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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

67°F

19°C

Humidity 87%
Wind Speed Calm
Barometer 30.01 in (1016.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 10 Oct 8:53 am CDT
Extended Forecast for

Van Alstyne TX

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. South southeast wind around 5 mph.

    Low: 64 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 89. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 68. South wind around 10 mph.

    Low: 68 °F

    Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 72. South wind 5 to 10 mph.

    Low: 72 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. South wind around 10 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Clear, with a low around 64. South southeast wind around 5 mph.
Sunday
Sunny, with a high near 89. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 68. South wind around 10 mph.
Columbus Day
Sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 72. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 90. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 73. South wind around 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Van Alstyne TX
 33.44°N 96.57°W (Elev. 784 ft)
Last Update:
6:06 am CDT Oct 10, 2026
Forecast Valid:
8am CDT Oct 10, 2026-6pm CDT Oct 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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