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

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

55°F

13°C

Humidity 80%
Wind Speed SE 3 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 19 Jun 1:52 am CDT
Extended Forecast for

6 Miles SE Merrill IA

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Partly sunny, with a high near 76. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Chance of precipitation is 30%.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 54. West southwest wind 5 to 10 mph becoming north northeast after midnight.

    Low: 54 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: A 10 percent chance of showers after 5pm. Mostly sunny, with a high near 80. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm, mainly after 1am. Low around 58. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 70. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Juneteenth
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Partly sunny, with a high near 76. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 54. West southwest wind 5 to 10 mph becoming north northeast after midnight.
Saturday
A 10 percent chance of showers after 5pm. Mostly sunny, with a high near 80. Northeast wind around 5 mph becoming southeast in the afternoon.
Saturday Night
Showers and possibly a thunderstorm, mainly after 1am. Low around 58. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 70. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Merrill IA
 42.68°N 96.15°W (Elev. 1398 ft)
Last Update:
1:32 am CDT Jun 19, 2026
Forecast Valid:
2am CDT Jun 19, 2026-6pm CDT Jun 25, 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