Sioux City, IA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sioux City, IA in one place.
Mostly sunny, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
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: May 24, 2026 11:36 AM CDT.
The active forecast window currently covers May 26 to May 30, 2026 for Sioux City, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 26 to May 30, 2026
- Latest sync
- May 24, 2026 11:36 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Sioux City
Tuesday looks like the warmest upcoming period in Sioux City at 87 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph SSE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 11:36 AM 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 sourceExtended Forecast
Partly cloudy, with a low around 59. Southeast wind 5 to 10 mph.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 55. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Mostly Sunny
|
87°F |
10 to 15 mph
SSE
|
|
Tuesday Night
May 26
|
Partly Cloudy
|
59°F |
5 to 10 mph
SE
|
|
Wednesday
May 27
|
Mostly Sunny then Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
ESE
|
|
Wednesday Night
May 27
|
Chance Showers And Thunderstorms
|
59°F |
5 to 10 mph
ESE
|
|
Thursday
May 28
|
Chance Showers And Thunderstorms
|
82°F |
5 to 10 mph
ESE
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms
|
58°F |
5 to 10 mph
ESE
|
|
Friday
May 29
|
Chance Showers And Thunderstorms
|
78°F |
5 to 10 mph
ESE
|
|
Friday Night
May 29
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
55°F |
5 to 10 mph
ESE
|
|
Saturday
May 30
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
78°F |
5 to 10 mph
SE
|
|
Saturday Night
May 30
|
Slight Chance Showers And Thunderstorms
|
53°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sioux City.
