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National Weather Service Flood Inundation Mapping Available for Iowa in September 2025

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fair

66°F

19°C

Humidity	64%
Wind Speed	S 9 mph
Barometer	29.85 in
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	16 Oct 8:55 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Nemaha IA

Tonight
Low: 62 °F
Mostly Cloudy
Friday
High: 75 °F
Chance
Showers
Friday Night
Low: 47 °F
Mostly Clear
Saturday
High: 68 °F
Increasing
Clouds
Saturday Night
Low: 39 °F
Partly Cloudy
Sunday
High: 63 °F
Sunny
Sunday Night
Low: 47 °F
Clear
Monday
High: 68 °F
Sunny
Monday Night
Low: 42 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, with a low around 62. South wind 13 to 15 mph, with gusts as high as 23 mph.

Friday

A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 75. West southwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Friday Night

Mostly clear, with a low around 47. West southwest wind around 6 mph.

Saturday

Increasing clouds, with a high near 68. West southwest wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

Saturday Night

Partly cloudy, with a low around 39. Northwest wind 11 to 14 mph, with gusts as high as 21 mph.

Sunday

Sunny, with a high near 63.

Sunday Night

Clear, with a low around 47.

Monday

Sunny, with a high near 68.