Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Overcast
4°F
-16°C
| Humidity | 69% |
| Wind Speed | W 13 mph |
| Barometer | 30.26 in (1027.6 mb) |
| Dewpoint | -4°F (-20°C) |
| Visibility | 8.00 mi |
| Wind Chill | -13°F (-25°C) |
| Last update | 19 Jan 2:53 pm CST |
Extended Forecast for
Chapin IA
M.L.King Day

High: 5 °F
Cold
Tonight

Low: -3 °F
Gradual
ClearingTuesday
High: 17 °F
Sunny then
Slight Chance
SnowTuesday Night
Low: 11 °F
Snow then
Chance SnowWednesday
High: 28 °F
Mostly Sunny
then Chance
Snow and
BreezyWednesday Night
Low: 4 °F
Partly Cloudy
and Blustery
then Partly
CloudyThursday

High: 15 °F
Mostly Sunny
Thursday Night

Low: -16 °F
Partly Cloudy
Friday

High: -9 °F
Cold
Detailed Forecast
M.L.King Day
Partly sunny and cold, with a steady temperature around 5. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around -3. Wind chill values as low as -10. West wind 3 to 8 mph.
Tuesday
A 20 percent chance of snow after 3pm. Increasing clouds, with a high near 17. Wind chill values as low as -10. Light and variable wind becoming south 5 to 9 mph in the morning.
Tuesday Night
Snow, mainly before midnight. Low around 11. Wind chill values as low as zero. South southeast wind 5 to 9 mph becoming northwest after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 28. Breezy, with a west southwest wind 10 to 18 mph, with gusts as high as 23 mph. Little or no snow accumulation expected.
Wednesday Night
Partly cloudy, with a low around 4. Blustery.
Thursday
Mostly sunny, with a high near 15.
Thursday Night
Partly cloudy, with a low around -16.
Friday
Mostly sunny and cold, with a high near -9.
Friday Night
Mostly cloudy, with a low around -20.
Saturday
Mostly sunny and cold, with a high near -3.
Saturday Night
Partly cloudy, with a low around -13.
Sunday
Mostly sunny and cold, with a high near 9.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Chapin IA
42.84°N 93.23°W
42.84°N 93.23°W
3:16 pm CST Jan 19, 2026
3pm CST Jan 19, 2026-6pm CST Jan 25, 2026



