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Grayson County Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  | | | | |  | |  |  | |
| Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Partly Sunny | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C |
| POP: 30% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 609 PM CDT Tue Sep 22 2026 
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Issued: 705 PM CDT Tue Sep 22 2026
Key Messages
- Low thunderstorm chances continue Wednesday afternoon mainly across western North and Central Texas with gusty downburst winds possible.
- Above normal temperatures and less humid conditions will prevail through the remainder of the week.
- An active weather pattern may return early next week with the return of rain chances across the region.
Aviation
... (00Z TAFS) Issued at 658 PM CDT Tue Sep 22 2026
VFR conditions will prevail through the period with northeast to east winds generally bel...