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

Heavy Rainfall Across South Texas; Heat in the West

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and Lower Mississippi River Valley through Thursday. Hot temperatures will persist over central and northern California and the Pacific Northwest through today. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

A Few Clouds

75°F

24°C

Humidity 89%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 16 Jun 8:50 am CDT
Extended Forecast for

Willis OK

  • Today

    Today: Patchy fog before noon. Otherwise, sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. East southeast wind 3 to 6 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 91. Heat index values as high as 101. South wind 7 to 16 mph, with gusts as high as 24 mph.

    High: 91 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 91. Southeast wind 7 to 10 mph.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely

  • Juneteenth

    Juneteenth: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Patchy fog before noon. Otherwise, sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 73. East southeast wind 3 to 6 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 91. Heat index values as high as 101. South wind 7 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 91. Southeast wind 7 to 10 mph.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 60%.
Juneteenth
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 79.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Willis OK
 33.89°N 96.83°W
Last Update:
8:22 am CDT Jun 16, 2026
Forecast Valid:
9am CDT Jun 16, 2026-6pm CDT Jun 22, 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