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Valmeyer, IL

64°F
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Valmeyer

Illinois

64°
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Valmeyer, 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

May

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
81°
51°
27
83°
61°
28
66°
55°
29
64°
50°
30
67°
40°
1
64°
44°
2
61°
44°
3
78°
41°
4
79°
58°
5
70°
46°
6
A shower this afternoon
64°
42°
7
Sun and some clouds
69°
51°
8
A t-storm around in the p.m.
73°
53°
9
Mostly sunny and warmer
80°
59°
10
Cooler; a morning shower
64°
44°
11
Sunny
67°
49°
12
Rain tapering off
72°
51°
13
Partly sunny and less humid
74°
55°
14
Mostly cloudy
77°
57°
15
Mostly sunny
76°
54°
16
A little afternoon rain
72°
55°
17
Rain in the morning
73°
54°
18
Times of clouds and sun
75°
55°
19
Times of clouds and sun
79°
54°
20
Rain
73°
53°
21
Cloudy with a touch of rain
71°
52°
22
Remaining cloudy
71°
53°
23
Mostly sunny
72°
54°
24
Mostly cloudy
73°
58°
25
Considerable cloudiness
73°
58°
26
Partial sunshine
74°
55°
27
Considerable cloudiness
74°
57°
28
Mostly cloudy
75°
54°
29
Plenty of sunshine
75°
55°
30
Sunshine
79°
59°
31
Partly sunny
78°
58°
1
Sunny
80°
62°
2
Mostly sunny
81°
62°
3
Sunny and humid
84°
63°
4
Becoming cloudy and humid
83°
64°
5
Mostly cloudy and humid
83°
64°
6
A couple of morning showers
84°
65°

Temperature Graph

°F
90° 80° 70° 60° 50° May
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 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

May Weather in Valmeyer

Valmeyer's May 2026 forecast shows daily high temperatures ranging from 64° to 84°, with overnight lows between 42° and 65°. The average high for May is 75° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Valmeyer. See also: June | July | August.

Further Ahead

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World North America United States Illinois Valmeyer

Weather Near Valmeyer:

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