National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Fog/Mist

32°F

0°C

Humidity 100%
Wind Speed NE 6 mph
Barometer 30.20 in
Dewpoint 32°F (0°C)
Visibility 5.00 mi
Wind Chill26°F (-3°C)
Last update 4 Mar 1:15 am CST
Extended Forecast for

4 Miles N Sumner IA

Dense Fog Advisory until March 4, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until March 4, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 32 °F

    Areas
    Freezing Fog

  • Wednesday

    Wednesday: Areas of freezing fog before 9am. Mostly sunny, with a high near 49. East southeast wind 3 to 6 mph.

    High: 49 °F

    Areas
    Freezing Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 4am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 37. East wind 3 to 6 mph.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 52. Northeast wind around 7 mph becoming southeast in the afternoon.

    High: 52 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 43. Southeast wind 7 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Mostly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain and possibly a thunderstorm. High near 63. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm before midnight, then a chance of rain. Low around 33. Breezy. Chance of precipitation is 80%.

    Low: 33 °F

    Breezy. Rain
    then Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 47. Breezy.

    High: 47 °F

    Mostly Sunny
    and Breezy
    then Sunny

Detailed Forecast

Overnight
Areas of freezing fog. Partly cloudy, with a steady temperature around 32. Calm wind becoming northeast around 5 mph.
Wednesday
Areas of freezing fog before 9am. Mostly sunny, with a high near 49. East southeast wind 3 to 6 mph.
Wednesday Night
A 20 percent chance of rain after 4am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 37. East wind 3 to 6 mph.
Thursday
A 20 percent chance of rain before noon. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 52. Northeast wind around 7 mph becoming southeast in the afternoon.
Thursday Night
Rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 43. Southeast wind 7 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Rain and possibly a thunderstorm. High near 63. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Rain and possibly a thunderstorm before midnight, then a chance of rain. Low around 33. Breezy. Chance of precipitation is 80%.
Saturday
Sunny, with a high near 47. Breezy.
Saturday Night
Mostly clear, with a low around 34. Breezy.
Sunday
Mostly sunny, with a high near 59. Windy.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 67. Breezy.
Monday Night
Mostly clear, with a low around 44. Breezy.
Tuesday
A 50 percent chance of rain. Partly sunny, with a high near 59. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sumner IA
 42.89°N 92.07°W
Last Update:
12:26 am CST Mar 4, 2026
Forecast Valid:
1am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation