Saint Charles Weather in March
Average highs run from 49°F on March 1 to 61°F on March 31, and lows from 29°F to 39°F. Normal precipitation for the month is 3.63 in over about 10 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 55°F
- Average low
- 34°F
- Precipitation
- 3.63 in
- Snowfall
- 0.5 in
- Record high
- 93°FMar 26, 2026
- Record low
- -5°FMar 5, 1960
- Chance of a freeze
- 99%
- Daylight
- 11 h 21 min to 12 h 37 min
- Cloud cover
- 66%
- Humidity
- 77%
- Dew point
- 36°F
- Wind
- 10.1 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 |
|---|---|---|---|---|---|---|
| Mar 1 | 49°F | 29°F | 78°F 1992 | 5°F 1962 | 27% | 3% |
| Mar 2 | 50°F | 29°F | 82°F 2022 | 2°F 1980 | 28% | 3% |
| Mar 3 | 50°F | 30°F | 85°F 1974 | 1°F 1943 | 28% | 3% |
| Mar 4 | 51°F | 30°F | 79°F 1974 | -1°F 1978 | 28% | 3% |
| Mar 5 | 51°F | 30°F | 84°F 1956 | -5°F 1960 | 28% | 3% |
| Mar 6 | 51°F | 31°F | 85°F 1956 | 2°F 1960 | 29% | 2% |
| Mar 7 | 52°F | 31°F | 85°F 1974 | 2°F 1943 | 29% | 2% |
| Mar 8 | 52°F | 31°F | 82°F 1974 | 4°F 1943 | 29% | 2% |
| Mar 9 | 52°F | 31°F | 79°F 1990 | 12°F 1969 | 29% | 2% |
| Mar 10 | 53°F | 32°F | 87°F 2026 | 12°F 1948 | 30% | 2% |
| Mar 11 | 53°F | 32°F | 85°F 1972 | 8°F 1948 | 30% | 2% |
| Mar 12 | 54°F | 32°F | 84°F 1972 | 1°F 1948 | 30% | 2% |
| Mar 13 | 54°F | 33°F | 83°F 2012 | 12°F 1968 | 30% | 2% |
| Mar 14 | 54°F | 33°F | 86°F 2012 | 13°F 1993 | 30% | 2% |
| Mar 15 | 55°F | 33°F | 82°F 2016 | 15°F 1949 | 31% | 1% |
| Mar 16 | 55°F | 34°F | 86°F 1945 | 17°F 1941 | 31% | 1% |
| Mar 17 | 56°F | 34°F | 83°F 2011 | 13°F 1941 | 31% | 1% |
| Mar 18 | 56°F | 34°F | 84°F 2025 | 15°F 1941 | 31% | 1% |
| Mar 19 | 56°F | 35°F | 82°F 2012 | 10°F 1965 | 31% | 1% |
| Mar 20 | 57°F | 35°F | 88°F 2026 | 13°F 1965 | 31% | 1% |
| Mar 21 | 57°F | 35°F | 87°F 1997 | 16°F 1960 | 32% | 1% |
| Mar 22 | 58°F | 36°F | 90°F 2026 | 19°F 2002 | 32% | 1% |
| Mar 23 | 58°F | 36°F | 84°F 1939 | 7°F 1974 | 32% | 1% |
| Mar 24 | 58°F | 36°F | 84°F 1967 | 3°F 1974 | 32% | 1% |
| Mar 25 | 59°F | 37°F | 83°F 2007 | 11°F 1955 | 32% | 1% |
| Mar 26 | 59°F | 37°F | 93°F 2026 | 5°F 1955 | 33% | 1% |
| Mar 27 | 60°F | 37°F | 86°F 1945 | 15°F 1955 | 33% | 1% |
| Mar 28 | 60°F | 38°F | 89°F 1985 | 24°F 1966 | 33% | 1% |
| Mar 29 | 60°F | 38°F | 88°F 1963 | 21°F 1970 | 33% | 1% |
| Mar 30 | 61°F | 38°F | 86°F 1986 | 18°F 1964 | 33% | 1% |
| Mar 31 | 61°F | 39°F | 87°F 1981 | 20°F 1969 | 33% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- March 1
- sunrise 6:34 AM, sunset 5:55 PM
- March 31
- sunrise 6:48 AM, sunset 7:25 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00237397 (St Charles Elm Pt), public domain. Records: NOAA GHCN-Daily, station USW00013994, 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.