Hazardous Weather Conditions
Current conditions at
Oelwein Municipal Airport (KOLZ)
Lat: 42.68°NLon: 91.98°WElev: 1070ft.
Fog
34°F
1°C
| Humidity | 100% |
| Wind Speed | S 8 mph |
| Barometer | 29.92 in |
| Dewpoint | 34°F (1°C) |
| Visibility | 0.25 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 27 Dec 1:15 am CST |
Extended Forecast for
Sumner IA
Dense Fog Advisory December 27, 01:33am until December 27, 12:00pm
NOW until 12:00pm Sat

Dense Fog Advisory
Overnight

Low: 33 °F
Dense Fog
Saturday

High: 44 °F
Dense Fog
Saturday Night
Low: 42 °F
Areas Fog
then CloudySunday
High: 41 °F⇓
Windy. Chance
Rain then
Rain/Snow
LikelySunday Night

Low: 6 °F
Chance Snow
and WindyMonday

High: 14 °F
Partly Sunny
and WindyMonday Night
Low: 5 °F
Mostly Clear
and Blustery
then Mostly
ClearTuesday

High: 28 °F
Partly Sunny
Detailed Forecast
Overnight
Widespread dense fog. Otherwise, mostly cloudy, with a low around 33. South southeast wind 6 to 8 mph.
Saturday
Widespread dense fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 44. South southeast wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Areas of fog before 10pm. Otherwise, cloudy, with a steady temperature around 42. South southeast wind 5 to 10 mph becoming north after midnight.
Sunday
A chance of rain before noon, then rain and snow likely between noon and 3pm, then snow likely after 3pm. Cloudy, with a temperature falling to around 25 by 5pm. Wind chill values as low as 10. Windy, with a northwest wind 11 to 16 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 6. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 41 mph. New snow accumulation of less than one inch possible.
Monday
Partly sunny, with a high near 14. Windy.
Monday Night
Mostly clear, with a low around 5. Blustery.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 21.
Wednesday Night
Mostly cloudy, with a low around 0.
New Year's Day
Sunny and cold, with a high near 10.
Thursday Night
Mostly clear, with a low around -4.
Friday
Mostly sunny, with a high near 16.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Sumner IA
42.85°N 92.1°W
42.85°N 92.1°W
9:51 pm CST Dec 26, 2025
1am CST Dec 27, 2025-6pm CST Jan 2, 2026



