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Spring Bay, IL

86°F
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Spring Bay

Illinois

86°
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Spring Bay, 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
2
Flood Warning

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
Humid; a shower in the a.m.
90°
70°
27
Mostly sunny and humid
90°
70°
28
Mostly sunny, hot and humid
91°
69°
29
Mostly sunny and humid
90°
69°
30
Partly sunny and less humid
89°
67°
31
Mostly cloudy
84°
63°
1
Cloudy, afternoon rain
84°
67°
2
Cloudy
82°
68°
3
Mostly cloudy and humid
82°
65°
4
Humid with clouds and sun
87°
69°
5
Cloudy and humid
89°
69°
6
A shower and thunderstorm
88°
68°
7
Mostly sunny and less humid
84°
64°
8
A morning shower
82°
64°
9
Mostly sunny
82°
66°
10
Sunshine and humid
85°
65°
11
Humid with showers around
86°
67°
12
Humid with plenty of sunshine
87°
68°
13
Mostly sunny and humid
90°
69°
14
A couple of t-storms; humid
91°
68°
15
A couple of t-storms; humid
90°
69°
16
Mostly sunny, hot and humid
91°
63°
17
A couple of t-storms; humid
90°
60°
18
Not as warm; morning rain
82°
58°
19
A passing morning shower
80°
57°
20
Plenty of sunshine
80°
57°
21
Plenty of sunshine
81°
58°
22
Plenty of sunshine
82°
58°
23
Partly sunny
81°
59°
24
Mostly sunny
82°
59°
25
Mostly sunny
84°
63°
26
Humid with plenty of sunshine
86°
61°
27
Couple of thunderstorms
86°
58°
28
Decreasing clouds; less humid
81°
57°
29
Plenty of sun
81°
61°
30
Sunny
86°
64°
31
Partly sunny and humid
85°
57°
1
A stray afternoon t-shower
86°
57°
2
Decreasing clouds; less humid
80°
56°
3
Mostly sunny
79°
61°
4
Partly sunny
82°
65°
5
A t-storm around in the p.m.
86°
56°

Temperature Graph

°F
100° 90° 80° 70° 60° 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 Spring Bay

Spring Bay's August 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 56° and 70°. The average high for August is 85° with an average low of 63°. 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 Spring Bay. See also: September | October | November.

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