St. Louis Klima and Average Vær
Klima of St. Louis: average temperatures, rainfall and seasons month by month.
Klima in St. Louis month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | 2° | -6° | 74 mm | ★★☆☆☆ |
| februar | 9° | -1° | 35 mm | ★★★☆☆ |
| mars | 17° | 5° | 104 mm | ★★★☆☆ |
| april | 21° | 11° | 180 mm | ★★★☆☆ |
| mai | 24° | 14° | 152 mm | ★★★★☆ |
| juni | 30° | 20° | 149 mm | ★★★★☆ |
| juli | 31° | 22° | 137 mm | ★★★★☆ |
| august | 30° | 21° | 66 mm | ★★★★☆ |
| september | 29° | 19° | 63 mm | ★★★★☆ |
| oktober | 21° | 11° | 49 mm | ★★★★☆ |
| november | 14° | 5° | 85 mm | ★★★☆☆ |
| desember | 8° | -0° | 62 mm | ★★★☆☆ |
Klima type: Kontinental. Kilde: Open-Meteo archive (ERA5).
Recent extremes in St. Louis
Høyest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How St. Louis compares med nearby places
Annual averages, and the difference against St. Louis.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Gateway Arch National Park | 1 km | 15°C | about the same | 1156 mm |
| Illinois | 137 km | 13°C | 1°C cooler | 939 mm |
| Starved Rock State Park | 317 km | 12°C | 3°C cooler | 1052 mm |
| Branson | 345 km | 16°C | +1°C warmer | 1119 mm |
| Indianapolis | 371 km | 13°C | 2°C cooler | 1135 mm |
Beste tid å besøke St. Louis
Go in august, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, februar and desember - expect the least comfortable mix of heat, cold or rain.
What this means for St. Louis
Today is warmer than average for september. The forecast high of 34°C is 5°C above the 29°C typical for this month.
Regn is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juni til august.
The gap between the warmest and coldest month averages 28°C.
What til pack, what til skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sønglasses, a brimmed hat and SPF 30+
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
- If your dates are flexible, avoid januar, februar and desember - historically the least comfortable months here.
Sammendrag
St. Louis is a city in Missouri. St. Louis is known for Gateway Arch and blues. Befolkningen er rundt 290.000.
Akkurat nå er det 18°C (65°F) in St. Louis med overskyet. Det føles som 17°C. I dag varierer temperaturen mellom 18°C til 34°C. Sannsynligheten for nedbør er 4%. Sightseeing conditions score 9.6/10 - utmerket — dra nå.
Beste tidspunkt å besøke St. Louis is august, september and oktober. Klimaet er continental. januar, februar and desember tend til be the least comfortable months. juli is the warmest month med average highs near 31°C, while januar is the coldest med lows near -6°C.
The closest major airport is Nashville International Airport (BNA), about 417 km away. Nearby highlights include Gateway Arch National Park, Starved Rock State Park and Mammoth Cave National Park.
Kort sagt. Today is warmer than average for september. The forecast high of 34°C is 5°C above the 29°C typical for this month. The best window til be outside is roughly 8 AM til 11 AM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in St. Louis today at 9.6/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about St. Louis
| Type | City |
|---|---|
| State | Missouri |
| Land | USA |
| Kontinent | Nord-Amerika |
| Koordinater | 38°37′37.2″N 90°11′57.8″W (38.627, -90.1994) |
| Befolkning | 290.000 |
| Known for | Gateway Arch and blues |
| Lokal tid | 7:04 PM (UTC-05:00) |
| Best months | august, september and oktober |
| Klima | Kontinental |
Vær map for St. Louis
Animated model layers. Pick a layer til load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore St. Louis
Every topic we hold for this place, and the same topic for the places around it.
Klima for related places
Frequently asked questions
Where is St. Louis?
St. Louis is a city in Missouri. Its coordinates are 38.627, -90.1994. It lies in Nord-Amerika.
What is the weather like in St. Louis akkurat nå?
It is currently 18°C (65°F) med overskyet. Luftfuktighet is 65% and wind is 10 km/h.
When is the best time til visit St. Louis?
august, september and oktober offer the most comfortable conditions in St. Louis, which has a continental climate. januar, februar and desember are usually the hardest months for outdoor plans.
What time zone is St. Louis in?
St. Louis observes America/Chicago (UTC-05:00). The local time is 7:04 PM.
How many people live in St. Louis?
St. Louis has a population of approximately 290.000.
What is the nearest airport til St. Louis?
The closest airports are Nashville International Airport (BNA), 417 km away and O'Hare International Airport (ORD), 420 km away.
What are the top things til do in St. Louis?
Popular options include Gateway Arch National Park, Starved Rock State Park and Mammoth Cave National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Værmelding and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vær Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated september 30, 2026 at 7:04 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
