Collin County, TX Weather Forecast
County weather hub
Sunny
Compare major city weather across Collin County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 84. East northeast wind around 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Collin County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 17 of 17 mapped cities in Collin County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 9 to Oct 12, 2026
- Latest sync
- Oct 5, 2026 10:00 PM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Collin County
Friday looks like the warmest upcoming period in Collin County at 84 degrees F.
Friday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Friday at about 5 mph ENE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Oct 5, 2026 10:00 PM CDT
- Coverage
- 4 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
Mostly clear, with a low around 65. East northeast wind 0 to 5 mph.
Sunny, with a high near 84.
Mostly clear, with a low around 67.
Sunny, with a high near 83.
Partly cloudy, with a low around 69.
A slight chance of rain showers after 7am. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 9
|
Sunny
|
84°F |
5 mph
ENE
|
|
Friday Night
Oct 9
|
Mostly Clear
|
65°F |
0 to 5 mph
ENE
|
|
Saturday
Oct 10
|
Sunny
|
84°F |
5 mph
ENE
|
|
Saturday Night
Oct 10
|
Mostly Clear
|
67°F |
0 to 5 mph
E
|
|
Sunday
Oct 11
|
Sunny
|
83°F |
0 to 5 mph
ESE
|
|
Sunday Night
Oct 11
|
Partly Cloudy
|
69°F |
0 to 5 mph
ESE
|
|
Columbus Day
Oct 12
|
Slight Chance Rain Showers
|
84°F |
5 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Collin County.
Coverage
Forecast coverage currently spans 17 of 17 mapped cities in Collin County.
Largest mapped city population in this region: 291,296.
