Weather in Saint Charles: May
 |
Average day temperature: | 72.3°F |
| Average night temperature: | 59.3°F | |
 |
Number of sunny days: | 12 days |
| Day length: | 13.8 - 14.7 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 1.7 in. | |
| more information | ||
14 days
forecast
forecast
| Saint Charles |
weather in
June
June
| Saint Charles |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 89°F. At the same time the lowest night temperature was 43°F. Daily and nightly averages during May were 74.7°F and 59.2°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Saint Charles in May is 1.7 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 8.0 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.0.
Best time for vacation in Saint Charles
Saint Charles on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Saint Charles
Local time: 11:27
October 29, thursday
1200
75°F
E
7 mph
7 mph
1500
81°F
E
6 mph
6 mph
1800
77°F
SE
4 mph
4 mph
2100
70°F
SW
7 mph
7 mph
October 30, friday
0000
66°F
SW
7 mph
7 mph
0300
63°F
SW
7 mph
7 mph
0600
63°F
W
9 mph
9 mph
0900
63°F
W
9 mph
9 mph
