National Weather Service

News Headlines

Click Here for the 2026 SKYWARN Class Schedule!

Hazardous Weather Conditions

Severe Thunderstorm Watch in effect from March 4, 04:40 PM CST until March 4, 11:00 PM CST

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18° N Lon: 96.59° W Elev: 584 ft.

Light Rain

75°F

24°C

Humidity	76%
Wind Speed	S 6 mph
Barometer	29.95 in (1014.1 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	4 Mar 3:53 pm CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Collin County

This Afternoon

Mostly cloudy with showers and thunderstorms likely. Highs in the upper 70s. South winds 10 to 15 mph. Chance of rain 60 percent.

Tonight

Showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 90 percent.

Thursday

Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers and thunderstorms. Highs in the upper 70s. South winds 10 to 15 mph.

Thursday Night

Partly cloudy in the evening, then becoming mostly cloudy. A 20 percent chance of showers and thunderstorms. Lows in the mid 60s. South winds 10 to 15 mph.

Friday

A chance of showers with a slight chance of thunderstorms in the morning, then showers and thunderstorms in the afternoon. Highs in the upper 70s. South winds 10 to 20 mph. Chance of rain 90 percent.

Friday Night

Showers. Thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 90 percent.

Saturday

Mostly cloudy with showers likely with a chance of thunderstorms. Cooler with highs in the mid 60s. Chance of rain 70 percent.

Saturday Night

A chance of thunderstorms in the evening. Cloudy with showers likely. Lows in the lower 50s. Chance of rain 60 percent.

Sunday

Cloudy in the morning, then becoming partly sunny. A 40 percent chance of showers. Highs in the upper 60s.

Sunday 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 in the upper 50s. Chance of rain 30 percent.

Monday

A slight chance of thunderstorms in the morning. Partly sunny with a chance of showers. Highs in the mid 70s. Chance of rain 50 percent.

Monday Night

Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 60 percent.

Tuesday

Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 80 percent.