Weather in Alton, MO
Updated 2026-08-11 10:30 local time · ZIP codes 65606
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
87°2% rain95°1% rain97°1% rain99°1% rain100°1% rain101°1% rain101°1% rain100°1% rain99°0% rain95°1% rain91°1% rain
88°1% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 1%).
It feels like 92°F with winds near 9 mph.
91°F, 1% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 13 mph.
Current temperature is 87°F, wind 9 mph, rain chance up to 1%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Alton weather today
Sunny and 87°F in Alton, MO. Today's high is 101°F with a 2% rain chance. Winds are around 9 mph with gusts near 10 mph. Relative humidity is 55%, pressure is 30.02 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Alton
Sunrise is at 06:19 AM and sunset is at 08:01 PM. Tomorrow's forecast calls for Sunny with a high near 100°F and a low near 76°F. The maximum rain chance is 2%.