National Weather Service

News Headlines

NOAA’s Spring Outlook: Above-normal temperatures and persistent drought conditions expected.

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

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

Fair

80°F

27°C

Humidity	76%
Wind Speed	S 9 mph
Barometer	29.90 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	13 Jun 10:55 pm CDT

More Information:

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

Detailed forecast for

Grayson County

Tonight

Mostly clear this evening, then partly cloudy with a 50 percent chance of showers and thunderstorms after midnight. Lows in the mid 70s. South winds 5 to 10 mph.

Sunday

A chance of thunderstorms. Showers in the morning, then a chance of showers in the afternoon. Humid with highs in the mid 80s. Northeast winds 5 to 10 mph. Chance of rain 90 percent.

Sunday Night

Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Monday

Mostly cloudy with a 20 percent chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Highs in the upper 70s. Northeast winds 5 to 10 mph.

Monday Night

Mostly cloudy. Lows in the mid 60s. Northeast winds around 5 mph.

Tuesday

Mostly sunny. Highs in the mid 80s.

Tuesday Night

Mostly clear. Lows in the lower 70s.

Wednesday

Sunny. Highs in the lower 90s.

Wednesday Night

Clear. Lows in the upper 70s.

Thursday

Mostly sunny. Highs around 90.

Thursday Night

Mostly clear in the evening, then becoming partly cloudy. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the mid 70s. Chance of rain 50 percent.

Juneteenth

Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.

Friday 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 mid 70s. Chance of rain 30 percent.

Saturday

Mostly sunny. A chance of showers and thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 30 percent.