Weather forecast for 10 days
Sullivan, IL

Weather forecast for the weekend

Saturday, Apr 19.

Rain
6:08 am

7:37 pm
CDT
Rain
61°F / 54°F
  • Wind: 9mph NW
  • Humidity: 87%
  • Precip. probability: 100%
  • Precipitation: 0.59"
  • UV index: 2
Today, in Sullivan, expect light to moderate rain through the day, with occasional breaks.
With a high probability, moderate precipitation is anticipated. A narrow temperature span is expected, from a high of a breezy 60.8°F to a low of a crisp 53.6°F.
The highest temperature is predicted to reflect April's average of 62.2°F.
Sunrise was at 6:08 am and sunset will be at 7:37 pm; the daylight will last for 13h and 29min.

Sunday, Apr 20.

AM Rain
6:07 am

7:38 pm
CDT
AM Rain
77°F / 55°F
  • Wind: 16mph ESE
  • Humidity: 79%
  • Precip. probability: 78%
  • Precipitation: 0.35"
  • UV index: 4
On Sunday, April 20, steady rain is also expected early in the day.
The chance of precipitation for tomorrow is high. However, the rainfall will be light. Temperatures will oscillate between a moderately hot 77°F at their highest and a mild 55.4°F at their lowest.
It will feel warmer, with a temperature more typical of May's average maximum of 72.9°F.
Sunrise will be at 6:07 am and sunset at 7:38 pm; tomorrow's daylight will last for 13h and 31min.

Frequently asked questions

What is the weather forecast for Sullivan for tomorrow?
On Sunday, in Sullivan, expect a wet start with rain likely in the morning.
Will it rain tomorrow?
Light precipitation of 0.35" is forecasted. The likelihood of rainfall is 78%.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 77°F, while the lowest temperature will be 55.4°F.
The maximum temperature will be notably higher than the average highest temperature of 62.2°F in April. The lowest temperature will be also noticeably higher than the average low of 46°F.
When is the sunrise / sunset tomorrow?
On Sunday, in Sullivan, sunrise will be at 6:07 am and sunset at 7:38 pm (CDT).
How long will the day be tomorrow?
Tomorrow, the daylight will last for 13h and 31min.
What is the weather forecast for Sullivan for the next ten days?
In Sullivan, a combination of predominantly cloud-filled and occasionally damp and lightning-active weather is predicted for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on Saturday, Sunday, Thursday, Friday and next Monday in Sullivan. Saturday, with moderate precipitation of 0.59", will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 60.8°F and 80.6°F, as the minimum temperature will be between 44.6°F and 60.8°F.
What will be the warmest and the coldest days?
The warmest days will be Wednesday and Thursday, with a maximum of 80.6°F. With a maximum temperature of 60.8°F, Saturday and Monday will be the coldest days.

Long-term weather forecast

SatApr 19.
  • 61°F
  • 54°F
Rain
Rain
  • Wind: 9mph NW
  • Humidity: 87%
  • UV index: 2
  • Precip. probability: 100%
  • Precipitation: 0.59"
  • 6:08 am 7:37 pm CDT
SunApr 20.
  • 77°F
  • 55°F
AM Rain
AM Rain
  • Wind: 16mph ESE
  • Humidity: 79%
  • UV index: 4
  • Precip. probability: 78%
  • Precipitation: 0.35"
  • 6:07 am 7:38 pm CDT
MonApr 21.
  • 61°F
  • 45°F
Cloudy
Cloudy
  • Wind: 20mph WSW
  • Humidity: 69%
  • UV index: 6
  • Precip. probability: 12%
  • Precipitation: 0"
  • 6:06 am 7:39 pm CDT
TueApr 22.
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SSE
  • Humidity: 58%
  • UV index: 7
  • Precip. probability: 8%
  • Precipitation: 0"
  • 6:04 am 7:40 pm CDT
WedApr 23.
  • 81°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph SSE
  • Humidity: 50%
  • UV index: 6
  • Precip. probability: 20%
  • Precipitation: 0"
  • 6:03 am 7:41 pm CDT
ThuApr 24.
  • 81°F
  • 61°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SSE
  • Humidity: 53%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • 6:02 am 7:42 pm CDT
FriApr 25.
  • 73°F
  • 54°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 12mph ESE
  • Humidity: 71%
  • UV index: 5
  • Precip. probability: 45%
  • Precipitation: 0.28"
  • 6:00 am 7:43 pm CDT
SatApr 26.
  • 73°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph ENE
  • Humidity: 60%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:59 am 7:44 pm CDT
SunApr 27.
  • 73°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph E
  • Humidity: 54%
  • UV index: 7
  • Precip. probability: 13%
  • Precipitation: 0"
  • 5:58 am 7:45 pm CDT
MonApr 28.
  • 75°F
  • 61°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 13mph SE
  • Humidity: 63%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • 5:56 am 7:46 pm CDT
Primarily dull and occasionally rain-soaked and stormy weather is predicted.
Rainfall is anticipated on Saturday, Sunday, Thursday, Friday and next Monday.
Expect a substantial fluctuation in daytime highs in the upcoming period. Forecast highs will fluctuate between 60.8°F and 80.6°F, while the variation in nighttime lows will be also notably wide, as the minimum temperature is expected to range between 44.6°F and 60.8°F.
Wednesday and Thursday, with the highest temperature of 80.6°F, will be the warmest days in Sullivan, Illinois; Saturday and Monday, with the highest temperature of 60.8°F, will be the coldest days in Sullivan, Illinois.
Updated: Apr 19, 2025 @ 16:35:57 UTC
Published by: Weather U.S. | About Us
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