St. Louis, MO Weather
St. Louis, MO climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 30's.
The warmest month of the year is July with an average maximum temperature of 90.50 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 21.20 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 20 degrees Fahrenheit, and fairly limited during winter with an average difference of 18 degrees Fahrenheit.
The annual average precipitation at St. Louis is 38.84 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is November with an average rainfall of 4.06 Inches.
Weather Data
Current Conditions
|
Overcast, 35°F | Humidity: 40% | Dewpoint: 13°F |
| Wind Speed: S 10 MPH | Heat Index: 35°F | ||
| Barometer: 30.42 in. | Wind Chill: 27°F |
Weather Forecast
 | Hi: 41°F | Rest of today: Not as cold. Mostly cloudy. High in the lower 40s. South wind around 10 mph. |
| Lo: 31°F | ||
 | Hi: 50°F | Sunday: Mostly sunny in the morning then becoming partly sunny. High around 50. South wind around 10 mph. |
| Lo: 39°F | ||
 | Hi: 45°F | Monday: Breezy. Mostly cloudy early in the morning then becoming partly cloudy. High in the mid 40s. Northwest wind 15 to 20 mph with gusts to around 30 mph. |
| Lo: 30°F | ||
| Hi: 45°F | Tuesday: Mostly sunny. High in the mid 40s. |
| Lo: 29°F | ||
| Hi: 50°F | Wednesday: Sunny. High around 50. |
| Lo: 39°F | ||
| Hi: 50°F | Thanksgiving day: Partly cloudy. High around 50. Low in the upper 30s. |
| Lo: 39°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waning Crescent Moon | Civil Twilight: 6:21 AM CST |
Sunrise: 6:50 AM CST |
| Sunset: 4:43 PM CST |
Civil Twilight: 5:12 PM CST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 37.8 | 44.5 | 54.9 | 66.3 | 76.8 | 85.7 | 90.5 | 88.0 | 80.7 | 69.4 | 54.4 | 42.2 | 65.9 |
| Mean °F | 29.5 | 35.3 | 45.7 | 56.6 | 66.8 | 75.9 | 80.7 | 78.3 | 70.7 | 59.4 | 46.0 | 34.6 | 56.6 |
| Min °F | 21.2 | 26.1 | 36.5 | 46.9 | 56.8 | 66.1 | 70.9 | 68.6 | 60.7 | 49.4 | 37.5 | 26.9 | 47.3 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 2.01 | 2.06 | 3.70 | 3.82 | 3.92 | 3.73 | 3.78 | 3.70 | 2.69 | 2.81 | 4.06 | 2.56 | 38.84 |
