Thunderstorms and Widespread Rainfall Across the Southern Plains

Isolated severe thunderstorms and widespread showers may produce flash flooding across the Southern Plains through Thursday. Numerous instances of flash flooding are expected in south-central Texas, including portions of the Hill Country; and an additional area across eastern Oklahoma into the Ozarks on Thursday. Heavy rainfall and mountain snow will return to southern California on Thursday. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Rain Fog/Mist

66°F

19°C

Humidity 97%
Wind Speed SE 10 mph
Barometer 30.01 in
Dewpoint 65°F (18°C)
Visibility 5.00 mi
Last update 20 Nov 5:35 am CST
Extended Forecast for

2 Miles W Southmayd TX

  • Overnight

    Overnight: Showers and possibly a thunderstorm.  Steady temperature around 68. South wind around 10 mph.  Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm.  High near 73. South wind around 10 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 9pm, then showers likely.  Low around 60. South southwest wind 5 to 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers before noon.  Partly sunny, then gradually becoming sunny, with a high near 73. West southwest wind 5 to 10 mph.

    High: 73 °F

    Slight Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. West southwest wind around 5 mph becoming north northwest after midnight.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67. North wind around 5 mph.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 50. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 50 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 67. East wind around 5 mph.  Chance of precipitation is 60%.

    High: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm.  Low around 55. South southeast wind 5 to 10 mph.  Chance of precipitation is 80%.

    Low: 55 °F

    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Steady temperature around 68. South wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm. High near 73. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 9pm, then showers likely. Low around 60. South southwest wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 20 percent chance of showers before noon. Partly sunny, then gradually becoming sunny, with a high near 73. West southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 50. West southwest wind around 5 mph becoming north northwest after midnight.
Saturday
Mostly sunny, with a high near 67. North wind around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 50. Calm wind becoming east northeast around 5 mph after midnight.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67. East wind around 5 mph. Chance of precipitation is 60%.
Sunday Night
Showers and possibly a thunderstorm. Low around 55. South southeast wind 5 to 10 mph. Chance of precipitation is 80%.
Monday
Showers likely, mainly before noon. Partly sunny, with a high near 67. Chance of precipitation is 70%.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Southmayd TX
 33.62°N 96.76°W (Elev. 735 ft)
5:06 am CST Nov 20, 2025
5am CST Nov 20, 2025-6pm CST Nov 26, 2025
 
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Additional Resources

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Hourly Weather Forecast

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