Monthly outlook for Grand Isle, VT: average high 46.6°, average low 37.6°. That is 3.5° above the climate normal for November. Precipitation is expected on 4 days (about 3.4 inches), against a normal of 7 days and 1.7 inches. The warmest day looks like 25 November (59.6°), the coolest 27 November (24.6°).
46.6°/37.6°
Average high / low
+3.5°
Above normal
4 / 7
Wet days / normal
3.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
46.9°
41.1°
+3.3°
23 November – 2 December
46°
38.5°
+4.2°
3 December – 12 December
at normal
33.6°
—
November records over 66 years
68.4°3 November 1982All-time high
4.5°22 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Chazy (12 mi).
Sat, 1442° / 35°0.1
42 °
Grand Isle, Saturday, 14 November
Light rain. High 42°, low 35°.
Pressure29.68 inHg
Wind14.8 mph NW
Humidity91%
Visibility6.2 mi
Dew point37°
Sun, 1543° / 36°0
43 °
Grand Isle, Sunday, 15 November
Overcast. High 43°, low 36°.
Pressure30.09 inHg
Wind14.3 mph NW
Humidity65%
Visibility6.2 mi
Dew point32°
Mon, 1643° / 38°0
43 °
Grand Isle, Monday, 16 November
Overcast. High 43°, low 38°.
Pressure30.39 inHg
Wind11.2 mph NW
Humidity65%
Visibility6.2 mi
Dew point31°
Tue, 1749° / 38°0
49 °
Grand Isle, Tuesday, 17 November
Partly cloudy. High 49°, low 38°.
Pressure30.39 inHg
Wind12.3 mph S
Humidity84%
Visibility—
Dew point38°
Wed, 1850° / 42°0
50 °
Grand Isle, Wednesday, 18 November
Overcast. High 50°, low 42°.
Pressure30.36 inHg
Wind11.1 mph S
Humidity83%
Visibility—
Dew point41°
Thu, 1952° / 44°0
52 °
Grand Isle, Thursday, 19 November
Overcast. High 52°, low 44°.
Pressure30.33 inHg
Wind19.2 mph S
Humidity72%
Visibility—
Dew point36°
Fri, 2054° / 43°0
54 °
Grand Isle, Friday, 20 November
Light rain. High 54°, low 43°.
Pressure30.18 inHg
Wind17 mph NW
Humidity72%
Visibility—
Dew point43°
Sat, 2146° / 38°0.01
46 °
Grand Isle, Saturday, 21 November
Light rain. High 46°, low 38°.
Pressure30.36 inHg
Wind18.5 mph S
Humidity65%
Visibility—
Dew point28°
Sun, 2250° / 44°0.19
50 °
Grand Isle, Sunday, 22 November
Light rain. High 50°, low 44°.
Pressure30.15 inHg
Wind18.3 mph S
Humidity84%
Visibility—
Dew point43°
Mon, 2356° / 50°0
56 °
Grand Isle, Monday, 23 November
Mostly clear. High 56°, low 50°.
Pressure30.12 inHg
Wind26.7 mph S
Humidity87%
Visibility—
Dew point47°
Tue, 2460° / 51°0
60 °
Grand Isle, Tuesday, 24 November
Overcast. High 60°, low 51°.
Pressure30.09 inHg
Wind34.4 mph S
Humidity85%
Visibility—
Dew point48°
Wed, 2560° / 34°1.99
60 °
Grand Isle, Wednesday, 25 November
Snow. High 60°, low 34°.
Pressure30.06 inHg
Wind36.7 mph S
Humidity86%
Visibility—
Dew point44°
Thu, 2633° / 26°1.08
33 °
Grand Isle, Thursday, 26 November
Snow. High 33°, low 26°.
Pressure30.30 inHg
Wind26.6 mph N
Humidity94%
Visibility—
Dew point27°
Fri, 2731° / 25°0
31 °
Grand Isle, Friday, 27 November
Clear. High 31°, low 25°.
Pressure30.27 inHg
Wind18.1 mph N
Humidity62%
Visibility—
Dew point15°
Sat, 2837° / 26°0
37 °
Grand Isle, Saturday, 28 November
Mostly clear. High 37°, low 26°.
Pressure30.47 inHg
Wind22.9 mph S
Humidity83%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2938° / 28°0.08
38 °
Grand Isle, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.08 in
Chance of precipitation32%
Record high59° (2005)
Record low11° (1995)
Mon, 3038° / 27°0.1
38 °
Grand Isle, Monday, 30 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.1 in
Chance of precipitation42%
Record high61° (2006)
Record low7° (1995)
Tue, 0138° / 27°0.15
38 °
Grand Isle, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.15 in
Chance of precipitation40%
Record high56° (1991)
Record low6° (1989)
Wed, 0237° / 26°0.1
37 °
Grand Isle, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.1 in
Chance of precipitation45%
Record high53° (1998)
Record low4° (1989)
Thu, 0336° / 26°0.15
36 °
Grand Isle, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high36°
Average low26°
Average precipitation0.15 in
Chance of precipitation52%
Record high54° (1982)
Record low-5° (1976)
Fri, 0435° / 24°0.09
35 °
Grand Isle, Friday, 4 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.09 in
Chance of precipitation40%
Record high58° (1982)
Record low2° (1989)
Sat, 0534° / 24°0.08
34 °
Grand Isle, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high34°
Average low24°
Average precipitation0.08 in
Chance of precipitation35%
Record high53° (1999)
Record low1° (2025)
Sun, 0636° / 25°0.12
36 °
Grand Isle, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high36°
Average low25°
Average precipitation0.12 in
Chance of precipitation48%
Record high58° (1982)
Record low8° (1989)
Mon, 0733° / 22°0.1
33 °
Grand Isle, Monday, 7 December
Climate normal for this date — 60-year average.
Average high33°
Average low22°
Average precipitation0.1 in
Chance of precipitation43%
Record high58° (1998)
Record low2° (1972)
Tue, 0831° / 20°0.07
31 °
Grand Isle, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high31°
Average low20°
Average precipitation0.07 in
Chance of precipitation37%
Record high48° (1966)
Record low-2° (1989)
Wed, 0933° / 21°0.1
33 °
Grand Isle, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high33°
Average low21°
Average precipitation0.1 in
Chance of precipitation43%
Record high56° (1966)
Record low-8° (2025)
Thu, 1034° / 22°0.09
34 °
Grand Isle, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.09 in
Chance of precipitation32%
Record high52° (1966)
Record low-4° (1976)
Fri, 1133° / 21°0.13
33 °
Grand Isle, Friday, 11 December
Climate normal for this date — 60-year average.
Average high33°
Average low21°
Average precipitation0.13 in
Chance of precipitation35%
Record high53° (2015)
Record low-1° (1977)
Sat, 1232° / 20°0.09
32 °
Grand Isle, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high32°
Average low20°
Average precipitation0.09 in
Chance of precipitation35%
Record high48° (1979)
Record low-5° (1977)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Grand Isle, VT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Grand Isle, VT since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.