Collinsville, OK Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Collinsville, OK in one place.
Sunny, with a high near 98. Heat index values as high as 104. South wind 10 to 15 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Collinsville, OK 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: Aug 27, 2026 9:13 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Collinsville, OK.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 9:13 PM CDT
- Forecast office
- TSA
- Source
- NOAA / NWS
Daily Outlook
This Week in Collinsville
Sunday looks like the warmest upcoming period in Collinsville at 100 degrees F.
Monday Night is the coolest period ahead with temperatures near 76 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph S.
The forecast from Aug 29 through Sep 3 stays mostly dry.
Forecast Details
- Last updated
- Aug 27, 2026 9:13 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- TSA
- Radar station
- KINX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunny, with a high near 100. South wind around 15 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 100. South wind 10 to 15 mph, with gusts as high as 25 mph.
Clear, with a low around 76. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 99. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 77. South wind 10 to 15 mph.
Sunny, with a high near 99. South wind 10 to 15 mph.
Mostly clear, with a low around 78. South wind 10 to 15 mph.
Sunny, with a high near 100. South wind 10 to 15 mph, with gusts as high as 20 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Sunny
|
98°F |
10 to 15 mph
S
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
77°F |
10 to 15 mph
S
|
|
Sunday
Aug 30
|
Sunny
|
100°F |
15 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
77°F |
15 mph
S
|
|
Monday
Aug 31
|
Sunny
|
100°F |
10 to 15 mph
S
|
|
Monday Night
Aug 31
|
Clear
|
76°F |
10 to 15 mph
S
|
|
Tuesday
Sep 1
|
Sunny
|
99°F |
10 to 15 mph
S
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
77°F |
10 to 15 mph
S
|
|
Wednesday
Sep 2
|
Sunny
|
99°F |
10 to 15 mph
S
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
78°F |
10 to 15 mph
S
|
|
Thursday
Sep 3
|
Sunny
|
100°F |
10 to 15 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Collinsville.