0in

Rain Today

Rain Last Hour
0in

Recorded at St. Louis Regional Airport Updated 35 mins ago (8.2 miles away)

Get WillyWeather+ to remove ads

Real-Time Extremes

Hottest 103.9 °F
Laguna Army Airfield, AZ
Coldest 35.5 °F
Point Thomson Airstrip, AK
Windiest 35.6mph
Godthaab / Nuuk, ME
Wettest (Last Hour) 0.5in
Leesburg International Airport, FL
Most Humid 100%
Point Thomson Airstrip, AK
Least Humid 1%
La Veta Mountain, La Veta Pass, CO
Highest Pressure 1045.7 hPa
Salida - Monarch Pass, CO
Lowest Pressure 1000.3 hPa
Arctic Village, Arctic Village Airport, AK

Trending Locations

Get WillyWeather+ to remove ads

Alton Rainfall Forecast

Today 18 Aug
No Rain
Wed 19 Aug
70%
Thu 20 Aug
40%
Fri 21 Aug
5%
Sat 22 Aug
15%
Sun 23 Aug
5%
Mon 24 Aug
20%

Alton Rainfall Statistics

August Rainfall

St. Louis Regional Airport (8.1 miles)

Total Rainfall 2026
17.2in
Daily Average 2026
0.1in
Wettest Day 25 July, 2026
2.5in
Wet Days 2026
40/230 (17%)
Total Rainfall July
3.2in
Daily Average July
0.1in
Wettest Day 25 July, 2026
2.5in
Wet Days July
2/31 (6%)
Total Rainfall August
0.7in
Daily Average August
0.04in
Wettest Day 16 August, 2026
0.5in
Wet Days August
4/18 (22%)

Climate (2021–2025)

St. Louis Regional Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2021–2025
18.9in
Monthly Average 2021–2026
1.7in
Daily Average 2021–2026
0.1in
Wettest Day 5 November, 2024
4.8in

Get WillyWeather+ to remove ads