Grand Tower Rainfall Forecast
- 15%
- 50%
- 40%
- 30%
- 25%
- 35%
- 40%
Grand Tower Rainfall Statistics
July Rainfall
Southern Illinois Airport (17.4 miles)
Total Rainfall July
1.3inDaily Average July
0.2inWettest Day 6 July, 2025
0.8inWet Days July
3/11 (27%)
Climate (2010–Present)
Southern Illinois Airport (17.4 miles)
Annual Average 2020–2024
38.5inMonthly Average 2020–2025
3.2inDaily Average 2020–2025
0.1inWettest Day 4 September, 2021
3in