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Tropical Storm Isaias in the Gulf; California Heat Continues

Tropical Storm Isaias is forecast to track toward the central U.S. Gulf Coast while strengthening into a hurricane on Thursday. Residents from Louisiana to the Florida Panhandle should closely monitor the latest updates. Much higher than typical October temperatures will continue across much of California through midweek. Temperatures are forecast to gradually cool beginning Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

72°F

22°C

Humidity 59%
Wind Speed Calm
Barometer 30.05 in (1017.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 7 Oct 9:53 am CDT
Extended Forecast for

3 Miles ESE Prosper TX

  • Today

    Today: Sunny, with a high near 83. Calm wind becoming east northeast around 5 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 61. Calm wind.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. North northeast wind around 5 mph becoming calm.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 64. East wind around 5 mph becoming calm.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 84. East wind around 5 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. East wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. East wind around 5 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. East wind around 5 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. South wind around 5 mph.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Calm wind becoming east northeast around 5 mph.
Tonight
Clear, with a low around 61. Calm wind.
Thursday
Sunny, with a high near 84. North northeast wind around 5 mph becoming calm.
Thursday Night
Clear, with a low around 64. East wind around 5 mph becoming calm.
Friday
Sunny, with a high near 84. East wind around 5 mph.
Friday Night
Mostly clear, with a low around 65. East wind around 5 mph.
Saturday
Sunny, with a high near 82. East wind around 5 mph.
Saturday Night
Mostly clear, with a low around 66. East wind around 5 mph.
Sunday
Sunny, with a high near 84. South wind around 5 mph.
Sunday Night
Mostly clear, with a low around 69.
Columbus Day
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 71.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Prosper TX
 33.23°N 96.73°W (Elev. 650 ft)
Last Update:
6:06 am CDT Oct 7, 2026
Forecast Valid:
10am CDT Oct 7, 2026-6pm CDT Oct 13, 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