Weather forecast for 10 days
Collinsville, IL

Weather forecast for the weekend

Saturday, May 17.

Mostly Sunny
5:44 am

8:08 pm
CDT
Mostly Sunny
77°F / 55°F
  • Wind: 16mph W
  • Humidity: 48%
  • Precip. probability: 0%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Collinsville, sunshine will prevail for most of the day.
Rainfall is not expected. Temperature fluctuations between a warm 77°F and a mild 55.4°F are predicted.
On Saturday, the expected high will correspond with the regular May temperature of 74.5°F.
Sunrise will be at 5:44 am and sunset at 8:08 pm; the daylight will last for 14h and 24min.

Sunday, May 18.

Partly Cloudy
5:43 am

8:09 pm
CDT
Partly Cloudy
77°F / 63°F
  • Wind: 7mph E
  • Humidity: 57%
  • Precip. probability: 9%
  • Precipitation: 0.39"
  • UV index: 9
On Sunday, May 18, moderate cloud cover will mix with sunshine throughout the day.
With a low probability, light precipitation is predicted. The maximum forecasted temperature is a warm 77°F, while the minimum temperature will be a comfortable 62.6°F.
On Sunday, the anticipated peak temperature is expected to mirror May's average high of 74.5°F.
Sunrise will be at 5:43 am and sunset at 8:09 pm; the daylight will last for 14h and 26min.

Frequently asked questions

What is the weather forecast for Collinsville for Saturday?
On Saturday, in Collinsville, sunshine will prevail for most of the day.
Will it rain on Saturday in Collinsville?
No, it will not rain on Saturday.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 77°F, while the minimum temperature will be 55.4°F.
What is the weather forecast for Collinsville for Sunday?
On Sunday, in Collinsville, clouds and sunshine will create a dynamic sky throughout the day.
Will it rain on Sunday?
Light precipitation of 0.39" is anticipated on Sunday. The possibility of rainfall is low at 9%.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 77°F, while the lowest temperature will be 62.6°F.
What is the weather forecast for Collinsville for the next ten days?
In Collinsville, weather will be unstable, and a combination of cloudy, storm-filled, sun-filled and wet weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is anticipated on Friday, Monday through Wednesday in Collinsville. With elevated precipitation of 1.02", Monday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will vary between 59°F and 86°F, as the minimum temperature will be between 48.2°F and 64.4°F.
What will be the hottest and the coldest days?
Tomorrow will be the hottest day, with a maximum temperature of 86°F. Wednesday will be the coldest day, with a maximum temperature of 59°F.

Long-term weather forecast

ThuMay 15.
  • min.
  • 59°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SW
  • Humidity: 74%
  • UV index: 0
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:45 am 8:06 pm CDT
FriMay 16.
  • 86°F
  • 59°F
Scattered Strong Storms
Scattered Strong Storms
  • Wind: 16mph SSW
  • Humidity: 55%
  • UV index: 8
  • Precip. probability: 47%
  • Precipitation: 0.2"
  • 5:45 am 8:07 pm CDT
SatMay 17.
  • 77°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Wind: 16mph W
  • Humidity: 48%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:44 am 8:08 pm CDT
SunMay 18.
  • 77°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph E
  • Humidity: 57%
  • UV index: 9
  • Precip. probability: 9%
  • Precipitation: 0.39"
  • 5:43 am 8:09 pm CDT
MonMay 19.
  • 77°F
  • 64°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 11mph ESE
  • Humidity: 81%
  • UV index: 5
  • Precip. probability: 57%
  • Precipitation: 1.02"
  • 5:42 am 8:10 pm CDT
TueMay 20.
  • 73°F
  • 57°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 14mph SSW
  • Humidity: 79%
  • UV index: 4
  • Precip. probability: 56%
  • Precipitation: 0.79"
  • 5:41 am 8:11 pm CDT
WedMay 21.
  • 59°F
  • 48°F
AM Showers
AM Showers
  • Wind: 15mph WNW
  • Humidity: 77%
  • UV index: 7
  • Precip. probability: 32%
  • Precipitation: 0.08"
  • 5:41 am 8:11 pm CDT
ThuMay 22.
  • 66°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph NW
  • Humidity: 64%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:40 am 8:12 pm CDT
FriMay 23.
  • 70°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph WSW
  • Humidity: 64%
  • UV index: 9
  • Precip. probability: 17%
  • Precipitation: 0"
  • 5:39 am 8:13 pm CDT
SatMay 24.
  • 72°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Humidity: 65%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:39 am 8:14 pm CDT
The next ten days will bring unstable conditions, and a mix of gloomy, thunderstorm-prone, dry and sunny and wet weather is expected.
Rainfall is expected on Friday, Monday through Wednesday.
There will be a considerable variation in temperature in the coming days. The temperature is expected to swing from 59°F up to 86°F, while there will be also a marked difference in overnight low temperatures, as the minimum temperature is expected to range between 48.2°F and 64.4°F.
Friday is expected to be the hottest, reaching up to 86°F; expect the coldest day on Wednesday with a high of 59°F.
Updated: May 16, 2025 @ 01:38:14 UTC
Published by: Weather Atlas | About Us
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