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

Hazardous Weather Conditions

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fog/Mist

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 29.83 in
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 15 Sep 1:15 am CDT
Extended Forecast for

Nemaha IA

  • Overnight

    Overnight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 61. Southwest wind 6 to 8 mph becoming west northwest. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 7am. Mostly cloudy, with a high near 71. North northwest wind 3 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. Calm wind becoming east around 5 mph after midnight.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 71. East wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely after 1am. Cloudy, with a low around 60. Light southeast wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 79. New precipitation amounts of less than a tenth of an inch possible.

    High: 79 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

    High: 82 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 65. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

Detailed Forecast

Overnight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 61. Southwest wind 6 to 8 mph becoming west northwest. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 30 percent chance of showers before 7am. Mostly cloudy, with a high near 71. North northwest wind 3 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Partly cloudy, with a low around 53. Calm wind becoming east around 5 mph after midnight.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 71. East wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely after 1am. Cloudy, with a low around 60. Light southeast wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 79. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Friday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 65. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 78.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 71.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nemaha IA
 42.5°N 95.09°W
Last Update:
12:11 am CDT Sep 15, 2026
Forecast Valid:
1am CDT Sep 15, 2026-6pm CDT Sep 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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