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Saint Charles weather in July

Weather in Saint Charles: July

Average day temperature: 87.7°F
Average night temperature: 73.4°F
Number of sunny days: 14 days
Day length: 14.2 - 14.8 hours
Number of rainy days: 3 days
Precipitation totals: 1.3 in.

Air temperature in July, °F

Show year:
2026
2025
2024

The highest day temperature during July of 2026 was 103°F. At the same time the lowest night temperature was 64°F. Daily and nightly averages during July were 91.4°F and 73.1°F.

Sunny, partly cloudy and cloudy days

Mostly all days in July are sunny but cloudy days are also possible.

Precipitation total in July, in.

Precipitation total value in Saint Charles in July is 1.3 in. Other months of the year show relatively similar values.

Wind speed in July, mph

The average wind speed value in July is 6.2 mph It makes July lest windy month of the year.

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 July is: 9.5.

Best time for vacation in Saint Charles

Sunniest months:
October 19 days
September 18 days
August 16 days
Warmest months:
July 87.7 °F
August 86.3 °F
June 84.3 °F
Coldest months:
January 35.8 °F
February 42.0 °F
December 43.9 °F
Rainiest months:
May 4 days
April 3 days
March 3 days
Windiest months:
March 10.1 mph
April 9.8 mph
February 8.7 mph

Saint Charles on a weather map

Saint Charles
+75°F
E 7 mph
Feels like: +77°F
Precip.: 1%
Places in USA:
Name
°F
+63°F
+66°F
+77°F
+66°F
+68°F
+84°F
+70°F
+64°F
+68°F
+59°F
+68°F
+82°F
+82°F
+81°F
+66°F
24 Hours Forecast
Saint Charles
Local time: 12:23
October 29, thursday
1500
81°F
E
6 mph
1800
77°F
SE
4 mph
2100
70°F
SW
7 mph
October 30, friday
0000
66°F
SW
7 mph
0300
63°F
SW
7 mph
0600
63°F
W
9 mph
0900
63°F
W
9 mph
1200
70°F
W
9 mph
Units of measurement: °C / °F