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

73°F

23°C

Humidity 31%
Wind Speed N 9 mph
Barometer 30.04 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 7 Oct 12:15 pm CDT
Extended Forecast for

Sac City IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 76. North northwest wind around 8 mph.

    High: 76 °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: Mostly sunny, with a high near 72. Calm wind.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 54. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 79. South wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Windy.

    High: 81 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 76. 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
Mostly sunny, with a high near 72. Calm wind.
Thursday Night
A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 54. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 79. South wind 6 to 9 mph, with gusts as high as 18 mph.
Friday Night
Clear, with a low around 63.
Saturday
Sunny, with a high near 81. Windy.
Saturday Night
Clear, with a low around 63.
Sunday
Sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 59.
Columbus Day
Partly sunny, with a high near 71.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 51.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sac City IA
 42.42°N 95°W
Last Update:
11:36 am CDT Oct 7, 2026
Forecast Valid:
1pm CDT Oct 7, 2026-6pm CDT Oct 13, 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