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

Hazardous Weather Conditions

Current conditions at

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Mostly Cloudy

63°F

17°C

Humidity 83%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 20 Jun 11:35 pm CDT
Extended Forecast for

Merrill IA

  • Overnight

    Overnight: Showers. Low around 58. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers likely with a chance of sprinkles before 3pm, then a slight chance of showers between 3pm and 4pm, then a chance of sprinkles after 4pm. Mostly cloudy, with a high near 70. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 70 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers between 7pm and 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 53. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. North northeast wind around 5 mph becoming east in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. South southeast wind around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. South southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 76 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers. Low around 58. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Showers likely with a chance of sprinkles before 3pm, then a slight chance of showers between 3pm and 4pm, then a chance of sprinkles after 4pm. Mostly cloudy, with a high near 70. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of showers between 7pm and 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 53. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 77. North northeast wind around 5 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 55. South southeast wind around 5 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. South southeast wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 79.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Saturday
Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrill IA
 42.74°N 96.24°W (Elev. 1161 ft)
Last Update:
11:03 pm CDT Jun 20, 2026
Forecast Valid:
12am CDT Jun 21, 2026-6pm CDT Jun 27, 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