Saint Charles Weather in July
Average highs run from 82°F on July 1 to 82°F on July 31, and lows from 63°F to 64°F. Normal precipitation for the month is 4.00 in over about 10 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
- 83°F
- Average low
- 64°F
- Precipitation
- 4.00 in
- Record high
- 108°FJul 14, 1995
- Record low
- 48°FJul 2, 2001
- Chance of a freeze
- 0%
- Days of 90°F or more
- 5.9
- Daylight
- 15 h 26 min to 14 h 37 min
- Cloud cover
- 51%
- Humidity
- 76%
- Dew point
- 63°F
- Wind
- 8.7 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 | 82°F | 63°F | 93°F 2002 | 50°F 1995 | 35% | 0% |
| Jul 2 | 82°F | 63°F | 96°F 1949 | 48°F 2001 | 35% | 0% |
| Jul 3 | 82°F | 63°F | 97°F 1949 | 49°F 1995 | 35% | 0% |
| Jul 4 | 82°F | 63°F | 98°F 1949 | 53°F 1997 | 35% | 0% |
| Jul 5 | 82°F | 63°F | 99°F 2012 | 52°F 1997 | 34% | 0% |
| Jul 6 | 82°F | 64°F | 94°F 2012 | 51°F 2023 | 34% | 0% |
| Jul 7 | 82°F | 64°F | 100°F 2012 | 50°F 1997 | 34% | 0% |
| Jul 8 | 83°F | 64°F | 99°F 2012 | 51°F 1997 | 34% | 0% |
| Jul 9 | 83°F | 64°F | 99°F 1976 | 51°F 1997 | 33% | 0% |
| Jul 10 | 83°F | 64°F | 101°F 1976 | 50°F 1997 | 33% | 0% |
| Jul 11 | 83°F | 64°F | 94°F 1976 | 53°F 1999 | 33% | 0% |
| Jul 12 | 83°F | 64°F | 94°F 1943 | 51°F 1941 | 33% | 0% |
| Jul 13 | 83°F | 64°F | 97°F 1995 | 52°F 1940 | 33% | 0% |
| Jul 14 | 83°F | 64°F | 108°F 1995 | 54°F 2001 | 32% | 0% |
| Jul 15 | 83°F | 64°F | 102°F 1995 | 55°F 2014 | 32% | 0% |
| Jul 16 | 83°F | 65°F | 95°F 1942 | 55°F 2009 | 32% | 0% |
| Jul 17 | 83°F | 65°F | 96°F 1997 | 54°F 1943 | 32% | 0% |
| Jul 18 | 83°F | 65°F | 99°F 2005 | 54°F 2000 | 32% | 0% |
| Jul 19 | 83°F | 65°F | 96°F 1940 | 54°F 2000 | 32% | 0% |
| Jul 20 | 83°F | 65°F | 96°F 1940 | 53°F 2007 | 32% | 0% |
| Jul 21 | 83°F | 65°F | 95°F 1940 | 51°F 1992 | 32% | 0% |
| Jul 22 | 83°F | 65°F | 96°F 1940 | 50°F 1992 | 32% | 0% |
| Jul 23 | 83°F | 65°F | 99°F 1940 | 54°F 1992 | 32% | 0% |
| Jul 24 | 83°F | 65°F | 96°F 1941 | 53°F 2004 | 32% | 0% |
| Jul 25 | 83°F | 65°F | 99°F 1999 | 54°F 1992 | 32% | 0% |
| Jul 26 | 83°F | 65°F | 99°F 1995 | 54°F 2004 | 32% | 0% |
| Jul 27 | 83°F | 65°F | 94°F 1941 | 50°F 2013 | 32% | 0% |
| Jul 28 | 83°F | 64°F | 94°F 2023 | 50°F 2013 | 32% | 0% |
| Jul 29 | 83°F | 64°F | 97°F 2002 | 52°F 1971 | 32% | 0% |
| Jul 30 | 83°F | 64°F | 98°F 1999 | 53°F 1971 | 31% | 0% |
| Jul 31 | 82°F | 64°F | 100°F 1999 | 50°F 1992 | 31% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- July 1
- sunrise 5:29 AM, sunset 8:55 PM
- July 31
- sunrise 5:56 AM, sunset 8:33 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00215488 (Minnesota City Dam 5), public domain. Records: NOAA GHCN-Daily, station USC00219072, 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.