Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72° N Lon: 96.67° W Elev: 748 ft.

Fair

84°F

29°C

Humidity	55%
Wind Speed	SW 16 mph
Barometer	30.09 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	11 Oct 11:50 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Grayson County

Today

Mostly sunny. Highs around 90. Southwest winds 5 to 10 mph, becoming south 10 to 15 mph this afternoon.

Tonight

Clear. Lows in the upper 60s. South winds 5 to 10 mph.

Columbus Day

Sunny. Highs in the upper 80s. South winds 10 to 15 mph.

Monday Night

Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph.

Tuesday

Mostly sunny. Humid with highs around 90. South winds 5 to 10 mph.

Tuesday Night

Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s.

Wednesday

Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 90. Chance of rain 50 percent.

Wednesday Night

Partly cloudy with a 50 percent chance of showers and thunderstorms. Lows around 70.

Thursday

Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

Thursday Night

Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 50 percent.

Friday

Partly sunny. A 20 percent chance of showers in the morning. Cooler with highs in the lower 70s.

Friday Night

Partly cloudy. Lows in the mid 50s.

Saturday

Sunny. Highs in the upper 60s.