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

Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fair

77°F

25°C

Humidity 26%
Wind Speed NW 10 mph
Barometer 30.00 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 7 Oct 3:15 pm CDT
Extended Forecast for

Sac City IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. North northwest wind around 8 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 51. West northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 73. Calm wind.

    High: 73 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 56. Calm wind becoming southeast around 5 mph after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 81. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Windy.

    High: 82 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 77. North northwest wind around 8 mph.
Tonight
Partly cloudy, with a low around 51. West northwest wind around 5 mph becoming calm in the evening.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 73. Calm wind.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 56. Calm wind becoming southeast around 5 mph after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 81. South wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 65.
Saturday
Sunny, with a high near 82. Windy.
Saturday Night
Clear, with a low around 62.
Sunday
Sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 56.
Columbus Day
Mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sac City IA
 42.42°N 95°W
Last Update:
2:32 pm CDT Oct 7, 2026
Forecast Valid:
3pm CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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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