St. Charles weather in June: St. Charles, Missouri: normal highs, lows, rain and records for June
St. Charles in June has a normal high of 86°F and a normal low of 65°F, a daily mean of 75°F, rising from 82°F on the 1st to 89°F by the 30th. Measurable precipitation falls on 11 days in a normal June, 4.55 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 18°C, 116 mm of precipitation in June.
- NOAA stationSt Charles County Airport
- Station IDUSW00053904
- Location38.93°N 90.43°W
- Elevation436 ft (133 m)
- Population72,458
- Jan 40° 22°
- Feb 45° 26°
- Mar 56° 34°
- Apr 68° 45°
- May 77° 56°
- Jun 86° 65°
- Jul 89° 68°
- Aug 88° 66°
- Sep 81° 57°
- Oct 69° 46°
- Nov 55° 35°
- Dec 44° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is St. Charles in June?
The normal high is 86°F and the normal low 65°F, for a daily mean of 75.4°F. June is 8.8°F warmer than May and 3.2°F cooler than July. June is the 3rd warmest month of the year in St. Charles and the 2nd wettest. Across the month the normal high rises 7°F, from 82°F on June 1 to 89°F on June 30. From one year to the next June's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Junes in three average between 73°F and 78°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 41%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| June 1 | 82°F | 61°F | 41% | 25% |
| June 8 | 84°F | 63°F | 39% | 24% |
| June 15 | 86°F | 65°F | 38% | 24% |
| June 22 | 88°F | 67°F | 36% | 23% |
| June 30 | 89°F | 68°F | 33% | 21% |
Every day of June: normal high, low and chance of precipitation (warmest afternoon June 30, coldest night June 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| June 1 | 82°F | 61°F | 41% | 25% | 14 h 40 min |
| June 2 | 82°F | 62°F | 40% | 24% | 14 h 40 min |
| June 3 | 83°F | 62°F | 40% | 24% | 14 h 40 min |
| June 4 | 83°F | 62°F | 40% | 24% | 14 h 40 min |
| June 5 | 83°F | 63°F | 40% | 24% | 14 h 50 min |
| June 6 | 84°F | 63°F | 40% | 24% | 14 h 50 min |
| June 7 | 84°F | 63°F | 40% | 24% | 14 h 50 min |
| June 8 | 84°F | 63°F | 39% | 24% | 14 h 50 min |
| June 9 | 85°F | 64°F | 39% | 24% | 14 h 50 min |
| June 10 | 85°F | 64°F | 39% | 24% | 14 h 50 min |
| June 11 | 85°F | 64°F | 39% | 24% | 14 h 50 min |
| June 12 | 85°F | 64°F | 39% | 24% | 14 h 50 min |
| June 13 | 86°F | 65°F | 38% | 24% | 14 h 50 min |
| June 14 | 86°F | 65°F | 38% | 24% | 14 h 50 min |
| June 15 | 86°F | 65°F | 38% | 24% | 14 h 50 min |
| June 16 | 86°F | 65°F | 38% | 24% | 14 h 50 min |
| June 17 | 87°F | 66°F | 37% | 23% | 14 h 50 min |
| June 18 | 87°F | 66°F | 37% | 23% | 14 h 50 min |
| June 19 | 87°F | 66°F | 37% | 23% | 14 h 50 min |
| June 20 | 87°F | 66°F | 37% | 23% | 14 h 50 min |
| June 21 | 87°F | 66°F | 36% | 23% | 14 h 50 min |
| June 22 | 88°F | 67°F | 36% | 23% | 14 h 50 min |
| June 23 | 88°F | 67°F | 36% | 22% | 14 h 50 min |
| June 24 | 88°F | 67°F | 35% | 22% | 14 h 50 min |
| June 25 | 88°F | 67°F | 35% | 22% | 14 h 50 min |
| June 26 | 88°F | 67°F | 35% | 22% | 14 h 50 min |
| June 27 | 88°F | 67°F | 34% | 22% | 14 h 50 min |
| June 28 | 88°F | 67°F | 34% | 21% | 14 h 50 min |
| June 29 | 89°F | 67°F | 34% | 21% | 14 h 50 min |
| June 30 | 89°F | 68°F | 33% | 21% | 14 h 50 min |
- Normal high
- 86°FJune average
- Normal low
- 65°FJune average
- Precipitation
- 4.55 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 10
- Daylight
- 14 h 40 min to 14 h 50 minJune 1 to June 30
- Days at 70°F or more
- 29
- Days at 80°F or more
- 25
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053904; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in St. Charles in June?
On a given June day the chance of 0.01 inch or more is 37% on average, highest around June 1 (41%). In all, 4.55 in falls on 11 days of a normal June, 1 of them with an inch or more.
In a normal June in St. Charles, 10 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053904.
What are the records for June in St. Charles?
The June mean against the 1991-2020 normal of 75.4°F: 2021 78.0°F (+2.6), 2022 77.2°F (+1.8), 2023 74.5°F (−1.0), 2025 76.2°F (+0.8), 2026 74.8°F (−0.6). 3 of 5 ran warmer than normal.
| June | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 78.0°F | +2.6°F | 5.98 in |
| 2022 | 77.2°F | +1.8°F | 2.15 in |
| 2023 | 74.5°F | −1.0°F | 1.82 in |
| 2025 | 76.2°F | +0.8°F | 5.23 in |
| 2026 | 74.8°F | −0.6°F | 4.24 in |
Source: recent months: ACIS, station USW00053904. Records and recent months use complete months only.
How does June in St. Charles compare across Missouri?
Across the 134 places PlainClimate covers in Missouri, June normal highs run from 80°F in Grant City to 90°F in Malden; St. Charles's is 86°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.