St. Louis, MO weather in June
In June, St. Louis sees highs around 86°F and lows around 67°F: warm and often humid, with some rain. Rain falls on about 10 days.
- Normal high
- 86°F
- Normal low
- 67°F
- Wet days
- 10
- 4.5 in total
- Muggy days
- 14
- dew point 65°F+
How June changes from start to finish
| June 1 | June 30 | |
|---|---|---|
| Normal high | 82°F | 89°F |
| Normal low | 63°F | 70°F |
| Chance of a wet day | 36% | 31% |
| Sunrise / sunset | 5:38 am / 8:19 pm | 5:39 am / 8:29 pm |
| Daylight | 14.7 h | 14.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical June day
- 6 am70°Fdew point 63°F
- 9 am77°Fdew point 63°F
- Noon82°Fdew point 63°F
- 3 pm84°Fdew point 63°F
- 6 pm81°Fdew point 63°F
- 9 pm76°Fdew point 63°F
NOAA hourly normals (local standard time) from St Louis Lambert Intl Airport (13 mi away); average wind 8 mph; clear or few clouds in 20% of daytime hours, mostly cloudy or overcast in 53%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F4 of 30
- Hot dayshigh 90°F or more11 of 30
- Muggy daysdaily mean dew point 65°F or more14 of 30
- Wet daysat least 0.01 in of rain or melted snow10 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per June, counted from daily records for each year 1991-2020.
Rain in June
Normal precipitation is 4.5 in; a dry June brings about 2.2 in and a wet one about 5.8 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How June varies from year to year
- Warmest June, 1991-20202016: average high 91°F
- Coolest June2003: average high 80°F
- Wettest June2015: 13.1 in
- Driest June1991: 0.4 in
- Highest reading108°F (June 28, 2012)
- Lowest reading48°F (June 6, 1998)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
June compared with May and July
| May | June | July | |
|---|---|---|---|
| Normal high | 77°F | 86°F | 90°F |
| Normal low | 58°F | 67°F | 71°F |
| Wet days | 13 | 10 | 9 |
| Comfortable days | 12 | 4 | 1 |
| Daylight | 14.3 h | 14.8 h | 14.6 h |
Highs change by +9°F from May and +4°F into July.
Nearby alternatives in June
- Cooler: Joliet, IL229 mi · high 80°F · 11 wet days
How St. Louis ranks in June
- Normal high151st warmest of 378 cities; 2nd of 7 in Missouri
- Wet days181st driest of 378
- Comfortable days199th most of 340
What to pack for St. Louis in June
- Light, breathable clothing – highs near 86°F and about 14 muggy days
- A rain jacket or umbrella – rain on about 10 days
- Sunglasses and sunscreen – about 14.8 hours of daylight and highs near 86°F
Heating and cooling
June has 4 heating degree days and 351 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How hot is St. Louis in June?
The normal high is 86°F and the normal low is 67°F. From 1991 to 2020 the hottest June reading was 108°F (June 28, 2012).
Does it rain a lot in St. Louis in June?
About 10 days in June have at least 0.01 in of precipitation, and the normal total is 4.5 in. The wettest June in 1991-2020 was in 2015 (13.1 in); the driest was in 1991 (0.4 in).
Is June a good time to visit St. Louis?
June ranks 6th of 12 months on our comfort score for St. Louis (52 out of 100). It has about 4 comfortable days and about 11 days at 90°F or hotter. The best months are April and May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, humidity and wind by hour and cloud cover: St Louis Lambert Intl Airport (USW00013994), 13 mi NW of the city center, 531 ft (67 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Frost dates: Cahokia St Louis Airport (USW00003960), 4.4 mi SSE of the city center, 413 ft (51 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Lambert-St Louis International Airport (724340-13994), 13 mi NW of the city center, 531 ft (67 ft higher than the city). Hourly observations, 1991-2020.