Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

89°F

32°C

Humidity	58%
Wind Speed	SE 7 mph
Barometer	29.95 in
Dewpoint	73°F (23°C)
Visibility	8.00 mi
Heat Index	96°F (36°C)
Last update	17 Aug 7:15 pm CDT

More Information:

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

Extended Forecast for

2 Miles WSW Mc Bride OK

Heat Advisory August 18, 12:00pm until August 18, 08:00pm

Heat Advisory until August 17, 08:00pm

Click here for hazard details and duration

Heat Advisory

...

Heat Advisory until August 17, 08:00pm
NOW until 8:00pm Sun
Heat Advisory
Tonight
Low: 79 °F
Partly Cloudy
Monday
High: 97 °F
Sunny then
Slight Chance
T-storms
Monday Night
Low: 79 °F
Mostly Clear
Tuesday
High: 97 °F
Hot
Tuesday Night
Low: 78 °F
Mostly Clear
then Slight
Chance
T-storms
Wednesday
High: 94 °F
Chance
T-storms
Wednesday Night
Low: 75 °F
Chance
T-storms
Thursday
High: 92 °F
Chance
Showers

Detailed Forecast

Tonight

Partly cloudy, with a low around 79. Southeast wind around 6 mph.

Monday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Heat index values as high as 107. South southwest wind 3 to 5 mph.

Monday Night

Mostly clear, with a low around 79. Light and variable wind.

Tuesday

Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Calm wind.

Wednesday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

Thursday

A chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 92. Chance of precipitation is 30%.