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

Excessive Rainfall Possible for the Gulf Coast and Florida; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across parts of the Gulf Coast into central/northern Florida early this week. Abnormally hot, potentially record-breaking, temperatures will continue for southern California and stretch north toward the Bay Area and Central Valley this week. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Knollwood TX

  • Tonight

    Tonight: Partly cloudy, with a low around 61. North wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 79. Northeast wind around 5 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming east southeast around 5 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 59. Calm wind.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. Calm wind.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming east around 5 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. North wind around 5 mph.
Monday
Sunny, with a high near 79. Northeast wind around 5 mph.
Monday Night
Clear, with a low around 57. Calm wind.
Tuesday
Sunny, with a high near 78. Calm wind becoming east southeast around 5 mph.
Tuesday Night
Clear, with a low around 59. Calm wind.
Wednesday
Sunny, with a high near 80. Calm wind.
Wednesday Night
Clear, with a low around 60. Calm wind.
Thursday
Sunny, with a high near 81. Calm wind becoming east around 5 mph.
Thursday Night
Partly cloudy, with a low around 63. Calm wind.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Knollwood TX
 33.69°N 96.63°W (Elev. 846 ft)
Last Update:
5:21 pm CDT Oct 4, 2026
Forecast Valid:
5pm CDT Oct 4, 2026-6pm CDT Oct 11, 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