World > North America > United States > Illinois > Chester   City of Chester, IL

Chester, Illinois Climate Averages

Feedback E-mail the Weather

Quick Clicks

Chester Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 40°F Lo 26°F Hi 45°F Lo 29°F Hi 56°F Lo 39°F Hi 65°F Lo 47°F Hi 75°F Lo 58°F Hi 85°F Lo 67°F Hi 88°F Lo 69°F Hi 86°F Lo 67°F Hi 81°F Lo 61°F Hi 68°F Lo 50°F Hi 55°F Lo 39°F Hi 46°F Lo 32°F
9 mph 9 mph 9 mph 9 mph 8 mph 7 mph 6 mph 6 mph 6 mph 8 mph 9 mph 9 mph
3.5 in 3.5 in 5.4 in 6.9 in 6.2 in 4.1 in 4.8 in 4.5 in 3.4 in 4.7 in 3.7 in 3.9 in
75% 76% 76% 76% 79% 75% 76% 75% 72% 68% 70% 75%
49% 48% 47% 43% 39% 29% 31% 29% 28% 32% 34% 46%
30.1 in 30.1 in 30.1 in 30.0 in 30.0 in 29.9 in 30.0 in 30.0 in 30.0 in 30.0 in 30.1 in 30.1 in
22 18 22 21 20 21 21 23 24 24 24 23
7 7 8 9 11 9 10 8 6 7 6 6
3 3 1 0 0 0 0 0 0 0 1 1
0 0 0 0 0 0 0 0 0 0 0 0
2 2 3 4 5 6 6 5 5 3 2 2
167 152 159 172 195 241 239 249 239 232 219 173
January
February
March
April
May
June
July
August
September
October
November
December
Hi 5°C Lo -3°C Hi 7°C Lo -2°C Hi 13°C Lo 4°C Hi 19°C Lo 9°C Hi 24°C Lo 14°C Hi 29°C Lo 19°C Hi 31°C Lo 21°C Hi 30°C Lo 20°C Hi 27°C Lo 16°C Hi 20°C Lo 10°C Hi 13°C Lo 4°C Hi 8°C Lo 0°C
15 km/h 15 km/h 15 km/h 14 km/h 12 km/h 10 km/h 9 km/h 9 km/h 10 km/h 13 km/h 14 km/h 14 km/h
88 mm 88 mm 137 mm 175 mm 156 mm 103 mm 122 mm 114 mm 85 mm 119 mm 93 mm 99 mm
75% 76% 76% 76% 79% 75% 76% 75% 72% 68% 70% 75%
49% 48% 47% 43% 39% 29% 31% 29% 28% 32% 34% 46%
1021 mb 1020 mb 1018 mb 1015 mb 1015 mb 1014 mb 1015 mb 1015 mb 1017 mb 1017 mb 1021 mb 1020 mb
22 18 22 21 20 21 21 23 24 24 24 23
7 7 8 9 11 9 10 8 6 7 6 6
3 3 1 0 0 0 0 0 0 0 1 1
0 0 0 0 0 0 0 0 0 0 0 0
2 2 3 4 5 6 6 5 5 3 2 2
167 152 159 172 195 241 239 249 239 232 219 173
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Pressure Average
Average Dry Days
Avg. Precip. Days
Avg. Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.

Trending Headlines

Chester Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Chester Quick Facts

National Two Day Weather Forecast


E-mail the Chester Weather Forecast

Voice your opinion or tell us about page issues...