Summer Heat and Flooding Likely Today

Dangerous and intense summer heat is likely in several locations today, from the central Plains to the Great Lakes and Northeast and in the Pacific Northwest. Meanwhile, heavy to excessive rainfall from organized areas of rain and thunderstorms are likely going to produce flood issues in the Upper Mississippi Valley. Also, monsoonal showers and storms may result in flooding in the Four Corners. Read More >

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Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Mostly Cloudy

34°C

93°F

Humidity	38%
Wind Speed	SE 15 km/h
Barometer	1014.8 mb (29.99 in)
Dewpoint	18°C (64°F)
Visibility	16 km
Heat Index	35°C (95°F)
Last update	7 Aug 7:53 pm CDT

More Information:

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

Extended Forecast for

Van Alstyne TX

Tonight

Partly Cloudy
Low: 26 °C
Monday

Slight Chance
T-storms
High: 36 °C
Monday
Night

Slight Chance
T-storms
Low: 25 °C
Tuesday

Chance
T-storms
High: 35 °C
Tuesday
Night

Chance
T-storms
Low: 23 °C
Wednesday

Chance
T-storms
High: 33 °C
Wednesday
Night

Slight Chance
T-storms
Low: 23 °C
Thursday

Slight Chance
T-storms
High: 34 °C
Thursday
Night

Mostly Clear
Low: 23 °C

Detailed Forecast

Tonight

Partly cloudy, with a low around 26. South southeast wind 10 to 15 km/h.

Monday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 36. Heat index values as high as 39. South wind 10 to 20 km/h.

Monday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 25. South southeast wind around 10 km/h. Chance of precipitation is 20%.

Tuesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 35. Heat index values as high as 38. South southwest wind around 10 km/h.

Tuesday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 23. East southeast wind 5 to 10 km/h becoming south after midnight.

Wednesday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 33. South wind 5 to 10 km/h.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23. Southeast wind 5 to 10 km/h.

Thursday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 34. Calm wind becoming east 5 to 10 km/h in the morning.

Thursday Night

Mostly clear, with a low around 23. South southeast wind 5 to 15 km/h.

Friday

Sunny, with a high near 35.

Friday Night

Mostly clear, with a low around 24.