St. Louis in June
In June, St. Louis averages 30°C (86°F) during the day and 20°C (67°F) at night, with frequent rain — about 17 days of the month see precipitation (137 mm total).
ShoulderConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
June offers comfortable temperatures in St. Louis, with some rain to plan around.
How June compares to the rest of the year in St. Louis
June is one of the warmest months in St. Louis (2nd of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 11°C above the annual average (19°C). June runs 5°C warmer than May (25°C) and warms a further 1°C into July (31°C).
June sunrise & sunset in St. Louis
Times shown for St. Louis local time (America/Chicago), calculated for the 15th of June. They shift by a few minutes day to day across the month.
Photography light in St. Louis — June
Golden-hour and blue-hour windows for the 15th of June, in St. Louis's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — St. Louis in June
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on June's tier (Shoulder) and St. Louis's popularity.
Crowds & pricing — June in St. Louis
St. Louis is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — June in St. Louis
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
St. Louis in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 5°C / 41°F | -4°C / 25°F | 74 mm | 13 | — |
| February | 7°C / 45°F | -4°C / 26°F | 72 mm | 13 | — |
| March | 13°C / 56°F | 3°C / 37°F | 133 mm | 16 | — |
| April | 19°C / 66°F | 8°C / 46°F | 132 mm | 16 | — |
| May | 25°C / 76°F | 14°C / 58°F | 130 mm | 20 | — |
| June | 30°C / 86°F | 20°C / 67°F | 137 mm | 17 | — |
| July | 31°C / 87°F | 21°C / 70°F | 152 mm | 17 | — |
| August | 30°C / 85°F | 20°C / 69°F | 140 mm | 18 | — |
| September | 27°C / 81°F | 17°C / 63°F | 112 mm | 13 | — |
| October | 20°C / 68°F | 10°C / 51°F | 106 mm | 14 | — |
| November | 12°C / 54°F | 3°C / 37°F | 77 mm | 12 | — |
| December | 8°C / 46°F | -1°C / 31°F | 76 mm | 10 | — |
Other cities with similar June weather
🌍 See the full ranked list of climate twins for St. Louis in June →
Frequently asked questions
How hot is St. Louis in June?
In June, St. Louis averages a high of 30°C (86°F) and a low of 20°C (67°F) — generally hot.
Does it rain a lot in St. Louis in June?
June is quite rainy in St. Louis, with about 17 rainy days on average.
Is June a good time to visit St. Louis?
June is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for St. Louis in June?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full June packing list for St. Louis for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.