Collin, TX Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Collin, TX in one place.
Mostly sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 101. South southeast wind around 5 mph.
Local Weather Overview
This forecast page for Collin, TX 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: Sep 16, 2026 5:39 AM CDT.
The active forecast window currently covers Sep 17 to Sep 22, 2026 for Collin, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 5:39 AM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Collin
Thursday looks like the warmest upcoming period in Collin at 99 degrees F.
Monday Night is the coolest period ahead with temperatures near 73 degrees F.
The strongest winds are forecast for Friday Night at about 5 to 10 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 16, 2026 5:39 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FWD
- Radar station
- KFWS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 78. Southeast wind around 5 mph.
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. South wind around 5 mph.
Mostly clear, with a low around 77. South wind 5 to 10 mph.
Sunny, with a high near 99. South wind 5 to 10 mph.
Mostly clear, with a low around 77. South wind around 10 mph.
Sunny, with a high near 98.
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 94. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Sep 17
|
Mostly Sunny
|
99°F |
5 mph
SSE
|
|
Thursday Night
Sep 17
|
Partly Cloudy
|
78°F |
5 mph
SE
|
|
Friday
Sep 18
|
Sunny
|
98°F |
5 mph
S
|
|
Friday Night
Sep 18
|
Mostly Clear
|
77°F |
5 to 10 mph
S
|
|
Saturday
Sep 19
|
Sunny
|
99°F |
5 to 10 mph
S
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
77°F |
10 mph
S
|
|
Sunday
Sep 20
|
Sunny
|
98°F |
5 to 10 mph
S
|
|
Sunday Night
Sep 20
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
77°F |
5 mph
SSE
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
94°F |
5 mph
S
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
73°F |
5 mph
E
|
|
Tuesday
Sep 22
|
Chance Rain Showers
|
92°F |
5 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Collin.