Summit, MO Weather Forecast
Local 7-day forecast
Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Summit, MO in one place.
A chance of showers and thunderstorms after noon. Sunny, with a high near 90. Heat index values as high as 101. Northwest wind around 2 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Summit, MO 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 18, 2026 1:47 AM CDT.
The active forecast window currently covers Jul 19 to Jul 24, 2026 for Summit, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 19 to Jul 24, 2026
- Latest sync
- Jul 18, 2026 1:47 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Summit
Tuesday looks like the warmest upcoming period in Summit at 97 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 8 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 18, 2026 1:47 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 chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. North wind around 1 mph. Chance of precipitation is 40%.
Sunny, with a high near 94.
Mostly clear, with a low around 75.
Sunny, with a high near 97.
Mostly clear, with a low around 68.
Sunny, with a high near 86.
Partly cloudy, with a low around 62.
Mostly sunny, with a high near 82.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 19
|
Sunny then Chance Showers And Thunderstorms
|
90°F |
2 mph
NW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Mostly Clear
|
71°F |
1 mph
N
|
|
Monday
Jul 20
|
Sunny
|
94°F |
3 mph
SW
|
|
Monday Night
Jul 20
|
Mostly Clear
|
75°F |
5 mph
SW
|
|
Tuesday
Jul 21
|
Sunny
|
97°F |
8 mph
W
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
68°F |
3 to 8 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
86°F |
3 to 7 mph
N
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
62°F |
1 to 6 mph
NE
|
|
Thursday
Jul 23
|
Mostly Sunny
|
82°F |
3 mph
NE
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
63°F |
3 mph
SE
|
|
Friday
Jul 24
|
Slight Chance Showers And Thunderstorms
|
85°F |
1 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Summit.