Sioux City, IA Weather Forecast

Local 7-day forecast

97°

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Sioux City, IA in one place.

Friday, July 17, 2026

Wind: 5 to 10 mph S

Friday

Sunny, with a high near 97. South wind 5 to 10 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Sioux City, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 8:26 PM CDT.

The active forecast window currently covers Jul 17 to Jul 21, 2026 for Sioux City, IA.

Page Snapshot

Page focus: city weather
Forecast window: Jul 17 to Jul 21, 2026
Latest sync: Jul 14, 2026 8:26 PM CDT
Forecast office: FSD
Source: NOAA / NWS

Next High

97°F

Friday

Next Low

75°F

Friday Night

Rain Outlook

Periods mentioning precipitation

Windiest

5 to 15 mph

Monday

Daily Outlook

Today

Jul 17

Sunny

97 °F

/ 75°F

Wind 5 to 10 mph

Sat

Jul 18

Sunny

98 °F

/ 73°F

Wind 5 mph

Sun

Jul 19

Sunny

100 °F

/ 75°F

Wind 5 mph

Mon

Jul 20

Mostly Sunny

97 °F

/ 70°F

Wind 5 to 15 mph

Tue

Jul 21

Mostly Sunny

90 °F

Wind 5 to 10 mph

This Week in Sioux City

Sunday looks like the warmest upcoming period in Sioux City at 100 degrees F.

Monday Night is the coolest period ahead with temperatures near 70 degrees F.

The strongest winds are forecast for Monday at about 5 to 15 mph NNW.

The forecast from Jul 17 through Jul 21 stays mostly dry.

Forecast Details

Last updated: Jul 14, 2026 8:26 PM CDT
Coverage: 5 days
Time zone: America/Chicago
Forecast office: FSD
Radar station: KFSD

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Friday Night

Jul 17

75°F

Mostly Clear

5 to 10 mph SSW

Mostly clear, with a low around 75.

Saturday

Jul 18

98°F

Sunny

5 mph NW

Sunny, with a high near 98.

Saturday Night

Jul 18

73°F

Mostly Clear

5 to 10 mph E

Mostly clear, with a low around 73.

Sunday

Jul 19

100°F

Sunny

5 mph S

Sunny, with a high near 100.

Sunday Night

Jul 19

75°F

Partly Cloudy

5 to 10 mph ESE

Partly cloudy, with a low around 75.

Monday

Jul 20

97°F

Mostly Sunny

5 to 15 mph NNW

Mostly sunny, with a high near 97.

Monday Night

Jul 20

70°F

Partly Cloudy

5 to 15 mph N

Partly cloudy, with a low around 70.

Tuesday

Jul 21

90°F

Mostly Sunny

5 to 10 mph NNW

Mostly sunny, with a high near 90.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Friday Jul 17	Sunny	97°F	5 to 10 mph S	Sunny, with a high near 97. South wind 5 to 10 mph.
Friday Night Jul 17	Mostly Clear	75°F	5 to 10 mph SSW	Mostly clear, with a low around 75.
Saturday Jul 18	Sunny	98°F	5 mph NW	Sunny, with a high near 98.
Saturday Night Jul 18	Mostly Clear	73°F	5 to 10 mph E	Mostly clear, with a low around 73.
Sunday Jul 19	Sunny	100°F	5 mph S	Sunny, with a high near 100.
Sunday Night Jul 19	Partly Cloudy	75°F	5 to 10 mph ESE	Partly cloudy, with a low around 75.
Monday Jul 20	Mostly Sunny	97°F	5 to 15 mph NNW	Mostly sunny, with a high near 97.
Monday Night Jul 20	Partly Cloudy	70°F	5 to 15 mph N	Partly cloudy, with a low around 70.
Tuesday Jul 21	Mostly Sunny	90°F	5 to 10 mph NNW	Mostly sunny, with a high near 90.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Sioux City.

Region Links

Woodbury County weather

County forecast page

Iowa weather

Statewide weather overview

United States weather

National weather entry point

Woodbury County Courthouse setting from WNW 1 image

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.