Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Light Snow
7°F
-14°C
| Humidity | 80% |
| Wind Speed | W 20 G 29 mph |
| Barometer | 29.81 in (1011.1 mb) |
| Dewpoint | 2°F (-17°C) |
| Visibility | 1.75 mi |
| Wind Chill | -13°F (-25°C) |
| Last update | 17 Jan 1:53 am CST |
Extended Forecast for
Thornton IA
Overnight

Low: 6 °F
Snow and
BlusterySaturday
High: 9 °F
Windy. Snow
Likely then
Slight Chance
SnowSaturday Night
Low: 2 °F
Mostly Cloudy
and Blustery
then Slight
Chance SnowSunday
High: 20 °F
Snow Likely
and Breezy
then Chance
Snow and
WindySunday Night

Low: -5 °F
Mostly Cloudy
and WindyM.L.King Day

High: 8 °F
Cold and
BlusteryMonday Night

Low: -2 °F
Mostly Clear
Tuesday

High: 23 °F
Mostly Sunny
Tuesday Night

Low: 14 °F
Mostly Cloudy
Detailed Forecast
Overnight
Snow. Low around 6. Wind chill values as low as -15. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before noon. Mostly cloudy and cold, with a high near 9. Wind chill values as low as -15. Windy, with a northwest wind 20 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
A 20 percent chance of snow after 5am. Mostly cloudy, with a low around 2. Wind chill values as low as -15. Blustery, with a northwest wind 7 to 17 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Sunday
Snow likely, mainly before noon. Mostly cloudy, with a high near 20. Wind chill values as low as -10. Windy, with a south southwest wind 11 to 21 mph becoming northwest 21 to 31 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around -5. Windy, with a northwest wind 26 to 31 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 38 mph.
M.L.King Day
Mostly sunny and cold, with a high near 8. Blustery.
Monday Night
Mostly clear, with a low around -2.
Tuesday
Mostly sunny, with a high near 23.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 21. Blustery.
Wednesday Night
Mostly cloudy, with a low around 5.
Thursday
Mostly sunny, with a high near 17.
Thursday Night
Mostly cloudy, with a low around 4.
Friday
Partly sunny, with a high near 18.
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
2:36 am CST Jan 17, 2026
2am CST Jan 17, 2026-6pm CST Jan 23, 2026



