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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Saint Charles, ID
Content continues below
May
Average Temperature
High
16°
Feels 15
Low
3°
Feels 1
Average Precipitation
5 Days
Rain amount
7.9mm
Snow amount
1cm
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Daily Historical Averages
May 2026
S
M
T
W
T
F
S
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
24°
26
19°
27
21°
28
24°
29
19°
30
18°
31
23°
Forecast
Monday, May 25, 2026
Day
24°
Feels 24
Wind
15 km/h S
Gust
23 km/h
Humidity
22%
P.O.P
40%
Rain
<1 mm
Night
9°
Feels 8
Wind
15 km/h S
Gust
23 km/h
Humidity
57%
P.O.P
30%
Historical Averages
May 25
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.