National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Wave Continues in the Northeastern Quarter of the U.S.; Excessive Rain May Bring Flooding in the North Central U.S.

The heat wave is expected to peak in the eastern Great Lakes and New England today, and the Ohio Valley and Mid-Atlantic Friday into the weekend. Widespread daily record high temperatures are likely. Heavy to excessive rainfall will be associated with thunderstorms forecast to move across parts of the northern Plains and Upper Midwest today into Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Mostly Cloudy

77°F

25°C

Humidity 89%
Wind Speed E 8 mph
Barometer 30.19 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Jun 7:50 am CDT
Extended Forecast for

3 Miles N Collinsville TX

  • Today

    Today: Mostly cloudy, with a high near 90. Heat index values as high as 99. East southeast wind 5 to 10 mph.

    High: 90 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. East southeast wind around 5 mph.

    Low: 72 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 92. Heat index values as high as 97. Southeast wind around 5 mph.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Southeast wind around 5 mph becoming calm after midnight.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Light south wind increasing to 5 to 10 mph in the morning.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 97. South southwest wind around 5 mph.

    High: 97 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. South southwest wind around 5 mph.

    High: 97 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 90. Heat index values as high as 99. East southeast wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 72. East southeast wind around 5 mph.
Friday
Mostly sunny, with a high near 92. Heat index values as high as 97. Southeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 72. Southeast wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 93. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 75. South wind around 5 mph.
Sunday
Sunny, with a high near 97. South southwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Monday
Sunny, with a high near 97. South southwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Collinsville TX
 33.61°N 96.9°W (Elev. 735 ft)
Last Update:
5:04 am CDT Jun 20, 2024
Forecast Valid:
7am CDT Jun 20, 2024-6pm CDT Jun 26, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation