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Bay, MO

65°F
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Bay, 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
3
Severe Thunderstorm Warning

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°
67°
1
Heavy rain and a thunderstorm
83°
63°
2
Sunny much of the time
82°
56°
3
Mostly sunny
81°
60°
4
Partly sunny
87°
64°
5
A shower and thunderstorm
84°
70°
6
A shower and t-storm; humid
83°
66°
7
An afternoon t-storm or two
83°
65°
8
Humid with a stray t-storm
85°
64°
9
A couple of t-storms; humid
86°
65°
10
Rain and a thunderstorm
84°
64°
11
Humid with occasional rain
83°
63°
12
Humid with decreasing clouds
83°
62°
13
Humid; a brief morning shower
82°
63°
14
A shower and thunderstorm
84°
60°
15
Clouds and humid; p.m. rain
85°
58°
16
Not as warm with rain
76°
57°
17
Cloudy
76°
57°
18
Rain in the afternoon
77°
62°
19
A shower and thunderstorm
78°
64°
20
Occasional morning rain
79°
65°
21
Turning cloudy and humid
81°
65°
22
A few morning showers
80°
64°
23
Gleaming sunshine
80°
63°
24
Mostly sunny
83°
65°
25
Sunny
85°
66°
26
A t-storm around in the p.m.
87°
66°
27
Humid with a thunderstorm
84°
65°
28
Humid; a shower in the a.m.
83°
66°
29
A shower and t-storm; humid
82°
66°
30
Mostly cloudy and humid
83°
65°
1
A shower and thunderstorm
80°
67°
2
Humid with clouds and sun
82°
67°
3
A shower and thunderstorm
85°
66°
4
Sunny and less humid
82°
62°

Temperature Graph

°F
90° 82° 74° 66° 58° 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 Bay

Bay's June 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 56° and 70°. The average high for June is 82° with an average low of 64°. 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 Bay. See also: July | August | September.

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World North America United States Missouri Bay

Weather Near Bay:

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