Extended Forecast | Significant/Hazardous Weather | Recreational Forecast | Detailed Discussion | Farm & Garden | Wind by Elevation | Temperature by Elevation
Detailed Forecast
Sunday Night:
Mostly cloudy. Lingering showers decreasing west to east overnight. Showers return to the Adirondacks after midnight, crossing the Greens before the early morning. Lows through the 40s, nearing 50 in the Champlain Valley.
Monday (Memorial Day):
Widespread moderate rain showers most likely in the morning, then drying west to east by noon. Highs from the mid 60s to low 70s north, in the low to mid 70s south. Calm to light west winds.
Monday Night:
Clouds breaking before sunset becoming partly clear with lingering clouds along the western slopes of the Greens and high clouds over southern portions. Lows from the upper 40s to low 50s, mid 50s in the warmer valleys.
Extended Forecast
Tuesday:
Partly cloudy in the morning, becoming mostly sunny in the afternoon. Highs from the mid to upper 70s north, from the low to mid 80s south.
Tuesday Night:
Partly cloudy. Chance of a passing shower north of Route 2. Lows from the mid to upper 50s, upper 40s to low 50s in the northeast and ADK.
Wednesday:
Morning sun then a chance for a wave of scattered showers from north to south in the late morning, spreading through central and southern Vermont during the afternoon. Highs from the low to mid 70s north, increasing into the upper 70s to low 80s as you head south.
Wednesday Night:
Showers south ending early, becoming a mix of clouds. Lows in the upper 40s mountains northeast and west, low to mid 50s elsewhere.
Thursday:
A chance of PM showers, mainly north. Highs in the upper 60s to mid 70s. North winds from 5 to 10 mph, breezier over Lake Champlain.
Thursday Night:
Clouds decreasing overnight. Lows in the low 40s, upper 40s in the broad valleys. Light northwest winds.
Friday:
Mostly sunny besides passing clouds. Highs in the through the 60s north to south, upper 50s northeast, and warmer in the broad valleys.
Significant/Hazardous Weather
None.
Recreational Forecast
Mountain Forecast:
Sunday’s conditions take a downward turn, becoming windy, along with steady rain. Towards the northeast, where the air is drier, most rain won’t reach the ground for much of the morning, so showers won’t be a soaking rain. Heavier rain in the lower Greens in the early afternoon. Showers will become more scattered in the late afternoon. The wet weather will keep temperatures cooler tomorrow, about 10 to 20 degrees cooler. Southwest winds around 10mph, gusting up to 25 over the northern peaks. Rain will taper off overnight on Sunday but another round of showers return over the Adirondacks in the late night then spread over the Green Mountains in the early morning. Morning showers will dry out from west to east around noon.
Wind At Lower Elevations:
Winds becoming southeasterly 5 to 15 mph by Sunday, gusting to 20 mph on Lake Champlain, with waves between 1 and 3 feet. Winds become calm overnight in the south, around 5mph from the south in the north. Monday light to calm winds shift westerly at less than 5 mph. Winds become calm again overnight, and raise to 5mph Tuesday afternoon from the west.
For more details on Lake Champlain, go to: https://forecast.weather.gov/product.php?site=BTV&product=REC&issuedby=BTV
Detailed Discussion
Showers have over run a warm front over the upper Allegheny Plateau that will be trying to lift toward the northeast, but will make little progress. This will leave interior New England on the cool side of the front, featuring chilly southeasterly winds coming off of the still rather cold ocean, in addition to thick clouds and showers. Rain has pressed on slowly from our southwest overnight reaching the Northeast Kingdom this morning. Showers in areas north will experience more intermittent showers where as the Lower greens can expect steady rainfall until the late afternoon. Low pressure will slowly lift from the Great Lakes to overhead by tonight allowing the warm front to pass late this evening. As the front passes, showers will become more scattered, first tapering off in the northwest then spread south. For the most part, though, locations that reach the mid 50s on Sunday will likely be among the warmer ones, with high temperatures at lower elevations more typically in the upper 40s to lower 50s, which will be a solid 20 degrees below the seasonal averages.
By Monday morning, the weak surface low pressure will be situated roughly over coastal New Hampshire. The cold front extending from the south of the low, will kick up widespread rain showers that will explode over Central New and spread over the Greens by sunrise. The cold front will move out much quicker than the warm front today. Showers will retreat from west to east around noon, but clouds will still hang around through the early evening. Temperatures on Monday should be solidly warmer than those of Sunday, but some northeastern areas, for instance, might not get out of the lower 60s, depending on the rate of clearing. Any evening festivities can enjoy the warm and damp conditions, plus clouds will begin to break before sunset.
On Tuesday, we will get a visit from relatively warm high pressure that will drift in from the southern Great Lakes region. This plus clearing skies on Tuesday will likely make Tuesday the warmest day next week, with highs in the 70s or even lower 80s. Shower chances will return quickly for Wednesday, as a cold front moves in from our northwest.
Farm & Garden
Rainfall Forecast:
Since this morning, over half an inch of rain has fallen over the western Central Greens, closer to a quarter inch elsewhere and a few tenths of an inch in the NEK, and Lakes region. More rain arrives before the morning on Monday continue through the early afternoon. Showers spread from Northern New York into Vermont. Moderate rainfall at times in the early morning, then decreasing until around noon. Rain will taper off from west to east. Accumulations from a few tenths of an inch in the south, up to about half an inch in Central VT, and a small chance (35%) for an inch of rain in the White Mountains by noon. The remainder of the week only sees a few passing showers mainly north of route 2 (60-80% around the international border, around 25% in the lower Greens) totaling less than a tenth of an inch, but possibly a quarter inch north of the border after Wednesday. The next good chance of rain comes from the north to start the weekend.
Drying Conditions:
Poor conditions becoming okay Monday afternoon as showers end, minimum relative humidities in the 50s. Great conditions on Tuesday, with minimum relative in the 30 and 40%. Poor conditions on Wednesday because of showers arriving from the north, better conditions south but not great. Fine conditions on Thursday because of another chance of rain, but these showers are more isolated.
Frost:
None.
Wind by Elevation
| Elevation | Sunday | Monday | Tuesday |
| 2000ft | SE 15 to 25 mph | E >W 5 to 10 mph | W 5 > 15 mph |
| 4000ft | SE 30 to 45 mph | SE > NW 10 to 15 mph | W 15 to 25 mph |
| 6000ft | SE 40 to 50 mph | SW > NW 15 to 20 mph | W 20 to 35 mph |
Temperature by Elevation
| Temperature at Elevation | |||
|---|---|---|---|
| Elevation | Sunday | Monday | Tuesday |
| 2000ft | Upper 40s to lower 50s | near 60 | mid 70s |
| 4000ft | Low to mid 40s | mid 50s | low to mid 60s |
| 6000ft | Mid to upper 30s | upper 40s | near 50 |