New York, NY 89° Los Angeles, CA 86° Chicago, IL 102° Houston, TX 80° Miami, FL 82° Phoenix, AZ 101° Seattle, WA 61° Denver, CO 87° Toronto, ON 79° Vancouver, BC 62°
WeatherLive › Missouri › St. Louis

St. Louis, MO Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSt. Louis · 2:28 PM CDT
101° | 78°
99°F
Feels like 99°
Partly cloudy
+17° vs. normal — warmer than usual for this time of year
WindSW 9 mph · Gusts 13 mph
Precip4% · –
Humidity33% · Dew point 65°
UV index9 Very high
Air Quality115 Unhealthy for Sensitive Groups
Pressure29.91 inHg
Visibility6 mi
Sunrise / Sunset6:31 AM · 7:28 PM · 12h 57m

Weather map — St. Louis

Full radar →
Now
99°
2%
9 mph
15:00
99°
2%
9 mph
16:00
101°
2%
10 mph
17:00
101°
1%
11 mph
18:00
99°
1%
11 mph
19:00
97°
9%
9 mph
20:00
94°
9%
6 mph
21:00
92°
3%
6 mph
22:00
90°
5%
9 mph
23:00
90°
8%
9 mph
00:00
90°
6%
11 mph
01:00
89°
1%
11 mph
02:00
87°
1%
9 mph
03:00
86°
1%
8 mph
04:00
85°
1%
7 mph
05:00
84°
2%
6 mph
06:00
83°
2%
7 mph
07:00
83°
2%
7 mph
08:00
84°
2%
7 mph
09:00
88°
2%
8 mph
10:00
92°
4%
8 mph
11:00
96°
1%
7 mph
12:00
98°
0%
7 mph
13:00
100°
0%
8 mph

Today · Thu 9/3

High 101°
4% / –

Sunny. Winds S at 11 mph.

Tonight · Thu 9/3

Low 83°
3% / –

Partly cloudy. Winds S at 6 mph.

Tomorrow · Fri 9/4

102° | 83°
1% / –

Sunny. Winds S at 11 mph.

7-day trend

St. Louis · temperature + precipitation

10-day forecast

Updated 2:28 PM

Details & indices

Wind
9 mph SW
Gusts 13 mph
Humidity
33%
Dew point 65°
Pressure
29.91 inHg
Rising
UV index
9 — Very high
High today
Air Quality
Unhealthy for Sensitive Groups
AQI 115 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — St. Louis

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
High

Sun & moon

Sunrise6:31 AM
Sunset7:28 PM
Length of day12h 57m
Moonrise11:00 PM
Moonset1:44 PM
Moon phase🌗 Last Quarter · 56%
Next full moonSep 26 Harvest Moon
Latitude38.6273°N
Longitude-90.1979°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
1991-2020 climate normals — St. Louis

Monthly normals

Full climate page →
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max (°F) 40° 47° 58° 67° 77° 87° 89° 86° 82° 69° 55° 48°
Min (°F) 25° 28° 38° 46° 58° 67° 71° 69° 63° 51° 38° 32°
Precip (in) 3.5 3.0 5.6 5.3 5.7 4.8 6.8 5.0 4.8 3.8 3.1 2.9
Warmest: Jul · ⌀ 89°F Coldest: Jan · ⌀ 25°F Wettest: Jul · 6.8 in
Nearby places in {{REGION}}
Kansas City
Sunny
104° 🌤️
Springfield
—
—
Data sources · Thursday, September 3
Where the St. Louis forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 38.6273°N, -90.1979°.
NBM + global weather models
Updated: 2:28 PM
ZIP codes in St. Louis
📮
63101
St. Louis
 📮
63102
St. Louis
 📮
63103
St. Louis
 📮
63104
St. Louis
 📮
63106
St. Louis
 📮
63107
St. Louis
 📮
63110
St. Louis
 📮
63118
St. Louis
 📮
63150
St. Louis
 📮
63155
St. Louis
 📮
63169
St. Louis
 📮
63180
St. Louis
 📮
63182
St. Louis
 📮
63188
St. Louis
 📮
63197
St. Louis
Weather in St. Louis
Over the next 10 days St. Louis tops out around 108° (Wednesday) and dips to 64° on the coolest night (Monday). The gauge should stay near zero — no meaningful precipitation is expected. Hold onto the patio furniture Thursday: gusts could hit 35 mph. Heads up: a Extreme Heat Warning is in effect — check the alerts tab before making plans. Right now St. Louis is running about 20° warmer than Champaign. Longer view: continental plains — big swings and a spring severe-storm season.
St. Louis, MO · Elev 466 ft · 38.63°N, 90.20°W · Missouri · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 2:28 PM