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Potosi, MO

76°F
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Potosi

Missouri

76°
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Potosi, 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

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
80°
50°
27
82°
59°
28
68°
55°
29
64°
48°
30
66°
39°
1
63°
42°
2
61°
40°
3
Sunny, breezy and warmer
77°
57°
4
Warm with clouds and sun
82°
58°
5
Rain and a t-storm; cooler
65°
44°
6
An afternoon shower or two
59°
43°
7
Partly sunny
65°
44°
8
Mostly cloudy with a shower
68°
48°
9
Mostly sunny and pleasant
72°
55°
10
Mostly cloudy
67°
52°
11
Cloudy with a little rain
69°
51°
12
Times of clouds and sun
68°
51°
13
Plenty of sun
72°
56°
14
An afternoon t-storm or two
73°
53°
15
Brilliant sunshine
72°
55°
16
Cloudy and humid
74°
54°
17
A shower and thunderstorm
75°
58°
18
Some sun, a couple of showers
72°
59°
19
Partly sunny and humid
76°
58°
20
Sunny and less humid
72°
53°
21
Mostly sunny
75°
51°
22
Sunny
68°
51°
23
Increasing clouds
69°
52°
24
Some sun, then clouds
69°
53°
25
Rain
70°
52°
26
Mostly sunny
69°
52°
27
Partly sunny
70°
53°
28
Cloudy with a shower in spots
71°
57°
29
Partly sunny
72°
58°
30
Cloudy, a shower and t-storm
76°
62°
31
Rain becoming steadier; humid
73°
61°
1
Less humid with plenty of sun
73°
56°
2
Plenty of sun
74°
57°
3
Increasing clouds
74°
60°
4
Partly sunny
75°
63°
5
A couple of morning showers
77°
64°
6
A bit of rain in the morning
76°
64°

Temperature Graph

°F
90° 78° 66° 54° 42° 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 Potosi

Potosi's May 2026 forecast shows daily high temperatures ranging from 59° to 82°, with overnight lows between 43° and 64°. The average high for May is 72° with an average low of 55°. 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 Potosi. See also: June | July | August.

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World North America United States Missouri Potosi

Weather Near Potosi:

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