St. Louis Väder Prognos
St. Louis weather: 22°C, klart. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Sammanfattning
St. Louis is a city in Missouri. St. Louis is known for Gateway Arch and blues. Befolkningen är cirka 290.000.
Just nu är det 22°C (71°F) in St. Louis med klart. Det känns som 23°C. I dag varierar temperaturen mellan 21°C och 38°C. Risken för nederbörd är 16%. Sightseeing conditions score 9.2/10 - utmärkt — åk nu.
Bästa tiden att besöka St. Louis is augusti, september and oktober. Klimatet är continental. januari, februari and december tend och be the least comfortable months. juli is the warmest month med average highs near 31°C, while januari 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.
Enkelt förklarat. Today is much warmer than average for september. The forecast high of 38°C is 9.9°C above the 28°C typical for this month. The best window och be outside is roughly 7 AM och 10 AM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in St. Louis today at 9.5/10. 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.
Active alerts for St. Louis
Heat Advisory issued september 15 at 1:44AM CDT until september 15 at 7:00PM CDT by NWS St Louis MO
Issued by NWS St Louis MO
Vädret i St. Louis just nu
Open-Meteo Updated 3:13 AM, sep 15 local time.
Se prognosen för St. Louis per tidsintervall
Nästa 24 timmar
Temperatur, nederbörd och vind timme för timme.
16-day forecast for St. Louis
Max / Min; Nederb.; UV
| Dag | Förhållanden | Max / Min | Nederb. | Vind | UV |
|---|---|---|---|---|---|
| tis, sep 15 | ☁️ Mulet | 38° / 21° | 16% | 22 km/h | 6 |
| ons, sep 16 | 🌦️ Light drizzle | 35° / 24° | 20% · 1 mm | 22 km/h | 6 |
| tor, sep 17 | 🌦️ Light drizzle | 39° / 26° | 20% · 0 mm | 17 km/h | 6 |
| fre, sep 18 | 🌦️ Light drizzle | 39° / 27° | 5% · 0 mm | 15 km/h | 6 |
| lör, sep 19 | ☁️ Mulet | 39° / 27° | 10% | 14 km/h | 6 |
| sön, sep 20 | 🌦️ Light drizzle | 37° / 28° | 17% · 0 mm | 14 km/h | 6 |
| mån, sep 21 | 🌦️ Light drizzle | 31° / 23° | 18% · 2 mm | 12 km/h | 4 |
| tis, sep 22 | 🌤️ Mest klart | 32° / 22° | 8% | 13 km/h | 6 |
| ons, sep 23 | ☁️ Mulet | 35° / 22° | 14% | 15 km/h | 5 |
| tor, sep 24 | 🌦️ Light drizzle | 25° / 18° | 11% · 1 mm | 23 km/h | 6 |
| fre, sep 25 | ☀️ Klart | 25° / 14° | 8% | 14 km/h | 6 |
| lör, sep 26 | ☀️ Klart | 29° / 16° | 13% | 11 km/h | 6 |
| sön, sep 27 | ☀️ Klart | 32° / 17° | 14% | 11 km/h | 6 |
| mån, sep 28 | ☁️ Mulet | 32° / 21° | 10% | 15 km/h | 5 |
| tis, sep 29 | 🌦️ Duggregn | 30° / 22° | 16% · 3 mm | 13 km/h | 4 |
| ons, sep 30 | ☀️ Klart | -- / -- | 26% | -- | — |
Klimat in St. Louis month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | 2° | -6° | 74 mm | ★★☆☆☆ |
| februari | 9° | -1° | 35 mm | ★★★☆☆ |
| mars | 17° | 5° | 104 mm | ★★★☆☆ |
| april | 21° | 11° | 180 mm | ★★★☆☆ |
| maj | 24° | 14° | 152 mm | ★★★★☆ |
| juni | 30° | 20° | 149 mm | ★★★★☆ |
| juli | 31° | 22° | 137 mm | ★★★★☆ |
| augusti | 30° | 21° | 56 mm | ★★★★☆ |
| september | 28° | 17° | 70 mm | ★★★★☆ |
| oktober | 21° | 11° | 49 mm | ★★★★☆ |
| november | 14° | 5° | 85 mm | ★★★☆☆ |
| december | 8° | -0° | 62 mm | ★★★☆☆ |
Klimat type: Kontinental. Källa: Open-Meteo archive (ERA5).
Väder map for St. Louis
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Luftkvalitet and pollen in St. Louis
Luftkvalitet: Open-Meteo (CAMS). US AQI scale.
sön, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Bästa tiden att besöka St. Louis
Go in augusti, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januari, februari and december - expect the least comfortable mix of heat, cold or rain.
Explore St. Louis
Every topic we hold for this place, and the same topic for the places around it.
Väder 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 Nordamerika.
What is the weather like in St. Louis just nu?
It is currently 22°C (71°F) med klart. Luftfuktighet is 76% and wind is 11 km/h.
When is the best time och visit St. Louis?
augusti, september and oktober offer the most comfortable conditions in St. Louis, which has a continental climate. januari, februari and december 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 3:13 AM.
How many people live in St. Louis?
St. Louis has a population of approximately 290.000.
What is the nearest airport och 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 och 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. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder 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 15, 2026 at 3:13 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
