Excessive Heat, Bad Air Warnings Extended For Pelham

PELHAM, NY — An excessive heat warning is in place until after sunset Monday. Air quality has deteriorated further, and is now classified "unhealthy" for everyone in the lower Hudson Valley. Temperature anomalies on the order of 10 to even 20 degrees above normal are expected Monday, according to the National Weather Service.

Hot and humid weather may continue into the middle of the work week, so heat-related advisories may be extended, the NWS said.

The excessive heat warning for Dutchess and Ulster counties is in effect until 10 p.m. Monday, while the warning for Orange, Putnam, Rockland and Westchester ends an hour earlier.

Also, isolated to scattered thunderstorms are possible Tuesday through Friday. Locally heavy downpours will be possible with any thunderstorms.

And to make things even more uncomfortable, it won't get much cooler after dark. The overnight low in Central Park was 80 degrees early Monday.

"Overnight lows will also be quite sultry, especially in urban areas where readings could remain above 75 degrees all night," said meteorologist D. Hamrick.

Here's the five-day forecast from the NWS for southern Westchester:

• Monday: Sunny, with a high near 95. Heat index values as high as 100. Southeast wind 6 to 9 mph.
• Monday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 73. Southeast wind 3 to 7 mph.
• Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 99. Calm wind becoming south 5 to 8 mph in the afternoon.
• Tuesday Night: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 73. South wind around 6 mph becoming calm after midnight.
• Independence Day: A 20 percent chance of showers and thunderstorms after noon. Patchy fog before 10am. Otherwise, partly sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the afternoon.
• Wednesday Night: Partly cloudy, with a low around 72.
• Thursday: Mostly sunny, with a high near 90.
• Thursday Night: Partly cloudy, with a low around 72.
• Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
• Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

Image via AccuWeather.com.