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Heat Alert: Dangerous, extreme heat builds, with oppressive conditions lasting into the holiday weekend

Temperatures surge into the mid- to upper 90s Wednesday through Friday. Heat index values could reach 105 to 110 degrees, while isolated afternoon and evening thunderstorms remain possible through the period.

Michael Latella

Jun 29, 2026, 9:33 PM

Updated

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Alert: Extreme heat watch in effect for the entire Hudson Valley from Wednesday at noon to Friday at 9 p.m.

What to Expect

  • Hot weather intensifies Tuesday before becoming dangerous Wednesday through Friday.

  • Afternoon temperatures will climb into the upper 90s, with heat index values between 105 and 110 degrees

    possible in the Hudson Valley.

  • Warm, muggy nights in the 70s will offer little relief, increasing the risk of heat-related illness.

  • Isolated afternoon and evening thunderstorms are possible Tuesday and Wednesday, with additional scattered storms arriving Friday night and continuing through the holiday weekend.

  • While storms will be spotty through midweek, any thunderstorm could produce brief heavy downpours and gusty winds.

Forecast

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Overnight: Mostly clear and warm. Lows in the mid-60s.

Tuesday: Mostly sunny, hot and increasingly humid. A slight chance of an afternoon or evening thunderstorm. Highs in the mid- to upper 80s.

Tuesday Night: Partly cloudy, warm and muggy with a slight chance of a thunderstorm. Lows in the upper 60s.

Wednesday: Mostly sunny and dangerously hot. A slight chance of an afternoon thunderstorm. Highs in the lower to mid-90s.

Thursday: Sunny and dangerously hot. Highs in the upper 90s with heat index values between 105 and 110 degrees.

Friday: Sunny and oppressively hot. Highs in the upper 90s. A chance of thunderstorms develops Friday night.

Saturday (Independence Day): Mostly sunny, very hot and humid with scattered afternoon and evening showers and thunderstorms. Highs in the lower 90s.

Sunday: Mostly sunny, hot and humid with scattered afternoon thunderstorms possible. Highs in the upper 80s to around 90 degrees.

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