| NWS Forecast for: Grayson County Issued by: National Weather Service Dallas/Fort Worth, TX Last Update: 509 PM CDT Tue Jun 9 2026 | |
| Tonight: Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Wednesday: Mostly sunny. Humid with highs in the lower 90s. South winds 10 to 15 mph. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. South winds 10 to 15 mph. Thursday: Mostly sunny. Humid with highs in the lower 90s. South winds 10 to 15 mph. Heat index values up to 105. Thursday Night: Partly cloudy with a slight chance of showers in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Humid with lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 50 percent. Friday: Partly sunny. Showers likely with a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 60 percent. Friday Night: Partly cloudy. Lows in the upper 70s. Saturday: Mostly sunny with a 20 percent chance of showers and thunderstorms. Highs in the lower 90s. Saturday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 70s. Chance of rain 40 percent. Sunday: Mostly sunny with a 50 percent chance of showers and thunderstorms. Highs around 90. Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. Showers likely with a chance of thunderstorms. Lows in the lower 70s. Chance of rain 70 percent. Monday: Partly sunny with a 50 percent chance of showers and thunderstorms. Highs in the mid 80s. Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. A slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 40 percent. Tuesday: Mostly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. | |
| Zone Forecast: Grayson County | |
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