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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Grove, Grove Municipal Airport (KGMJ)

Lat: 36.61°NLon: 94.74°WElev: 833ft.

99°F

37°C

Humidity NA
Wind Speed S 13 G 20 mph
Barometer 30.02 in
Dewpoint N/A
Visibility NA
Last update 15 Sep 2:15 pm CDT
Extended Forecast for

Grand Lake Towne OK

Heat Advisory until September 15, 07:00pm
Heat Advisory September 16, 12:00pm until September 16, 07:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory until September 15, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. Heat index values as high as 105. South wind around 5 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind around 5 mph becoming calm.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. Calm wind becoming south around 5 mph.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 97 °F

    Sunny

  • Friday Night

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

    Low: 75 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 99. Heat index values as high as 107. South wind around 10 mph.
Tonight
Clear, with a low around 78. South wind around 5 mph.
Wednesday
Sunny and hot, with a high near 100. Heat index values as high as 105. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 98. Calm wind becoming south around 5 mph.
Thursday Night
Mostly clear, with a low around 75. Calm wind.
Friday
Sunny, with a high near 97. Light south wind becoming southwest 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 75. South wind around 5 mph.
Saturday
Sunny, with a high near 98. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers. Mostly clear, with a low around 72. South wind around 5 mph.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Southwest wind 5 to 10 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North wind around 5 mph.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 84. North wind around 5 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake Towne OK
 36.5°N 95.03°W
Last Update:
1:50 pm CDT Sep 15, 2026
Forecast Valid:
2pm CDT Sep 15, 2026-6pm CDT Sep 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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