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

88°F

31°C

Humidity	43%
Wind Speed	S 15 mph
Barometer	30.02 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	11 Oct 2:50 pm CDT

More Information:

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

Detailed forecast for

Grayson County

This Afternoon

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

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

Clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph.

Tuesday

Mostly sunny. Humid with highs in the lower 90s. South winds 5 to 10 mph.

Tuesday Night

Mostly clear. Lows in the mid 70s.

Wednesday

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

Wednesday Night

Partly cloudy with a chance of thunderstorms. Showers likely in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 70 percent.

Thursday

Partly sunny with a slight chance of thunderstorms. Showers likely in the morning, then a chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 70 percent.

Thursday Night

Mostly cloudy with a 20 percent chance of showers. Lows in the lower 60s.

Friday

Partly sunny. Cooler with highs in the lower 70s.

Friday Night

Partly cloudy in the evening, then clearing. Cooler with lows in the lower 50s.

Saturday

Sunny. Highs in the upper 60s.