Collinsville

Sully County, Illinois, United States

Forecast Summary

The next few hours will be partly cloudy, with today reaching 17°C and dropping to 7°C. The coming days will be hazy throughout the day.

Current Weather

24°

Mostly Clear

Feels Like

Min

Max

17°

Compared to Yesterday

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Hourly Forecast

Weather forecast for the next 48 hours.

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Thursday

UV Index

No protection needed

0 Low
Low Extreme

Humidity

Current air moisture level

55% Comfortable
Low High

Daylight Hours

12 hours 5 minutes of sunlight today

07:04

Sunrise

19:09

Sunset

Daily Forecast

Weather forecast for the next 8 days.

Today

17°

Wednesday

24°

Thursday

17°
31°

Friday

18°

Saturday

13°

Sunday

18°

Monday

21°

Tuesday

13°
25°

Air Quality Data Available

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Frequently asked questions about weather in Collinsville

How warm does it get in Collinsville?

The warmest month in Collinsville is July, with average high temperatures of 32°C. The average temperature during this period is around 26°C.

How cold does it get in Collinsville?

The coldest month in Collinsville is January, with average low temperatures of -2°C. The average temperature during this period is around 1°C.

What is the wettest time of year in Collinsville?

The wettest month in Collinsville is April, with an average of 140mm of precipitation.

What is the driest time of year in Collinsville?

The driest month in Collinsville is September, with an average of 75mm of precipitation.

View full climate insights for Collinsville →

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Metric (°C, km/h)