Heat and Fire Weather Concerns in the West

Heat will build over the Intermountain West and the Southwest the next couple of days. Lightning from dry thunderstorms can create new fire starts and combined with gusty winds may cause a fire to rapidly grow in Oregon and northern California. Elevated fire weather conditions are also expected in the Great Basin. Flash flooding will be possible in Arizona and west Texas, especially in burn scars. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

82°F

28°C

Humidity	70%
Wind Speed	S 12 mph
Barometer	29.97 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	30 Jun 12:15 am CDT

More Information:

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

Extended Forecast for

Denison TX

Overnight
Low: 75 °F
Clear
Monday
High: 95 °F
Mostly Sunny
Monday Night
Low: 75 °F
Chance
T-storms
Tuesday
High: 91 °F
Slight Chance
T-storms
Tuesday Night
Low: 74 °F
Mostly Cloudy
Wednesday
High: 94 °F
Mostly Sunny
Wednesday Night
Low: 76 °F
Partly Cloudy
Thursday
High: 94 °F
Mostly Sunny
Thursday Night
Low: 75 °F
Partly Cloudy

Detailed Forecast

Overnight

Clear, with a low around 75. South wind 5 to 10 mph.

Monday

Mostly sunny, with a high near 95. Heat index values as high as 103. South southwest wind around 10 mph.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly before 4am. Partly cloudy, with a low around 75. South wind around 5 mph becoming northwest after midnight.

Tuesday

A slight chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Heat index values as high as 100. West northwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.

Tuesday Night

Mostly cloudy, with a low around 74. Calm wind.

Wednesday

Mostly sunny, with a high near 94. Calm wind becoming south southwest around 5 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 76. South southeast wind around 5 mph becoming calm.

Thursday

Mostly sunny, with a high near 94. South southwest wind around 5 mph.

Thursday Night

Partly cloudy, with a low around 75. South wind around 5 mph.

Independence Day

Mostly sunny, with a high near 92.