Lambert Saint Louis International Airport Weather Forecast
Local 7-day forecast
Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Lambert Saint Louis International Airport in one place.
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 97. Heat index values as high as 107. Southwest wind around 6 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Lambert Saint Louis International Airport is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 1, 2026 5:17 AM CDT.
The active forecast window currently covers Jul 2 to Jul 7, 2026 for Lambert Saint Louis International Airport.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 2 to Jul 7, 2026
- Latest sync
- Jul 1, 2026 5:17 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lambert–St. Louis International Airport
Thursday looks like the warmest upcoming period in Lambert–St. Louis International Airport at 97 degrees F.
Monday Night is the coolest period ahead with temperatures near 74 degrees F.
The strongest winds are forecast for Friday at about 2 to 7 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 1, 2026 5:17 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. South wind 2 to 6 mph. Chance of precipitation is 20%.
Sunny, with a high near 97.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 2
|
Sunny then Slight Chance Showers And Thunderstorms
|
97°F |
6 mph
SW
|
|
Thursday Night
Jul 2
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
78°F |
2 to 6 mph
S
|
|
Friday
Jul 3
|
Sunny
|
97°F |
2 to 7 mph
S
|
|
Friday Night
Jul 3
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
77°F |
3 to 7 mph
S
|
|
Independence Day
Jul 4
|
Chance Showers And Thunderstorms
|
95°F |
5 mph
SW
|
|
Saturday Night
Jul 4
|
Chance Showers And Thunderstorms
|
76°F |
5 mph
SW
|
|
Sunday
Jul 5
|
Chance Showers And Thunderstorms
|
93°F |
5 mph
W
|
|
Sunday Night
Jul 5
|
Chance Showers And Thunderstorms
|
75°F |
5 mph
NE
|
|
Monday
Jul 6
|
Chance Showers And Thunderstorms
|
91°F |
5 mph
NE
|
|
Monday Night
Jul 6
|
Chance Showers And Thunderstorms
|
74°F |
5 mph
E
|
|
Tuesday
Jul 7
|
Chance Showers And Thunderstorms
|
91°F |
5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lambert–St. Louis International Airport.
