Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Fair
1°F
-17°C
| Humidity | 79% |
| Wind Speed | SW 7 mph |
| Barometer | 29.95 in (1016.7 mb) |
| Dewpoint | -4°F (-20°C) |
| Visibility | 10.00 mi |
| Wind Chill | -12°F (-24°C) |
| Last update | 18 Jan 4:53 am CST |
Extended Forecast for
Chapin IA
Cold Weather Advisory January 18, 09:00pm until January 19, 12:00pm
Winter Weather Advisory January 18, 12:00pm until January 18, 09:00pm
Today

High: 19 °F
Chance Snow
and Patchy
Blowing SnowTonight

Low: -5 °F
Slight Chance
Snow and
Patchy
Blowing SnowM.L.King Day

High: 7 °F
Cold and
BlusteryMonday Night

Low: -2 °F
Partly Cloudy
Tuesday

High: 20 °F
Mostly Sunny
Tuesday Night
Low: 13 °F
Slight Chance
Snow then
Mostly CloudyWednesday
High: 23 °F
Partly Sunny
then Slight
Chance Snow
and BlusteryWednesday Night

Low: 4 °F
Partly Cloudy
Thursday

High: 22 °F
Mostly Sunny
Detailed Forecast
Today
A 40 percent chance of snow, mainly between 7am and 5pm. Patchy blowing snow after 2pm. Cloudy, with a high near 19. Wind chill values as low as -10. Windy, with a south southwest wind 8 to 13 mph becoming northwest 20 to 30 mph in the afternoon. Winds could gust as high as 39 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 20 percent chance of snow before 7pm. Patchy blowing snow. Mostly cloudy, with a low around -5. Wind chill values as low as -30. Windy, with a northwest wind 21 to 31 mph, with gusts as high as 40 mph.
M.L.King Day
Mostly sunny and cold, with a high near 7. Wind chill values as low as -30. Blustery, with a northwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Partly cloudy, with a low around -2. Wind chill values as low as -10. West wind around 7 mph.
Tuesday
Mostly sunny, with a high near 20. West southwest wind 6 to 8 mph becoming south southeast in the afternoon.
Tuesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13.
Wednesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 23. Blustery.
Wednesday Night
Partly cloudy, with a low around 4.
Thursday
Mostly sunny, with a high near 22.
Thursday Night
Mostly cloudy, with a low around 8.
Friday
Mostly cloudy, with a high near 15.
Friday Night
Mostly cloudy, with a low around -5.
Saturday
Partly sunny and cold, with a high near 2.
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
4:52 am CST Jan 18, 2026
5am CST Jan 18, 2026-6pm CST Jan 24, 2026



