Early Week Weather
A pair of high pressure systems, one over the Southeastern United States and the second north of the Great Lakes in Canada, will be the primary influencers on our early week weather.
Skies are clear to start this morning throughout the Finger Lakes. Nonetheless, temperatures are not too chilly and are a bit above the climatological average this morning in the low and mid 30s.
Sunshine will continue to be abundant this morning, but clouds will develop this afternoon as a weak frontal boundary sets up between the highs and a speed maximum in the jet stream, high above the surface, moves in.
High temperatures will mostly make it to near or just above 50 degrees this afternoon as the clouds thicken. Some eastern areas may not quite reach 50 degrees, especially in the higher elevations.
The wind will be on the blustery side with many areas seeing gusts around 35 mph from the northwest, especially this afternoon.
A little light precipitation will be possible this evening, mainly over the southwestern quadrant of the region. Wyoming, southern Livingston, Allegany, and Steuben counties have the best shot at seeing some precipitation. Much of what falls will be rain, but some higher elevation snow will also be possible.
Elsewhere, it will be a mostly cloudy night, though some clearing may take place over the northeastern half of the region late. Overnight lows will settle into the mid 20s, very close to the climatological average.
Tuesday will probably have more clouds than not, but at least some breaks of sun will be possible. Again, the northeastern half of the region will have the best shot at seeing clearer skies.
No precipitation is expected on Tuesday and afternoon highs will top out near the climatological average in the mid 40s.
The rest of the week, and the weekend, will be unsettled as a series of weather systems move through. None of these systems look too intense, but they will keep precipitation in the forecast daily.
A warm front will lift through the area on Wednesday. If the precipitation ahead of the front arrives early enough in the morning, it may start off with a brief window of icy mix. This could make for a few slick spots Wednesday morning.
It should not take long for the precipitation to turn over to rain. The clouds and showers should prevent any substantial warming yet with highs in the mid 40s.
South and southeast winds will increase Wednesday night, holding temperatures in the low 40s. Thursday will see more warming and will be the highest temperatures of the week. Afternoon highs in the upper 50s and low 60s are likely.
Thursday will also have some blustery south winds and scattered rain showers. Overall, Thursday should have more dry time and lighter precipitation amounts than Wednesday.
The warm weather will vanish as quickly as it moves in thanks to a cold front Thursday night. Friday will have highs back in the mid 40s with a few rain showers around.
Showers will continue into Saturday and may mix with a little snow over higher elevations during the overnight. Temperatures should still manage to reach the mid 40s, though this is a bit uncertain.
Colder air will more firmly entrench itself overhead on Sunday with temperatures stuck in the 20s. Snow showers will be likely, though accumulations will probably be minimal. The cold will stick around into Monday before temperatures rise back to near or above average.
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected.
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