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Next week to bring another uptick in temps, humidity in the Northeast. Get the forecast. Chevron right

Lake Summerset, IL

66°F
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Lake Summerset

Illinois

66°
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Lake Summerset, 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

June

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
31
79°
52°
1
78°
55°
2
81°
51°
3
83°
54°
4
85°
58°
5
78°
63°
6
Warmer with a stray t-storm
88°
65°
7
Humid with clouds and sun
81°
64°
8
Cloudy, humid; a p.m. t-storm
78°
66°
9
Humid with a thunderstorm
89°
70°
10
Breezy, hot and humid
92°
69°
11
Some sun; breezy, not as hot
85°
64°
12
A strong afternoon t-storm
89°
63°
13
A couple of thunderstorms
81°
57°
14
Decreasing clouds; less humid
73°
55°
15
A little morning rain
77°
56°
16
An afternoon shower
76°
55°
17
Partly sunny with a shower
74°
58°
18
Plenty of sunshine
75°
60°
19
Increasing cloudiness
81°
59°
20
Humid with clouds and sun
77°
62°
21
Sunshine and a few clouds
80°
63°
22
Mostly cloudy and humid
76°
63°
23
Humid with clouds and sun
80°
64°
24
A few morning showers; humid
83°
64°
25
A couple of morning showers
83°
65°
26
A thunderstorm in spots
84°
64°
27
Mostly sunny and less humid
84°
60°
28
Mostly cloudy
76°
57°
29
Partly sunny
77°
63°
30
Humid with a stray t-shower
83°
65°
1
Humid with sun, then clouds
79°
65°
2
Some sun, then clouds; humid
80°
64°
3
A shower and thunderstorm
83°
61°
4
Mostly sunny and less humid
78°
57°

Temperature Graph

°F
100° 90° 80° 70° 60° Jun
Today 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
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

June Weather in Lake Summerset

Lake Summerset's June 2026 forecast shows daily high temperatures ranging from 73° to 92°, with overnight lows between 55° and 70°. The average high for June is 81° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Lake Summerset. See also: July | August | September.

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