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

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fair

64°F

18°C

Humidity 94%
Wind Speed NE 5 mph
Barometer 29.81 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 May 2:15 am CDT
Extended Forecast for

2 Miles NNE West Union IA

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 62. East wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 5pm. Cloudy, with a high near 80. Breezy, with an east wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Breezy.
    Showers
    Likely then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 64. Breezy, with a south wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Breezy.
    Chance
    T-storms then
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 80. Breezy, with a south wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 56. Breezy, with a south wind 15 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 56 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. Breezy, with a northwest wind 18 to 20 mph.

    High: 64 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. North wind 7 to 11 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. North wind around 6 mph becoming east after midnight.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 62. East wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 5pm. Cloudy, with a high near 80. Breezy, with an east wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 64. Breezy, with a south wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 80. Breezy, with a south wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm. Low around 56. Breezy, with a south wind 15 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Mostly cloudy, with a high near 64. Breezy, with a northwest wind 18 to 20 mph.
Tuesday Night
Mostly cloudy, with a low around 43. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 60. North wind 7 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 41. North wind around 6 mph becoming east after midnight.
Thursday
Mostly sunny, with a high near 63. East wind 8 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 45. Southeast wind around 9 mph.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 69. Southeast wind around 9 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 49. Southeast wind around 8 mph.
Saturday
Mostly sunny, with a high near 75. Southeast wind 8 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE West Union IA
 42.98°N 91.8°W
Last Update:
1:26 am CDT May 17, 2026
Forecast Valid:
2am CDT May 17, 2026-6pm CDT May 23, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation