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Manchester, MO

85°F
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Manchester, MO 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 with sunshine
94°
74°
27
Mostly sunny, hot and humid
94°
74°
28
An afternoon t-storm or two
92°
73°
29
Humid; a stray a.m. t-shower
91°
73°
30
Becoming cloudy and humid
90°
72°
31
A shower and thunderstorm
88°
71°
1
Turning cloudy
85°
71°
2
Dull and dreary
87°
72°
3
A passing afternoon shower
90°
72°
4
Mostly sunny and less humid
90°
69°
5
Partly sunny
90°
71°
6
Plenty of sunshine
89°
72°
7
A shower and thunderstorm
89°
72°
8
A shower and thunderstorm
83°
71°
9
Sunny
84°
69°
10
Mostly sunny
84°
69°
11
Sunshine and a few clouds
85°
68°
12
Sunshine and a few clouds
87°
71°
13
A morning thunderstorm
89°
71°
14
Turning cloudy and very humid
89°
72°
15
Cloudy and humid
90°
72°
16
Hot with clouds and sun
92°
71°
17
Sunshine and humid
90°
71°
18
Partly sunny, hot and humid
91°
70°
19
Hot with decreasing clouds
91°
72°
20
Mostly sunny and very warm
90°
71°
21
Not as warm
82°
60°
22
Shifting clouds and sun
81°
62°
23
Mostly sunny
81°
61°
24
A little afternoon rain
82°
64°
25
Partly sunny
84°
68°
26
Mostly sunny
89°
69°
27
Sunshine
90°
69°
28
Sunshine
91°
70°
29
Mostly sunny
91°
67°
30
A shower and t-storm; humid
90°
60°
31
Clouds and sun; not as warm
81°
65°
1
Mostly sunny
82°
64°
2
An afternoon t-storm or two
88°
68°
3
A t-storm around in the p.m.
90°
69°
4
Partly sunny and humid
90°
67°
5
Mostly sunny
89°
62°

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 Manchester

Manchester's August 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 60° and 74°. The average high for August is 88° with an average low of 69°. 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 Manchester. See also: September | October | November.

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World North America United States Missouri Manchester

Weather Near Manchester:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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