Track active hurricanes 
Alton, IL Hourly Weather Forecast
8:23 PM 20:23
Waxing crescent
Morning temperature of 25 °C, afternoon 29°, evening 26° and night 22°. Morning temperature of 78 degrees, afternoon 85°, evening 79° and night 72°.
Morning mostly clear, afternoon showers, evening and night clear.
0.08 in 1.9 mmUpdated 7/19 9:10 AM 09:10
The hourly local weather forecast shows hour by hour weather conditions like temperature, feels like temperature, humidity, amount of precipitation and chance of precipitation, wind and gusts for Alton.
Last visited
Nearest Observations
Alton/st. Louis, St. Louis Regional Airport
+27° 81°Dewpoint 24° 75°
Rel. hum. 84 %
Feels like +30° 86°
Pressure 1015 hPa 30 inHg 761.5 mmHg
Visibility 16000 m 10 mi
St. Charles, St. Charles County Smartt Airport
+27° 81°Dewpoint 24° 75°
Rel. hum. 84 %
Feels like +31° 88°
Pressure 1014 hPa 29.9 inHg 760.5 mmHg
Visibility 16000 m 10 mi
St. Louis, Lambert-St. Louis International Airport
+27° 81°
2 m/s 4 mph 7 kmh 2 BftDewpoint 23° 73°
Rel. hum. 84 %
Feels like +31° 88°
Pressure 1014 hPa 29.9 inHg 760.3 mmHg
Visibility 16000 m 10 mi
Nearest observations show current weather observations from your nearest weather stations.
Your favorites
Recommend Foreca
