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.

55°F

13°C

Humidity 88%
Wind Speed NW 6 mph
Barometer 30.03 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 25 Jun 3:35 am CDT
Extended Forecast for

Alton IA

  • Overnight

    Overnight: Partly cloudy, with a low around 54. North northwest wind around 5 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. North wind around 5 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. East wind around 5 mph.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. East southeast wind 5 to 10 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Southeast wind around 10 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 84. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 84 °F

    Partly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 72. Breezy.

    Low: 72 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Breezy.

    High: 97 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 54. North northwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 78. North wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 57. East wind around 5 mph.
Friday
Mostly sunny, with a high near 81. East southeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 62. Southeast wind around 10 mph.
Saturday
Partly sunny, with a high near 84. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 72. Breezy.
Sunday
Sunny and hot, with a high near 97. Breezy.
Sunday Night
Mostly clear, with a low around 76.
Monday
Mostly sunny and hot, with a high near 97. Breezy.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Wednesday
Mostly sunny, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alton IA
 42.98°N 96.04°W (Elev. 1362 ft)
Last Update:
1:33 am CDT Jun 25, 2026
Forecast Valid:
3am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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