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Sioux City, IA 51103 Weather

It is 57°F and cloudy in Sioux City, IA 51103, observed at 1:35 AM CDT. Today: Chance Showers And Thunderstorms, high 62°F, low 51°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Sioux City, IA 51103 current weather

57°F

Cloudy

H 62° / L 51°Feels like 57°

Observed at Sioux City, Sioux Gateway Airport (8.9 mi away), 10/31/2026, 1:35 AM CDT

Hourly forecast

NWS, updated 10/30/2026, 11:58 PM PT

  1. Now54°14%
  2. 3 AM52°13%
  3. 4 AM54°14%
  4. 5 AM54°26%
  5. 6 AM55°17%
  6. 7 AM56°25%
  7. 8 AM56°29%
  8. 9 AM57°36%
  9. 10 AM59°25%
  10. 11 AM60°27%
  11. 12 PM61°10%
  12. 1 PM61°46%
  13. 2 PM62°40%
  14. 3 PM62°21%
  15. 4 PM62°19%
  16. 5 PM62°24%
  17. 6 PM61°24%
  18. 7 PM60°21%
  19. 8 PM59°31%
  20. 9 PM58°20%
  21. 10 PM58°
  22. 11 PM57°17%
  23. 12 AM57°21%Sun
  24. 1 AM56°27%
  25. 1 AM56°33%
  26. 2 AM55°27%
  27. 3 AM54°29%
  28. 4 AM54°
  29. 5 AM54°11%
  30. 6 AM53°22%
  31. 7 AM54°
  32. 8 AM54°
  33. 9 AM57°
  34. 10 AM59°
  35. 11 AM60°
  36. 12 PM61°
  37. 1 PM63°
  38. 2 PM63°
  39. 3 PM63°
  40. 4 PM63°
  41. 5 PM64°
  42. 6 PM61°18%
  43. 7 PM60°18%
  44. 8 PM59°18%
  45. 9 PM59°18%
  46. 10 PM58°18%
  47. 11 PM58°18%
  48. 12 AM57°79%Mon

10-day forecast

Tap a day for details

  • Today10/3146% chance of precipitationLow 51°High 62°

    Saturday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 62. South southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

    Overnight: A chance of showers and thunderstorms after 5am. Cloudy. Low around 51, with temperatures rising to around 54 overnight. Southeast wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Chance Showers And Thunderstorms
  • Sun11/179% chance of precipitationLow 55°High 64°

    Sunday: A slight chance of rain showers before 7am. Mostly cloudy, with a high near 64. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Sunday Night: Rain showers. Cloudy, with a low around 55. Southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Slight Chance Rain Showers then Mostly Cloudy
  • Mon11/2100% chance of precipitationLow 49°High 66°

    Monday: Showers and thunderstorms. Cloudy, with a high near 66. South southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%.

    Monday Night: Showers and thunderstorms. Mostly cloudy, with a low around 49. Chance of precipitation is 80%.

    Showers And Thunderstorms
  • Tue11/372% chance of precipitationLow 40°High 54°

    Tuesday: Rain showers likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.

    Tuesday Night: A slight chance of rain showers. Mostly cloudy, with a low around 40.

    Rain Showers Likely
  • Wed11/416% chance of precipitationLow 40°High 55°

    Wednesday: A slight chance of rain showers before noon. Mostly sunny, with a high near 55.

    Wednesday Night: Partly cloudy, with a low around 40.

    Slight Chance Rain Showers then Mostly Sunny
  • Thu11/5Low 40°High 54°

    Thursday: Mostly sunny, with a high near 54.

    Thursday Night: Partly cloudy, with a low around 40.

    Mostly Sunny
  • Fri11/6Low High 54°

    Friday: Partly sunny, with a high near 54.

    Partly Sunny
  • Sat11/7Model blend19% chance of precipitationLow 40°High 57°

    Saturday: Mostly cloudy. High near 57°. Low that night near 40°. About 0.03 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend16% chance of precipitationLow 41°High 58°

    Sunday: Partly cloudy, slight chance of rain. High near 58°. Low that night near 41°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Mon11/9Model blendLow 42°High 59°

    Monday: Partly cloudy. High near 59°. Low that night near 42°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 42.523, -96.448 from the NWS FSD office, updated 10/30/2026, 11:58 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KSUX (Sioux City/Day Fld, 10 mi), model run 10/30/2026, 9:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now54°Cloudy14%10 mph
  2. 3 AM52°Cloudy13%10 mph
  3. 4 AM54°Cloudy14%10 mph
  4. 5 AM54°Chance Showers And Thunderstorms26%10 mph
  5. 6 AM55°Slight Chance Showers And Thunderstorms17%10 mph
  6. 7 AM56°Chance Rain Showers25%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Sioux City, IA 51103 right now?
The latest observation from Sioux City, Sioux Gateway Airport was 57°F and cloudy, reported at 10/31/2026, 1:35 AM CDT.
What is the high temperature today in Sioux City, IA 51103?
The National Weather Service forecast for saturday calls for a high near 62°F. Chance Showers And Thunderstorms.
Will it rain in Sioux City, IA 51103 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Sioux City, IA 51103?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 7 to Nov 9) come from the NOAA National Blend of Models, with highs of 57°F to 59°F. Model guidance this far out often changes.
What time is sunrise and sunset in Sioux City, IA 51103 today?
Sunrise is about 7:58 AM CDT and sunset is about 6:20 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Sioux City, IA 51103?
At Sioux City Ang, the 1991 to 2020 normal high in October is 64°F and the normal low is 37°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
1.47 in
Snow
0.00 in
Ice
0.00 in

Nearby hazards

Iowa hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Northwest Iowa)
37GoodOzone
AQI forecast tomorrow (Northwest Iowa)
52ModeratePM2.5

UV index guide · Air quality

Drought

By county

Woodbury County, week of 10/27/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:58 AM
Sunset
6:20 PM
Daylight
10 hr 22 min
Moon
Waning Gibbous 73% lit
First light (civil dawn)
7:29 AM
Last light (civil dusk)
6:49 PM
Moonrise
11:15 PM
Moonset
2:07 PM

Normal October weather

Climate

Normal October high 64°, low 37°, precipitation 2.38 in for the month. 1991 to 2020 normals at Sioux City Ang, 9 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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