



Severe Thunderstorms and Excessive Rainfall Threats Saturday in the Central U.S.
Multiple clusters of strong to severe thunderstorms may develop across parts of the southern Plains, ArkLaTex, and lower Mississippi Valley Saturday. Very large hail, greater than two-inches in diameter, is possible over central and northern Texas. Excessive rainfall from thunderstorms may bring areas of flooding to portions of the Plains, ArkLaTex, and the Midwest Saturday. Read More >
Hazardous Weather Conditions

Current conditions at
McKinney - McKinney National Airport (KTKI)
Lat: 33.18° N Lon: 96.59° W Elev: 584 ft.
Fair
80°F
27°C
Humidity | 69% |
Wind Speed | SE 6 mph |
Barometer | 29.80 in (1008.5 mb) |
Dewpoint | 69°F (21°C) |
Visibility | 10.00 mi |
Heat Index | 83°F (28°C) |
Last update | 9 Jun 11:53 pm CDT |
Detailed forecast for
Collin County
Rest Of Tonight
Mostly clear late this evening, then becoming mostly cloudy. Lows in the mid 70s. Southeast winds around 5 mph.
Saturday
Partly sunny with a 50 percent chance of showers and thunderstorms. Some thunderstorms may be severe. Highs in the mid 90s. South winds 10 to 15 mph.
Saturday Night
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Some thunderstorms may be severe in the evening. Lows in the lower 70s. South winds 10 to 15 mph. Chance of rain 50 percent.
Sunday
Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 106.
Sunday Night
Mostly clear. Lows in the lower 70s. Northeast winds 5 to 10 mph.
Monday
Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs around 90.
Monday Night
Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows around 70. Chance of rain 30 percent.
Tuesday
Mostly sunny. A 20 percent chance of showers and thunderstorms in the morning. Highs in the lower 90s.
Tuesday Night
Mostly clear. A 20 percent chance of showers and thunderstorms in the evening. Lows in the lower 70s.
Wednesday
Mostly sunny. Highs in the upper 90s.
Wednesday Night
Mostly clear. Lows in the mid 70s.
Thursday
Sunny, hot with highs in the upper 90s.
Thursday Night
Mostly clear. Lows in the mid 70s.
Friday
Sunny, hot with highs in the upper 90s. Heat index values up to 105.
Additional Forecasts and Information
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