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

Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Partly Cloudy

79°F

26°C

Humidity 89%
Wind Speed NE 6 mph
Barometer 29.87 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Jun 11:55 pm CDT
Extended Forecast for

Willis OK

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. North northeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. North northeast wind 6 to 8 mph becoming east southeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. East southeast wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 87. South southeast wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. Southeast wind 6 to 8 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77. Chance of precipitation is 50%.

    Low: 77 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 74. Chance of precipitation is 70%.

    Low: 74 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. North northeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Juneteenth
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. North northeast wind 6 to 8 mph becoming east southeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. East southeast wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 87. South southeast wind 5 to 7 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 75. Southeast wind 6 to 8 mph.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77. Chance of precipitation is 50%.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 90.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 74. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Willis OK
 33.89°N 96.83°W
Last Update:
9:32 pm CDT Jun 18, 2026
Forecast Valid:
11pm CDT Jun 18, 2026-6pm CDT Jun 25, 2026
 
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