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Edwardsville (IL) Weather and Climate: A Comprehensive Guide

The climate in Edwardsville is marked by big temperature swings throughout the year. Temperatures range from very warm during the warmest months to cold in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

In Edwardsville, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 31°C in July to a chilly 4°C in January.

Nighttime temperatures can drop, with average lows reaching -5°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Edwardsville experiences significant rain/snowfall throughout the year, averaging 1138 mm of precipitation annually. The seasons in Edwardsville, bring significant changes in precipitation. The wettest month, April, receives high rainfall, with an average of 138 mm of precipitation. This rainfall is distributed across 11 rainy days.

In contrast, the driest month, January, experiences much less snow/rainfall, totaling 50 mm over 8 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Edwardsville Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Edwardsville, summer days are longer and more sunny, with daily sunshine hours peaking at 10.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.3 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: St. Louis, the United States of America (29 KM, 18 Miles).

Daily hours of sunshine

Data from: St. Louis, the United States of America (29 KM, 18 Miles).

Forecast for Edwardsville (IL)

Mon   Dec 23
12°C | 2°C
SW 7 m/s
broken clouds and no rain

broken clouds and no rain

Tue   Dec 24
7°C | 1°C
NE 3 m/s
2.1 mm
overcast and  chance of rain

overcast and chance of rain

Wed   Dec 25
8°C | 5°C
SE 4 m/s
1.9 mm
overcast and slight rain

overcast and slight rain

The best time of year to visit Edwardsville in the United States of America

During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Edwardsville?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Edwardsville?
    The coldest month is January with an average maximum temperature of 4°C.
  • Which is the wettest month in Edwardsville?
    April tops the wettest month list with 138 mm of rainfall.
  • Which is the driest month in Edwardsville?
    January is the driest month with 50 mm of precipitation.
  • Which is the sunniest month in Edwardsville?
    July is the sunniest month with an average of 311 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.