Current Weather Forecast for Sullivan

IL 61951  |   8:12am

Weather Conditions

72°

Feels Like 72°

Sunny

66° 85°

1

UV Index

Good

Air Quality

WSW 7 mph

Wind

0 in

rain

Today

Sat 7/12

85°

Highest Temperature

76%

Thunderstorms likely. Gusty winds and small hail are possible. High near 85F. Winds WSW at 10 to 15 mph. Chance of rain 80%.

Tonight

Sat 7/12

69°

Lowest Temperature

9%

Mostly clear early followed by cloudy skies overnight. Low 69F. Winds NW at 5 to 10 mph.

Tomorrow

Sun 7/13

85°

Highest Temperature

16%

Sunshine and clouds mixed. High around 85F. Winds light and variable.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Sullivan

Hourly Weather Forecast & Temperature

9AM

8%

75°

Feels Like 75°

Partly Cloudy

SW 9 mph

Wind

1012 mb

Pressure

81%

Humidity

3

UV Index

10mi

Visibility

38%

Cloud Cover

10AM

11%

77°

Feels Like 77°

Mostly Cloudy

SW 10 mph

Wind

1013 mb

Pressure

79%

Humidity

4

UV Index

10mi

Visibility

72%

Cloud Cover

11AM

15%

78°

Feels Like 78°

Cloudy

WSW 10 mph

Wind

1013 mb

Pressure

78%

Humidity

5

UV Index

10mi

Visibility

86%

Cloud Cover

12PM

64%

81°

Feels Like 87°

Thunderstorms

WSW 12 mph

Wind

1013 mb

Pressure

77%

Humidity

4

UV Index

6mi

Visibility

89%

Cloud Cover

1PM

76%

81°

Feels Like 87°

Thunderstorms

WSW 12 mph

Wind

1013 mb

Pressure

77%

Humidity

6

UV Index

3mi

Visibility

80%

Cloud Cover

2PM

51%

81°

Feels Like 87°

Scattered Thunderstorms

WSW 11 mph

Wind

1013 mb

Pressure

77%

Humidity

6

UV Index

4mi

Visibility

86%

Cloud Cover

3PM

18%

82°

Feels Like 88°

Mostly Cloudy

W 10 mph

Wind

1013 mb

Pressure

75%

Humidity

6

UV Index

10mi

Visibility

64%

Cloud Cover

4PM

9%

83°

Feels Like 90°

Partly Cloudy

W 10 mph

Wind

1012 mb

Pressure

68%

Humidity

5

UV Index

10mi

Visibility

56%

Cloud Cover

5PM

7%

84°

Feels Like 90°

Partly Cloudy

W 10 mph

Wind

1012 mb

Pressure

64%

Humidity

3

UV Index

10mi

Visibility

55%

Cloud Cover

6PM

4%

84°

Feels Like 89°

Partly Cloudy

WNW 10 mph

Wind

1012 mb

Pressure

66%

Humidity

1

UV Index

10mi

Visibility

54%

Cloud Cover

7PM

2%

82°

Feels Like 88°

Sunny

WNW 8 mph

Wind

1013 mb

Pressure

68%

Humidity

0

UV Index

10mi

Visibility

19%

Cloud Cover

8PM

4%

80°

Feels Like 85°

Sunny

WNW 5 mph

Wind

1013 mb

Pressure

76%

Humidity

0

UV Index

10mi

Visibility

15%

Cloud Cover

Sat 7/12

Sat

76%

66°

85°

Showers and thunderstorms. Highs in the mid 80s and lows in the upper 60s.

90°

Feels Like

WSW 13 mph

Wind

74%

Humidity

6

UV Index

5:37 AM

Sunrise

8:22 PM

Sunset

Sun 7/13

Sun

16%

69°

85°

Times of sun and clouds. Highs in the mid 80s and lows in the upper 60s.

89°

Feels Like

SSW 6 mph

Wind

68%

Humidity

9

UV Index

5:37 AM

Sunrise

8:22 PM

Sunset

Mon 7/14

Mon

10%

68°

88°

A few clouds. Highs in the upper 80s and lows in the low 70s.

93°

Feels Like

SSE 5 mph

Wind

70%

Humidity

10

UV Index

5:38 AM

Sunrise

8:21 PM

Sunset

Tue 7/15

Tue

56%

71°

87°

Scattered thunderstorms. Highs in the upper 80s and lows in the low 70s.

94°

Feels Like

S 9 mph

Wind

74%

Humidity

10

UV Index

5:39 AM

Sunrise

8:21 PM

Sunset

Wed 7/16

Wed

45%

72°

88°

A few thunderstorms possible. Highs in the upper 80s and lows in the low 70s.

96°

Feels Like

SW 11 mph

Wind

74%

Humidity

10

UV Index

5:40 AM

Sunrise

8:20 PM

Sunset

Thu 7/17

Thu

61%

72°

86°

Thunderstorms. Highs in the mid 80s and lows in the upper 60s.

93°

Feels Like

WSW 10 mph

Wind

76%

Humidity

9

UV Index

5:41 AM

Sunrise

8:19 PM

Sunset

Fri 7/18

Fri

35%

69°

84°

Morning showers. Highs in the mid 80s and lows in the low 70s.

89°

Feels Like

SW 8 mph

Wind

75%

Humidity

9

UV Index

5:41 AM

Sunrise

8:19 PM

Sunset

Sat 7/19

Sat

33%

70°

86°

Morning showers. Highs in the upper 80s and lows in the low 70s.

92°

Feels Like

SSW 9 mph

Wind

70%

Humidity

9

UV Index

5:42 AM

Sunrise

8:18 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Latest Stories from Illinois

Severe thunderstorms bring 70+ mph winds, Flash Flood Emergency to Iowa

Severe thunderstorms rolled across the Midwest Friday, bringing rounds of damaging wind gusts, torrential rains and even a few reported tornadoes.

What’s behind all the recent extreme flooding?

Recent flash flooding events have claimed lives and damaged property in Texas, North Carolina, Illinois and New Mexico. While all extreme weather events have been associated with their own triggering mechanisms, there are some similarities between the incidents.

2025 severe weather season still busiest in more than a decade

The 2025 spring tornado season was one of the most active in over a decade, with over 900 tornado reports. Several intense outbreaks occurred, including five EF4 twisters. Despite the activity, no EF5 tornadoes were reported, continuing a 12-year streak.

Bacteria worries close several beaches across US ahead of 4th of July

Several beaches from Washington to New York have warnings in place or are closed to swimming due to high bacteria levels in the water as the Fourth of July quickly approaches.

Load More Stories