Current Conditions

Saint-Louis, Grand Est

65°F18°C
Partly Cloudy

Wind

NNW 3 mph4 km/h

Humidity

34%

Cloud Cover

10%

As of Wednesday, September 23, 2026 at 9:27 PM GMT+2

Today's Outlook

Night

Mostly cloudy, with a low around 49°F10°C. Light wind from the E around 4 mph6 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 69°F21°CLow 49°F10°CPrecip 0 in0 mmCloud 80%Wind W 4 mph7 km/hThursday: Overcast and warm, with a high of 69°F21°C and morning low of 50°F10°C. Light wind from the W around 5 mph7 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 49°F10°C. Light wind from the E around 4 mph6 km/h.
ClearHigh 73°F23°CLow 45°F7°CPrecip 0 in0 mmCloud 30%Wind E 3 mph5 km/hFriday: Partly cloudy and warm, with a high of 73°F23°C and morning low of 45°F7°C. Light wind from the E around 3 mph4 km/h. Dry air. Friday Night: Partly cloudy, with a low around 46°F8°C. Light wind from the E around 3 mph5 km/h.
ClearHigh 77°F25°CLow 46°F8°CPrecip 0 in0 mmCloud 9%Wind S 3 mph4 km/hSaturday: Mostly clear and warm, with a high of 77°F25°C and morning low of 46°F8°C. Light wind from the SSW around 3 mph4 km/h. Dry air. Saturday Night: Mostly clear, with a low around 47°F9°C. Light wind from the SSE around 3 mph5 km/h.
ClearHigh 79°F26°CLow 49°F10°CPrecip 0 in0 mmCloud 22%Wind S 3 mph5 km/hSunday: Mostly clear and warm, with a high of 79°F26°C and morning low of 49°F10°C. Light wind from the S around 3 mph5 km/h. Dry air. Sunday Night: Mostly clear, with a low around 50°F10°C. Light wind from the SSE around 3 mph5 km/h.
Partly CloudyHigh 79°F26°CLow 55°F13°CPrecip 0.02 in0.5 mm9%Cloud 55%Wind SSE 3 mph5 km/hMonday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 55°F13°C. Light wind from the S around 3 mph4 km/h. Monday Night: Mostly cloudy, with a low around 55°F13°C. Light wind from the SE around 3 mph5 km/h.
Partly CloudyHigh 80°F27°CLow 56°F13°CPrecip 0.01 in0.2 mm5%Cloud 43%Wind SE 3 mph4 km/hTuesday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 56°F13°C. Light wind from the SE around 2 mph4 km/h. Tuesday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the SE around 3 mph4 km/h.
DrizzleHigh 80°F27°CLow 56°F13°CPrecip 0.02 in0.4 mm10%Cloud 45%Wind SSE 3 mph4 km/hWednesday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 56°F13°C. Light wind from the SE around 2 mph4 km/h. Wednesday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the SSE around 3 mph5 km/h. 10% chance of drizzle in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 2469°F21°C49°F10°C0 in0 mm· —80%Partly CloudyW 4 mph7 km/h
FridaySep 2573°F23°C45°F7°C0 in0 mm· —30%ClearE 3 mph5 km/h
SaturdaySep 2677°F25°C46°F8°C0 in0 mm· —9%ClearS 3 mph4 km/h
SundaySep 2779°F26°C49°F10°C0 in0 mm· —22%ClearS 3 mph5 km/h
MondaySep 2879°F26°C55°F13°C0.02 in0.5 mm· 9%55%Partly CloudySSE 3 mph5 km/h
TuesdaySep 2980°F27°C56°F13°C0.01 in0.2 mm· 5%43%Partly CloudySE 3 mph4 km/h
WednesdaySep 3080°F27°C56°F13°C0.02 in0.4 mm· 10%45%DrizzleSSE 3 mph4 km/h
ThursdayOct 172°F22°C57°F14°C0.19 in4.8 mm· 38%63%ShowersSW 3 mph5 km/h
FridayOct 268°F20°C56°F14°C0.21 in5.4 mm· 46%70%Light RainWNW 3 mph5 km/h
SaturdayOct 366°F19°C53°F12°C0.12 in3.1 mm· 28%64%ShowersN 3 mph5 km/h
SundayOct 466°F19°C51°F11°C0.1 in2.5 mm· 26%59%DrizzleNE 4 mph6 km/h
MondayOct 565°F18°C50°F10°C0.09 in2.4 mm· 21%57%DrizzleNE 4 mph6 km/h
TuesdayOct 664°F18°C50°F10°C0.08 in2.1 mm· 25%61%DrizzleENE 4 mph7 km/h
WednesdayOct 764°F18°C49°F9°C0.07 in1.8 mm· 18%60%DrizzleENE 4 mph6 km/h
ThursdayOct 865°F18°C49°F9°C0.07 in1.9 mm· 19%63%DrizzleSE 4 mph6 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 47.5921°N, 7.5592°E·Elevation: 248m·Timezone: Europe/Paris·Population: 20,871