Hazardous Weather Conditions
Current conditions at
Sioux County Regional Airport (KSXK)
Lat: 42.99°NLon: 96.16°WElev: 1409ft.
A Few Clouds
81°F
27°C
| Humidity | 89% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 30.03 in |
| Dewpoint | 77°F (25°C) |
| Visibility | 9.00 mi |
| Heat Index | 88°F (31°C) |
| Last update | 15 Aug 12:15 pm CDT |
Extended Forecast for
Alton IA
This Afternoon
High: 80 °F
Showers
LikelyTonight
Low: 62 °F
Chance
Showers then
Partly CloudySunday
High: 78 °F
Becoming
SunnySunday Night
Low: 55 °F
Mostly Clear
Monday
High: 79 °F
Mostly Sunny
then Chance
ShowersMonday Night
Low: 61 °F
Chance
T-storms then
Chance
ShowersTuesday
High: 77 °F
Chance
T-storms then
Showers
LikelyTuesday Night
Low: 57 °F
Chance
ShowersWednesday
High: 74 °F
Partly Sunny
Detailed Forecast
This Afternoon
A chance of rain and thunderstorms before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 80. Calm wind becoming west around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 62. Calm wind becoming north around 5 mph after midnight.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 78. North northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm.
Monday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 79. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 61. Southwest wind around 5 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 57.
Wednesday
Partly sunny, with a high near 74.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 75.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Alton IA
42.98°N 96.01°W (Elev. 1283 ft)
42.98°N 96.01°W (Elev. 1283 ft)
11:48 am CDT Aug 15, 2026
12pm CDT Aug 15, 2026-6pm CDT Aug 21, 2026
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