Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Partly Cloudy
51°F
11°C
| Humidity | 89% |
| Wind Speed | N 8 mph |
| Barometer | 29.74 in (1006.8 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 15 Apr 8:53 am CDT |
Extended Forecast for
Thornton IA
Today

High: 69 °F
Chance
T-stormsTonight

Low: 49 °F
Chance
T-storms and
Patchy FogThursday
High: 74 °F
Patchy Fog
then SunnyThursday Night

Low: 54 °F
Mostly Clear
Friday
High: 76 °F
Windy. Slight
Chance
T-storms then
Showers
LikelyFriday Night
Low: 31 °F
Windy. Chance
Showers then
Chance
Rain/SnowSaturday

High: 45 °F
Slight Chance
Rain/Snow and
WindySaturday Night
Low: 28 °F
Partly Cloudy
and Windy
then Partly
CloudySunday

High: 52 °F
Sunny
Detailed Forecast
Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 69. Northeast wind 3 to 8 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 49. East northeast wind 5 to 7 mph becoming north after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 74. Northwest wind 5 to 11 mph becoming south southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 54. South wind 10 to 14 mph, with gusts as high as 20 mph.
Friday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Windy, with a south southeast wind 15 to 24 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of rain showers before 4am, then a slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 31. Windy. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A slight chance of rain and snow showers before 1pm, then a slight chance of snow showers. Mostly sunny, with a high near 45. Windy. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 28. Windy.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 67. Breezy.
Monday Night
Mostly clear, with a low around 46. Breezy.
Tuesday
Sunny, with a high near 71. 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
8:57 am CDT Apr 15, 2026
9am CDT Apr 15, 2026-6pm CDT Apr 21, 2026



