Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fair

79°F

26°C

Humidity 45%
Wind Speed NW 9 mph
Barometer 30.13 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Aug 2:55 pm CDT
Extended Forecast for

Nemaha IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am.  Mostly cloudy, with a low around 66. South wind 7 to 11 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: 66 °F

    Partly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm.  Mostly sunny, with a high near 88. Breezy, with a south southeast wind 13 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 90.

    High: 90 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 82. Calm wind.
Tonight
Mostly clear, with a low around 57. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 66. South wind 7 to 11 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.
Saturday
Showers likely and possibly a thunderstorm before 1pm. Mostly sunny, with a high near 88. Breezy, with a south southeast wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 74.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
Monday
Partly sunny, with a high near 90.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Nemaha IA
 42.5°N 95.09°W
2:01 pm CDT Aug 27, 2026
3pm CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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