| Index | ![]() |
|---|---|
| Climate Index: | 73.02 |
| Month | Climate Score | Weather Conditions Outline |
| Jan | 8.96 |
Low avg 21℉
Chance of snow day 26%
|
| Feb | 17.72 |
Low avg 23℉
Chance of snow day 32%
|
| Mar | 67.99 | |
| Apr | 92.34 | |
| May | 100.00 |
Chance of rainy day 41%
|
| Jun | 97.84 |
Chance of humid day 90%
|
| Jul | 95.01 |
Chance of humid day 97%
|
| Aug | 97.01 |
Chance of humid day 92%
|
| Sep | 99.37 | |
| Oct | 92.34 | |
| Nov | 63.05 | |
| Dec | 44.62 |
Low avg 28℉
Chance of cloudy day 43%
|
Best months to visit: April, May, June, July, August, September, October.
| Month | Temp Low Avg | Temp High Avg |
| Jan | 21℉ | 37℉ |
| Feb | 23℉ | 39℉ |
| Mar | 36℉ | 55℉ |
| Apr | 46℉ | 68℉ |
| May | 55℉ | 75℉ |
| Jun | 64℉ | 84℉ |
| Jul | 68℉ | 88℉ |
| Aug | 64℉ | 86℉ |
| Sep | 57℉ | 79℉ |
| Oct | 46℉ | 68℉ |
| Nov | 34℉ | 54℉ |
| Dec | 28℉ | 43℉ |
| Climate in Collinsville, Illinois | 10.61 miles |
| Climate in Alton, Illinois | 14.68 miles |
| Climate in Belleville, Illinois | 21.16 miles |
| Climate in Havana, Illinois | 124.43 miles |
| Climate in Bloomington, Illinois | 139.04 miles |
| Climate in Cape Girardeau, Missouri | 140.63 miles |
| Climate in Waynesville, Missouri | 155.93 miles |
| Climate in Eldon, Missouri | 174.96 miles |
| Climate in Houston, Missouri | 176.17 miles |
| Climate in Galesburg, Illinois | 194.45 miles |