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Lyndon, IL

53°F
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Lyndon

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Lyndon, 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 Watch

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 with thunderstorms
83°
67°
27
Clouds and sun; less humid
80°
61°
28
Plenty of sun
81°
63°
29
A couple of afternoon showers
83°
64°
30
Humid with showers around
82°
60°
31
Humid with clouds and sun
83°
63°
1
Humid with a t-storm or two
82°
60°
2
Sunny spells
81°
58°
3
Clouds and sun
80°
59°
4
Mostly sunny
79°
57°
5
Mostly sunny
80°
58°
6
Sunshine and a few clouds
80°
58°
7
A sun-and-cloud mix
81°
57°
8
Plenty of sun
82°
61°
9
Sunny and humid
83°
62°
10
Humid with periods of rain
79°
63°
11
Humid with a shower in places
83°
65°
12
Humid with clouds and sun
85°
65°
13
A shower and t-storm; humid
83°
64°
14
A couple of t-storms; humid
86°
58°
15
A couple of t-storms; humid
85°
57°
16
Mainly cloudy and not as warm
78°
60°
17
Partly sunny
79°
64°
18
Afternoon thunderstorms
78°
58°
19
A morning t-storm or two
80°
55°
20
Partly sunny and less humid
77°
57°
21
Mostly sunny
78°
60°
22
Mostly sunny and humid
82°
61°
23
Mostly sunny and humid
83°
62°
24
Partly sunny and humid
84°
63°
25
Partly sunny and humid
85°
55°
26
A couple of t-storms; humid
84°
56°
27
Mostly cloudy and less humid
76°
57°
28
Decreasing clouds
77°
55°
29
Partly sunny
78°
61°
30
Partly sunny
81°
62°
31
Humid with some sun
84°
62°
1
A couple of t-storms; humid
83°
55°
2
A t-storm around in the a.m.
81°
56°
3
Mostly sunny
82°
58°
4
Not as warm with rain
76°
59°
5
A couple of showers
76°
59°

Temperature Graph

°F
90° 82° 74° 66° 58° 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 Lyndon

Lyndon's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 55° and 67°. The average high for August is 81° with an average low of 60°. 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 Lyndon. See also: September | October | November.

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World North America United States Illinois Lyndon

Weather Near Lyndon:

  • Davenport, IA
  • Moline, IL
  • Rock Island, IL
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