Vermont · live outlook · refreshes every 3 h

Vermont sap flow forecast

The next several days for Vermont's sugaring country, read the way a sugarmaker reads them: how cold the night gets, how warm the afternoon gets, and whether that adds up to a run.

Vermont highlighted on a map of the maple belt, with its forecast towns (St. Albans, Morristown, Newport) marked — Vermont in the maple beltDots: St. Albans · Morristown · Newport

Season opens: Mar 2; typical
Closes: Apr 12; typical

112 days to the usual opening. When to tap in Vermont

St. Albans · Franklin County has 2.44 million of Vermont's 8.50 million taps (28.7%), the most of any county (2022 Census of Agriculture).

Forecast for St. Albans

Updated Nov 10, 1:37 AM EST

Only marginal days ahead

freeze thaw 32°F

WedNov 11
38° / 45°
0h below · 24h above
No refreeze forecast
Low of 38°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
ThuNov 12
35° / 45°
0h below · 24h above
No refreeze forecast
Low of 35°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
FriNov 13
35° / 42°
0h below · 24h above
No refreeze forecast
Low of 35°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
SatNov 14
31° / 41°
5h below · 17h above
Maybe a light run
Only a light freeze (31°F). Branches may not freeze hard enough for a strong run.
SunNov 15
34° / 43°
0h below · 24h above
No refreeze forecast
Low of 34°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
MonNov 16
32° / 43°
No refreeze forecast
Low of 32°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.

Data: National Weather Service. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

Morristown · Lamoille County ranks second with 1.11 million taps (13.1%; 2022 Census of Agriculture).

Forecast for Morristown

Updated Nov 10, 1:37 AM EST

4 sap days in the next 6

freeze thaw 32°F

WedNov 11
34° / 44°
0h below · 24h above
No refreeze forecast
Low of 34°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
ThuNov 12
29° / 45°
4h below · 16h above
Classic sap day
Low 29°F, high 45°F — nights in the 20s and days in the 40s: the textbook sap day.
FriNov 13
31° / 39°
4h below · 17h above
Maybe a light run
Only a light freeze (31°F). Branches may not freeze hard enough for a strong run.
SatNov 14
26° / 39°
9h below · 14h above
Sap likely
Freeze (26°F) then 39°F — a real freeze-thaw day.
SunNov 15
30° / 41°
9h below · 13h above
Sap likely
Freeze (30°F) then 41°F — a real freeze-thaw day.
MonNov 16
27° / 42°
Classic sap day
Low 27°F, high 42°F — nights in the 20s and days in the 40s: the textbook sap day.

Data: National Weather Service. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

Newport · Orleans County in the Northeast Kingdom ranks third with 911,598 taps (10.7%; 2022 Census of Agriculture).

Forecast for Newport

Updated Nov 10, 1:37 AM EST

Only marginal days ahead

freeze thaw 32°F

WedNov 11
36° / 43°
0h below · 24h above
No refreeze forecast
Low of 36°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
ThuNov 12
31° / 45°
1h below · 20h above
Maybe a light run
Only a light freeze (31°F). Branches may not freeze hard enough for a strong run.
FriNov 13
34° / 40°
0h below · 24h above
No refreeze forecast
Low of 34°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
SatNov 14
33° / 40°
0h below · 24h above
No refreeze forecast
Low of 33°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
SunNov 15
34° / 42°
0h below · 24h above
No refreeze forecast
Low of 34°F — no refreeze is forecast. An earlier run may continue, then slow; temperature alone cannot rule out flow.
MonNov 16
31° / 42°
Maybe a light run
Only a light freeze (31°F). Branches may not freeze hard enough for a strong run.

Data: National Weather Service. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

Your exact spot

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Your sugarbush, your forecast

Hourly temperatures for your exact spot, turned into a day-by-day sap-run outlook. US and Canada.

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Other states

Data & method · 4

1.National Weather Service API · NOAA National Weather Service
2.Sap flow in sugar maple: timing and weather drivers (Frontiers in Agronomy, 2025) · de Lima Santos et al.
3.Maple Sugaring Tips for Beginners and Backyard Maple Sugar Producers · UNH Extension
4.North American Maple Syrup Producers Manual, 2nd ed. (Bulletin 856) · The Ohio State University Extension

LuckySap · free on iPhone & Android

Never miss the first run

LuckySap can ping you the evening before a strong sap day, then keeps your collections, sugar readings and boils in one season log. Free on iPhone and Android.