Saint-Louis

Current Weather

25°76°

Partly Cloudy

Feels Like: 23°73°

Min: 21°69°

Max: 28°83°

The next few hours will be humid and partly cloudy, with today reaching 28°C and dropping to 19°C. The coming days will be drizzle

Hourly Forecast
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Air Quality
35
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous
Daylight Hours

05:46

Sunrise

18:19

Sunset

12 hours 32 minutes of sunlight today
Moon

10:28

Moonrise

00:25

Moonset

Daily Forecast

Today

21°69°
28°83°

Sunday

19°66°
26°80°

Monday

18°64°
27°80°

Tuesday

18°64°
27°81°

Wednesday

18°65°
27°81°

Thursday

19°66°
27°81°

Friday

21°70°
28°82°

Saturday

19°66°
28°82°

Sunday

21°70°
27°80°

Monday

21°70°
25°78°
UV Index
No protection needed
1Low
LowExtreme
Humidity
75%Humid
LowHigh
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Weather in Saint-Louis today, October 17, 2026

Saint-Louis looks damp on October 17, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly.Saint-Louis looks damp on October 17, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly.

Expect highs of 28°C and cooler readings close to 21°C. Moisture in the air spans 74%-90%, with the highest values around 22:00. A lighter breeze peaks around 17:00 near 10 km/h.Expect highs of 83°F and cooler readings close to 69°F. Moisture in the air spans 74%-90%, with the highest values around 22:00. A lighter breeze peaks around 17:00 near 6 mph.

Through the afternoon wet weather remains a factor, with rain chances near 54% around 17:00. Cloud also stays substantial, close to 51% near 17:00. Views remain open at about 16.1 km. Daylight runs from 05:46 to 18:19, lasting 12 hours 32 minutes of sunlight today.Through the afternoon wet weather remains a factor, with rain chances near 54% around 17:00. Cloud also stays substantial, close to 51% near 17:00. Views remain open at about 10 mi. Daylight runs from 05:46 to 18:19, lasting 12 hours 32 minutes of sunlight today.

The practical takeaway for Saint-Louis on October 17, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 28°C.The practical takeaway for Saint-Louis on October 17, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 83°F.

Frequently asked questions about weather in Saint-Louis

How warm does it get in Saint-Louis?

The warmest month in Saint-Louis is February, with average high temperatures of 26°C. The average temperature during this period is around 23°C.The warmest month in Saint-Louis is February, with average high temperatures of 78°F. The average temperature during this period is around 73°F.

How cold does it get in Saint-Louis?

The coldest month in Saint-Louis is August, with average low temperatures of 15°C. The average temperature during this period is around 17°C.The coldest month in Saint-Louis is August, with average low temperatures of 58°F. The average temperature during this period is around 63°F.

What is the wettest time of year in Saint-Louis?

The wettest month in Saint-Louis is January, with an average of 308 mm of precipitation.The wettest month in Saint-Louis is January, with an average of 12.1 in of precipitation.

What is the driest time of year in Saint-Louis?

The driest month in Saint-Louis is September, with an average of 46 mm of precipitation.The driest month in Saint-Louis is September, with an average of 1.8 in of precipitation.

View full climate insights for Saint-Louis →