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

Lacon, IL

77°F
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Lacon

Illinois

77°
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Lacon, 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
80°
58°
1
83°
51°
2
83°
50°
3
82°
48°
4
85°
55°
5
Showers and t-storms; breezy
82°
68°
6
Humid with a t-storm in spots
86°
66°
7
An afternoon t-storm; humid
81°
69°
8
A shower and t-storm; humid
80°
69°
9
Humid with a thunderstorm
87°
68°
10
Decreasing clouds; hot, humid
92°
70°
11
Hot with clouds and sun
94°
71°
12
Mostly sunny, hot and humid
93°
70°
13
A.M. showers; mostly cloudy
89°
65°
14
A couple of afternoon showers
86°
63°
15
Partly sunny, showers around
82°
58°
16
Clouds limiting sun
79°
57°
17
Sunny spells
79°
61°
18
Mostly cloudy
87°
62°
19
Mostly cloudy and humid
86°
66°
20
Humid with clouds and sun
87°
66°
21
Clouds breaking for some sun
84°
60°
22
Cloudy
80°
59°
23
Mostly sunny and humid
82°
68°
24
Mostly sunny and humid
90°
69°
25
A thunderstorm in spots
90°
67°
26
Cloudy and less humid
86°
64°
27
Mostly cloudy
82°
65°
28
Mostly cloudy
83°
66°
29
Sunshine and a few clouds
86°
68°
30
Partly sunny
86°
68°
1
Abundant sunshine
87°
67°
2
Plenty of sunshine
86°
68°
3
Mostly sunny
89°
69°
4
Mainly cloudy
90°
68°

Temperature Graph

°F
100° 88° 76° 64° 52° 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 Lacon

Lacon's June 2026 forecast shows daily high temperatures ranging from 79° to 94°, with overnight lows between 57° and 71°. The average high for June 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 June weather will actually feel in Lacon. See also: July | August | September.

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September 2026

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World North America United States Illinois Lacon

Weather Near Lacon:

  • Bloomington, IL
  • Normal, IL
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