Weather forecast for 10 days
Sullivan, IL

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:25 am

8:27 pm
CDT
Sunny
93°F / 75°F
  • Wind: 15mph SSW
  • Humidity: 67%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 9
On Saturday, June 21, sunshine will likely continue with scattered clouds at most.
Rain is not forecasted. The temperature will vary between a maximum of a humid 93.2°F and a minimum of a moderately hot 75.2°F.
The weather on Saturday is hotter, with a maximum expected near 82.2°F - more like July than June.
Sunrise will be at 5:25 am and sunset at 8:27 pm; the daylight will last for 15h and 1min.

Sunday, Jun 22.

Sunny
5:25 am

8:27 pm
CDT
Sunny
93°F / 75°F
  • Wind: 12mph SSW
  • Humidity: 64%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 9
On Sunday, June 22, sunny and dry conditions are anticipated.
Rain is not forecasted. The temperature scale will run from a maximum of a humid 93.2°F to a minimum of a warm 75.2°F.
It will be hotter, and the temperature will align more closely with July's average high of 82.2°F than June's.
Sunrise will be at 5:25 am and sunset at 8:27 pm; the daylight will last for 15h and 1min.

Frequently asked questions

What is the weather forecast for Sullivan for Saturday?
On Saturday, clear and sunny conditions are expected.
Will it rain on Saturday?
No, it will not rain on Saturday.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 93.2°F, while the lowest temperature will be 75.2°F.
What is the weather forecast for Sullivan for Sunday?
On Sunday, sunshine and minimal clouds are in the outlook.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the maximum temperature on Sunday?
On Sunday, the maximum temperature will be 93.2°F, while the minimum temperature will be 75.2°F.
What is the weather forecast for Sullivan for the next ten days?
In Sullivan, a combination of clear, lightning-active and dull weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rain is anticipated on Wednesday, next Wednesday and Thursday in Sullivan. Wednesday, with moderate precipitation of 0.55", will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will vary between 80.6°F and 93.2°F, while the minimum temperature will vary between 66.2°F and 75.2°F.
Combining with the humidity, the maximum feel-like temperature will vary between 86°F and 113°F.
What will be the hottest and the coldest days?
The hottest days will be Saturday through Monday, with a maximum of 93.2°F. The coldest day will be tomorrow, with a maximum of 80.6°F.

Long-term weather forecast

TueJun 17.
  • min.
  • 72°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SSW
  • Humidity: 86%
  • UV index: 0
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:24 am 8:26 pm CDT
WedJun 18.
  • 81°F
  • 66°F
Scattered Thunderstorms / Wind
Scattered Thunderstorms / Wind
  • Wind: 25mph SSW
  • Humidity: 79%
  • UV index: 7
  • Precip. probability: 61%
  • Precipitation: 0.55"
  • 5:25 am 8:26 pm CDT
ThuJun 19.
  • 84°F
  • 66°F
Partly Cloudy
Partly Cloudy
  • Wind: 10mph WNW
  • Humidity: 69%
  • UV index: 9
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:25 am 8:26 pm CDT
FriJun 20.
  • 88°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph SSW
  • Humidity: 62%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:25 am 8:26 pm CDT
SatJun 21.
  • 93°F
  • 75°F
Sunny
Sunny
  • Wind: 15mph SSW
  • Humidity: 67%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:25 am 8:27 pm CDT
SunJun 22.
  • 93°F
  • 75°F
Sunny
Sunny
  • Wind: 12mph SSW
  • Humidity: 64%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:25 am 8:27 pm CDT
MonJun 23.
  • 93°F
  • 75°F
Sunny
Sunny
  • Wind: 10mph SSW
  • Humidity: 62%
  • UV index: 9
  • Precip. probability: 11%
  • Precipitation: 0"
  • 5:26 am 8:27 pm CDT
TueJun 24.
  • 91°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph SSW
  • Humidity: 63%
  • UV index: 9
  • Precip. probability: 23%
  • Precipitation: 0"
  • 5:26 am 8:27 pm CDT
WedJun 25.
  • 90°F
  • 72°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph SSW
  • Humidity: 68%
  • UV index: 9
  • Precip. probability: 43%
  • Precipitation: 0.12"
  • 5:26 am 8:27 pm CDT
ThuJun 26.
  • 88°F
  • 72°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 9mph SW
  • Humidity: 70%
  • UV index: 9
  • Precip. probability: 37%
  • Precipitation: 0.39"
  • 5:27 am 8:27 pm CDT
Looking ahead, conditions suggest a period of dry and sunny, turbulent and gloomy weather is forecasted.
Rain is anticipated on Wednesday, next Wednesday and Thursday.
Noticeable swings in temperature are expected across the forecast period. Forecast highs will fluctuate between 80.6°F and 93.2°F, while the low temperature range extends from 66.2°F to 75.2°F.
With a maximum temperature of 93.2°F, Saturday through Monday will be the hottest days; the lowest daytime temperature of the period will be reached on Wednesday, peaking at 80.6°F.
Combining with the humidity, the maximum feel-like temperature may increase significantly and range between a hot 86°F and a dangerously hot 113°F.
Updated: Jun 18, 2025 @ 00:02:46 UTC
Published by: Weather U.S. | About Us
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