow Fog/Mist
14°F
-10°C
| Humidity | 88% |
| Wind Speed | S 6 mph |
| Barometer | 30.04 in (1019.4 mb) |
| Dewpoint | 11°F (-12°C) |
| Visibility | 2.50 mi |
| Wind Chill | 5°F (-15°C) |
| Last update | 20 Jan 9:53 pm CST |
Extended Forecast for
Thornton IA
Extreme Cold Watch January 23, 12:00am until January 24, 12:00pm
Winter Weather Advisory January 20, 10:24pm until January 21, 03:00am
NOW until 3:00am Wed
Winter Weather Advisory
Tonight
Low: 9 °F
Snow Likely
then Slight
Chance SnowWednesday
High: 28 °F
Snow Likely
and Areas
Blowing SnowWednesday Night
Low: 2 °F
Areas Blowing
Snow and
Windy then
Partly CloudyThursday
High: 13 °F
Mostly Sunny
Thursday Night
Low: -18 °F
Partly Cloudy
Friday
High: -9 °F
Cold
Friday Night
Low: -17 °F
Mostly Cloudy
Saturday
High: 0 °F
Cold
Detailed Forecast
Tonight
Snow likely before 1am, then a chance of flurries between 1am and 3am. Mostly cloudy, with a low around 9. Wind chill values as low as zero. Light and variable wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Snow likely, mainly between noon and 4pm. Areas of blowing snow after noon. Increasing clouds, with a high near 28. Wind chill values as low as -5. Windy, with a west southwest wind 8 to 18 mph increasing to 19 to 29 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday Night
Areas of blowing snow before midnight. Partly cloudy, with a low around 2. Wind chill values as low as -10. Windy, with a west northwest wind 19 to 29 mph decreasing to 9 to 19 mph after midnight. Winds could gust as high as 38 mph.
Thursday
Mostly sunny, with a high near 13. Wind chill values as low as -10. West wind 9 to 14 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around -18. North northwest wind 11 to 13 mph.
Friday
Mostly sunny and cold, with a high near -9.
Friday Night
Mostly cloudy, with a low around -17.
Saturday
Partly sunny and cold, with a high near 0.
Saturday Night
Mostly cloudy, with a low around -11.
Sunday
Mostly sunny and cold, with a high near 3.
Sunday Night
Partly cloudy, with a low around -9.
Monday
Sunny, with a high near 15.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
Mostly sunny, with a high near 19.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Thornton IA
42.95°N 93.37°W
42.95°N 93.37°W
10:16 pm CST Jan 20, 2026
10pm CST Jan 20, 2026-6pm CST Jan 27, 2026
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