Grayson County, TX Weather Forecast
County weather hub
Sunny then Slight Chance Showers And Thunderstorms
Compare major city weather across Grayson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. Chance of precipitation is 20%.
County Weather Overview
This county weather page brings together forecast coverage for Grayson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 7 of 7 mapped cities in Grayson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 16, 2026
- Latest sync
- Jul 10, 2026 2:24 AM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Grayson County
Thursday looks like the warmest upcoming period in Grayson County at 91 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 10 mph ESE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 10, 2026 2:24 AM CDT
- Coverage
- 3 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
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
Mostly sunny, with a high near 91.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
ESE
|
|
Tuesday Night
Jul 14
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
5 to 10 mph
SSE
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
5 mph
SSE
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
5 mph
SSE
|
|
Thursday
Jul 16
|
Mostly Sunny
|
91°F |
5 to 10 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Grayson County.
Coverage
Forecast coverage currently spans 7 of 7 mapped cities in Grayson County.
Largest mapped city population in this region: 45,136.
