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

Excessive Rainfall Possible This Weekend; 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 the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Overcast

74°F

23°C

Humidity 85%
Wind Speed N 8 mph
Barometer 30.18 in (1021.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 4 Oct 11:53 am CDT
Extended Forecast for

Allen TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 80. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 63. North wind around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81. Northeast wind 5 to 10 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60. North northeast wind around 5 mph.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. East northeast wind around 5 mph.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61. Calm wind.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. East wind around 5 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85. East wind around 5 mph.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 80. North northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 63. North wind around 5 mph.
Monday
Sunny, with a high near 81. Northeast wind 5 to 10 mph.
Monday Night
Clear, with a low around 60. North northeast wind around 5 mph.
Tuesday
Sunny, with a high near 81. East northeast wind around 5 mph.
Tuesday Night
Clear, with a low around 61. Calm wind.
Wednesday
Sunny, with a high near 83. East wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 63. Calm wind.
Thursday
Mostly sunny, with a high near 85. East wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Allen TX
 33.1°N 96.67°W (Elev. 656 ft)
Last Update:
11:31 am CDT Oct 4, 2026
Forecast Valid:
12pm CDT Oct 4, 2026-6pm CDT Oct 10, 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