Get Outside Quick: Pelham's Weekend Weather

PELHAM, NY — Friday's warmth will begin to dissipate Saturday afternoon. By Saturday night, it could be sleeting. By Sunday night, thunderstorms. So get outside quickly.

According to the National Weather Service, the problem Saturday will be the timing of a back door cold front dropping into the Hudson Valley from eastern Canada.

Anyone planning outdoor activities on what should start off as a mild day should be prepared for much cooler air to arrive at some point in the afternoon, as temps should drop a good 10-15 degrees in the span of an hour or two, especially north and east of NYC, with temps by sunset in the lower 60s in NYC, 50s most elsewhere, and mid/upper 40s across eastern CT/Long Island.

By Saturday night, temps will be back in the 30s. And sleet could mix in with light rain. Then heavy rain will develop Sunday night into Monday, with thunder possible.

And if you're traveling at all this weekend, there's a lot of extreme weather going on elsewhere in the country. Airline passengers should anticipate flight delays due to blizzard conditions in the Great Plains; an ice storm across the Great Lakes, Toronto, upstate New York and New England; and storms with possible tornadoes from the central and southern plains to Ohio, said meteorologists with AccuWeather.com

Here's the National Weather Service weekend forecast for southern Westchester:

• Today-Mostly cloudy this morning, then becoming partly sunny. Highs in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 25 mph.
• Tonight-Partly cloudy in the evening, then clearing. Patchy fog after midnight. Lows in the mid 50s. South winds 5 to 10 mph, becoming southwest after midnight. Gusts up to 20 mph.
• Saturday-Mostly sunny. Patchy fog in the morning. A slight chance of light rain in the afternoon. Highs in the mid 70s. Southwest winds 5 to 10 mph, becoming south in the afternoon. Chance of rain 20 percent.
• Saturday Night-Cloudy with a 50 percent chance of light rain. Cooler with lows in the upper 30s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
• Sunday-Showers likely. Much cooler with highs in the mid 40s. East winds around 15 mph with gusts up to 30 mph. Chance of rain 70 percent.
• Sunday Night-Showers. Lows in the lower 40s. Chance of rain 90 percent.

Image: AccuWeather.com