Saint Charles Weather in July
Average highs run from 85°F on July 1 to 86°F on July 31, and lows from 63°F to 64°F. Normal precipitation for the month is 4.32 in over about 8 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 86°F
- Average low
- 64°F
- Precipitation
- 4.32 in
- Record high
- 107°FJul 22, 1901
- Record low
- 42°FJul 30, 1971
- Chance of a freeze
- 0%
- Days of 90°F or more
- 7.3
- Daylight
- 15 h 06 min to 14 h 23 min
- Cloud cover
- 49%
- Humidity
- 71%
- Dew point
- 65°F
- Wind
- 8.3 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jul 1 | 85°F | 63°F | 99°F 1949 | 48°F 2004 | 31% | 0% |
| Jul 2 | 85°F | 63°F | 100°F 1970 | 49°F 1904 | 30% | 0% |
| Jul 3 | 85°F | 63°F | 99°F 1949 | 48°F 2014 | 30% | 0% |
| Jul 4 | 85°F | 64°F | 100°F 1901 | 48°F 1967 | 30% | 0% |
| Jul 5 | 85°F | 64°F | 100°F 2012 | 43°F 1972 | 29% | 0% |
| Jul 6 | 85°F | 64°F | 102°F 1954 | 48°F 2006 | 29% | 0% |
| Jul 7 | 85°F | 64°F | 102°F 2012 | 50°F 1997 | 29% | 0% |
| Jul 8 | 85°F | 64°F | 105°F 2012 | 52°F 1979 | 29% | 0% |
| Jul 9 | 85°F | 64°F | 102°F 1901 | 53°F 1899 | 28% | 0% |
| Jul 10 | 86°F | 64°F | 101°F 1901 | 50°F 1978 | 28% | 0% |
| Jul 11 | 86°F | 64°F | 104°F 1954 | 52°F 1898 | 28% | 0% |
| Jul 12 | 86°F | 64°F | 104°F 1901 | 46°F 1975 | 28% | 0% |
| Jul 13 | 86°F | 64°F | 106°F 1954 | 47°F 1975 | 28% | 0% |
| Jul 14 | 86°F | 64°F | 102°F 1901 | 49°F 1975 | 27% | 0% |
| Jul 15 | 86°F | 64°F | 101°F 1901 | 51°F 1961 | 27% | 0% |
| Jul 16 | 86°F | 64°F | 101°F 1901 | 52°F 1958 | 27% | 0% |
| Jul 17 | 86°F | 64°F | 104°F 1954 | 50°F 2014 | 27% | 0% |
| Jul 18 | 86°F | 64°F | 103°F 1954 | 50°F 2014 | 27% | 0% |
| Jul 19 | 86°F | 64°F | 103°F 1954 | 52°F 1947 | 27% | 0% |
| Jul 20 | 86°F | 64°F | 104°F 1901 | 50°F 1970 | 27% | 0% |
| Jul 21 | 86°F | 64°F | 106°F 1974 | 51°F 1944 | 27% | 0% |
| Jul 22 | 86°F | 64°F | 107°F 1901 | 50°F 1947 | 27% | 0% |
| Jul 23 | 86°F | 64°F | 104°F 1901 | 51°F 1978 | 27% | 0% |
| Jul 24 | 86°F | 64°F | 107°F 1901 | 50°F 1904 | 27% | 0% |
| Jul 25 | 86°F | 64°F | 105°F 1940 | 50°F 1975 | 27% | 0% |
| Jul 26 | 86°F | 64°F | 105°F 2012 | 49°F 1962 | 27% | 0% |
| Jul 27 | 86°F | 64°F | 103°F 1956 | 48°F 2004 | 27% | 0% |
| Jul 28 | 86°F | 64°F | 101°F 1955 | 46°F 2013 | 27% | 0% |
| Jul 29 | 86°F | 64°F | 102°F 1947 | 47°F 1981 | 27% | 0% |
| Jul 30 | 86°F | 64°F | 105°F 1947 | 42°F 1971 | 27% | 0% |
| Jul 31 | 86°F | 64°F | 104°F 1955 | 47°F 1971 | 27% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- July 1
- sunrise 5:46 AM, sunset 8:52 PM
- July 31
- sunrise 6:10 AM, sunset 8:33 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00134063 (Indianola 2W), public domain. Records: NOAA GHCN-Daily, station USC00136316, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.