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Rounds of storms in the South to raise the risk for flooding into early next week. Get the latest. Chevron right

Southern Precinct, IL

82°F
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Southern Precinct

Illinois

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Southern Precinct, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

August

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
Hot and humid with sunshine
92°
72°
27
Humid with a t-storm or two
88°
71°
28
Decreasing clouds; less humid
90°
70°
29
Increasing cloudiness
86°
67°
30
Partly sunny and humid
84°
70°
31
Increasing clouds and humid
85°
69°
1
Humid with plenty of sunshine
86°
71°
2
Sunny, hot and humid
92°
71°
3
Sunny, hot and humid
92°
70°
4
Humid with sunshine
91°
70°
5
Less humid with sunshine
91°
69°
6
Times of clouds and sun
90°
71°
7
Humid with clouds and sun
91°
71°
8
Hot with decreasing clouds
92°
72°
9
Mostly sunny, hot and humid
93°
70°
10
Turning cloudy and less humid
90°
69°
11
Mostly sunny
88°
68°
12
Humid; a shower in the a.m.
90°
70°
13
Humid with a t-storm or two
89°
69°
14
Mostly sunny and less humid
83°
63°
15
Sunny with low humidity
82°
62°
16
Mostly cloudy
82°
61°
17
Times of clouds and sun
83°
63°
18
A t-storm around in the p.m.
83°
67°
19
Mostly sunny and humid
84°
68°
20
A t-storm around in the p.m.
87°
68°
21
Sunny and humid
86°
67°
22
Becoming cloudy and humid
87°
68°
23
Cloudy, humid; p.m. t-storms
86°
68°
24
Humid with a t-storm or two
90°
62°
25
Humid with a few showers
86°
64°
26
Couple of thunderstorms
87°
65°
27
A couple of t-storms; humid
84°
66°
28
A shower and t-storm; humid
86°
65°
29
Humid with a t-storm in spots
85°
64°
30
Couple of thunderstorms
82°
62°
31
Humid with a few showers
82°
65°
1
A shower and t-storm; humid
83°
65°
2
Clouds, thunderstorms; humid
82°
57°
3
Couple of thunderstorms
81°
55°
4
Rain
79°
55°
5
Partly sunny and less humid
78°
56°

Temperature Graph

°F
100° 92° 84° 76° 68° Aug
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

August Weather in Southern Precinct

Southern Precinct's August 2026 forecast shows daily high temperatures ranging from 78° to 93°, with overnight lows between 55° and 72°. The average high for August is 86° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Southern Precinct. See also: September | October | November.

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