Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Overcast with Haze and Breezy
2°F
-17°C
| Humidity | 76% |
| Wind Speed | NW 21 G 29 mph |
| Barometer | 30.15 in (1023.4 mb) |
| Dewpoint | -4°F (-20°C) |
| Visibility | 6.00 mi |
| Wind Chill | -20°F (-29°C) |
| Last update | 17 Jan 5:53 pm CST |
Extended Forecast for
Chapin IA
Cold Weather Advisory January 18, 09:00pm until January 19, 12:00pm
Tonight
Low: 2 °F
Mostly Cloudy
and Blustery
then Mostly
CloudySunday

High: 20 °F
Chance Snow
and Patchy
Blowing SnowSunday Night

Low: -6 °F
Patchy
Blowing Snow
and WindyM.L.King Day
High: 7 °F
Blustery.
Patchy
Blowing Snow
then Mostly
SunnyMonday Night

Low: -1 °F
Partly Cloudy
Tuesday

High: 22 °F
Mostly Sunny
Tuesday Night
Low: 13 °F
Chance Snow
then Mostly
CloudyWednesday

High: 22 °F
Partly Sunny
and BlusteryWednesday Night

Low: 5 °F
Partly Cloudy
Detailed Forecast
Tonight
A chance of flurries after 4am. Mostly cloudy, with a low around 2. Wind chill values as low as -15. Blustery, with a northwest wind 7 to 16 mph becoming south southwest after midnight. Winds could gust as high as 28 mph.
Sunday
A 50 percent chance of snow, mainly after 7am. Patchy blowing snow after 1pm. Mostly cloudy, with a high near 20. Wind chill values as low as -10. Windy, with a south southwest wind 9 to 14 mph becoming northwest 21 to 31 mph. Winds could gust as high as 41 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Patchy blowing snow. Mostly cloudy, with a low around -6. Wind chill values as low as -30. Windy, with a northwest wind 21 to 31 mph, with gusts as high as 43 mph.
M.L.King Day
Patchy blowing snow before 7am. Mostly sunny and cold, with a high near 7. Wind chill values as low as -30. Blustery, with a west northwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Partly cloudy, with a low around -1. West southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 22. Blustery.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Mostly sunny, with a high near 22.
Thursday Night
Mostly cloudy, with a low around 7.
Friday
Partly sunny, with a high near 16.
Friday Night
Mostly cloudy, with a low around -5.
Saturday
Mostly cloudy and cold, with a high near 4.
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
5:11 pm CST Jan 17, 2026
6pm CST Jan 17, 2026-6pm CST Jan 24, 2026



