Excessive Heat, Bad Air Warnings Extended For Yorktown

SOMERS, 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 on 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 northern Westchester:

• Today-Patchy fog this morning. Sunny, hot with highs in the mid 90s. Southeast winds 5 to 10 mph. Heat index values up to 102.
• Tonight-Mostly clear. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph.
• Tuesday-Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 102.
• Tuesday Night-Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 20 percent.
• Independence Day-Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs around 90. South winds around 5 mph. Chance of rain 30 percent. Heat index values up to 100.
• Wednesday Night-Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 70s.
• Thursday-Mostly sunny. Highs around 90. Heat index values in the upper 90s.
• Thursday Night-Mostly cloudy. Lows in the lower 70s.
• Friday-Partly sunny in the morning, then becoming mostly cloudy. A chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent.
• Friday Night-Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 50 percent.

Image via AccuWeather.com