Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Fog
33°F
1°C
| Humidity | 100% |
| Wind Speed | SE 16 mph |
| Barometer | 29.81 in (1010.2 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 0.50 mi |
| Wind Chill | 23°F (-5°C) |
| Last update | 27 Dec 4:53 am CST |
Extended Forecast for
Mason City IA
Winter Storm Watch December 28, 06:00am until December 29, 06:00am
Dense Fog Advisory December 27, 05:16am until December 27, 12:00pm
NOW until 12:00pm Sat

Dense Fog Advisory
Today

High: 43 °F
Dense Fog
Tonight
Low: 34 °F
Areas Dense
Fog then
Chance Rain
and Areas FogSunday

High: 35 °F⇓
Wintry Mix
and Patchy
Blowing SnowSunday Night

Low: 4 °F
Snow Likely
and Blowing
SnowMonday
High: 10 °F
Slight Chance
Snow and
Areas Blowing
SnowMonday Night

Low: 3 °F
Mostly Clear
Tuesday

High: 28 °F
Partly Sunny
Tuesday Night

Low: 15 °F
Mostly Cloudy
Detailed Forecast
Today
Widespread dense fog, mainly before 10am. Otherwise, cloudy, with a high near 43. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of rain after 5am. Areas of dense fog. Otherwise, cloudy, with a low around 34. Light and variable wind becoming north northwest 5 to 9 mph after midnight.
Sunday
Rain and snow, possibly mixed with sleet before 1pm, then snow, possibly mixed with freezing rain between 1pm and 3pm, then snow after 3pm. Patchy blowing snow after 11am. Areas of fog before 7am. Temperature falling to around 15 by 5pm. Wind chill values as low as -5. Windy, with a northwest wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow and sleet accumulation of 1 to 2 inches possible.
Sunday Night
Snow likely, mainly before midnight. Widespread blowing snow, mainly between 7pm and midnight. Cloudy, with a low around 4. Wind chill values as low as -20. Windy, with a northwest wind 28 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday
A 20 percent chance of snow before noon. Areas of blowing snow before noon. Partly sunny and cold, with a high near 10. Windy, with a northwest wind 17 to 26 mph, with gusts as high as 36 mph.
Monday Night
Mostly clear, with a low around 3.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 15.
Wednesday
Mostly cloudy, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around -1.
New Year's Day
Sunny and cold, with a high near 7.
Thursday Night
Mostly clear, with a low around -4.
Friday
Mostly sunny, with a high near 15.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mason City IA
43.15°N 93.19°W
43.15°N 93.19°W
3:46 am CST Dec 27, 2025
5am CST Dec 27, 2025-6pm CST Jan 2, 2026



