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

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Fair

45°F

7°C

Humidity 87%
Wind Speed E 7 mph
Barometer 30.12 in
Dewpoint 41°F (5°C)
Visibility 9.00 mi
Wind Chill41°F (5°C)
Last update 4 Mar 11:15 am CST
Extended Forecast for

West Union IA

  • Today

    Today: Mostly sunny, with a high near 50. Southeast wind 3 to 6 mph.

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Increasing clouds, with a low around 37. Calm wind becoming northeast around 5 mph after midnight.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 51. Northeast wind around 6 mph becoming southeast in the afternoon.

    High: 51 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Southeast wind 6 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 63. Southeast wind 13 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 33. Breezy, with a southwest wind 13 to 17 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Breezy.
    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Breezy, with a northwest wind 10 to 16 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Breezy, with a southwest wind 10 to 16 mph, with gusts as high as 24 mph.

    Low: 34 °F

    Clear then
    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Breezy, with a southwest wind 14 to 20 mph.

    High: 59 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 50. Southeast wind 3 to 6 mph.
Tonight
A 20 percent chance of showers after 4am. Increasing clouds, with a low around 37. Calm wind becoming northeast around 5 mph after midnight.
Thursday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 51. Northeast wind around 6 mph becoming southeast in the afternoon.
Thursday Night
Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Southeast wind 6 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 63. Southeast wind 13 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 33. Breezy, with a southwest wind 13 to 17 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 47. Breezy, with a northwest wind 10 to 16 mph.
Saturday Night
Mostly clear, with a low around 34. Breezy, with a southwest wind 10 to 16 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 59. Breezy, with a southwest wind 14 to 20 mph.
Sunday Night
Mostly clear, with a low around 40. Southwest wind 11 to 13 mph.
Monday
Sunny, with a high near 67. Breezy, with a southwest wind 11 to 20 mph.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 45. Breezy, with a south wind 14 to 16 mph, with gusts as high as 24 mph.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 59. Breezy, with a south wind 16 to 20 mph becoming west in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Union IA
 42.95°N 91.8°W
Last Update:
9:47 am CST Mar 4, 2026
Forecast Valid:
11am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation