Monthly outlook for South Lancaster, MA: average high 51.6°, average low 35.8°. That is 3.4° above the climate normal for November. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 29 November (64.1°), the coolest 25 November (26.2°).
51.6°/35.8°
Average high / low
+3.4°
Above normal
1 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
51.8°
45.9°
+3.3°
24 November – 3 December
51.2°
43.8°
+4.1°
4 December – 13 December
at normal
39°
—
November records over 66 years
75°1 November 2024All-time high
3.9°22 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Leominster (7 mi).
Sun, 1545° / 36°0
45 °
South Lancaster, Sunday, 15 November
Partly cloudy. High 45°, low 36°.
Pressure30.03 inHg
Wind11.8 mph NW
Humidity59%
Visibility6.2 mi
Dew point27°
Mon, 1646° / 34°0
46 °
South Lancaster, Monday, 16 November
Overcast. High 46°, low 34°.
Pressure30.33 inHg
Wind8.1 mph NW
Humidity64%
Visibility6.2 mi
Dew point31°
Tue, 1752° / 33°0
52 °
South Lancaster, Tuesday, 17 November
Clear. High 52°, low 33°.
Pressure30.39 inHg
Wind7 mph W
Humidity50%
Visibility6.2 mi
Dew point32°
Wed, 1859° / 40°0
59 °
South Lancaster, Wednesday, 18 November
Mostly clear. High 59°, low 40°.
Pressure30.36 inHg
Wind11.2 mph W
Humidity51%
Visibility—
Dew point34°
Thu, 1961° / 42°0
61 °
South Lancaster, Thursday, 19 November
Partly cloudy. High 61°, low 42°.
Pressure30.36 inHg
Wind10 mph W
Humidity45%
Visibility—
Dew point32°
Fri, 2059° / 43°0
59 °
South Lancaster, Friday, 20 November
Mostly clear. High 59°, low 43°.
Pressure30.15 inHg
Wind11.2 mph W
Humidity61%
Visibility—
Dew point41°
Sat, 2151° / 36°0
51 °
South Lancaster, Saturday, 21 November
Clear. High 51°, low 36°.
Pressure30.42 inHg
Wind4.7 mph E
Humidity69%
Visibility—
Dew point35°
Sun, 2254° / 37°0
54 °
South Lancaster, Sunday, 22 November
Overcast. High 54°, low 37°.
Pressure30.12 inHg
Wind10.4 mph S
Humidity68%
Visibility—
Dew point40°
Mon, 2349° / 33°0
49 °
South Lancaster, Monday, 23 November
Mostly clear. High 49°, low 33°.
Pressure29.68 inHg
Wind13.8 mph W
Humidity57%
Visibility—
Dew point32°
Tue, 2438° / 28°0
38 °
South Lancaster, Tuesday, 24 November
Clear. High 38°, low 28°.
Pressure30.03 inHg
Wind13.8 mph NW
Humidity37%
Visibility—
Dew point10°
Wed, 2544° / 26°0
44 °
South Lancaster, Wednesday, 25 November
Mostly clear. High 44°, low 26°.
Pressure30.45 inHg
Wind6 mph NW
Humidity37%
Visibility—
Dew point13°
Thu, 2649° / 30°0
49 °
South Lancaster, Thursday, 26 November
Overcast. High 49°, low 30°.
Pressure30.42 inHg
Wind9.8 mph SW
Humidity46%
Visibility—
Dew point23°
Fri, 2753° / 36°0
53 °
South Lancaster, Friday, 27 November
Overcast. High 53°, low 36°.
Pressure30.45 inHg
Wind6.8 mph W
Humidity69%
Visibility—
Dew point33°
Sat, 2859° / 38°0
59 °
South Lancaster, Saturday, 28 November
Partly cloudy. High 59°, low 38°.
Pressure30.42 inHg
Wind11.8 mph SW
Humidity65%
Visibility—
Dew point38°
Sun, 2964° / 46°0.44
64 °
South Lancaster, Sunday, 29 November
Rain. High 64°, low 46°.
Pressure29.94 inHg
Wind15.9 mph SW
Humidity78%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3043° / 30°0.11
43 °
South Lancaster, Monday, 30 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.11 in
Chance of precipitation32%
Record high62° (2006)
Record low17° (2013)
Tue, 0142° / 30°0.12
42 °
South Lancaster, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.12 in
Chance of precipitation33%
Record high64° (2001)
Record low12° (1967)
Wed, 0242° / 29°0.12
42 °
South Lancaster, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.12 in
Chance of precipitation25%
Record high61° (2006)
Record low10° (1971)
Thu, 0342° / 29°0.16
42 °
South Lancaster, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.16 in
Chance of precipitation38%
Record high63° (2009)
Record low7° (1976)
Fri, 0440° / 28°0.11
40 °
South Lancaster, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.11 in
Chance of precipitation23%
Record high64° (1982)
Record low6° (1989)
Sat, 0539° / 27°0.15
39 °
South Lancaster, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.15 in
Chance of precipitation30%
Record high63° (2001)
Record low3° (2025)
Sun, 0641° / 28°0.15
41 °
South Lancaster, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.15 in
Chance of precipitation50%
Record high66° (2001)
Record low10° (1971)
Mon, 0740° / 26°0.13
40 °
South Lancaster, Monday, 7 December
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.13 in
Chance of precipitation32%
Record high66° (1998)
Record low7° (1964)
Tue, 0837° / 24°0.09
37 °
South Lancaster, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.09 in
Chance of precipitation27%
Record high56° (2022)
Record low-3° (1964)
Wed, 0938° / 24°0.17
38 °
South Lancaster, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.17 in
Chance of precipitation37%
Record high57° (1991)
Record low5° (1968)
Thu, 1039° / 26°0.08
39 °
South Lancaster, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.08 in
Chance of precipitation35%
Record high60° (2023)
Record low2° (1968)
Fri, 1139° / 25°0.19
39 °
South Lancaster, Friday, 11 December
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.19 in
Chance of precipitation40%
Record high59° (2021)
Record low-2° (1977)
Sat, 1238° / 24°0.19
38 °
South Lancaster, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.19 in
Chance of precipitation38%
Record high60° (1979)
Record low-7° (1977)
Sun, 1338° / 24°0.09
38 °
South Lancaster, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.09 in
Chance of precipitation23%
Record high58° (1984)
Record low0° (1995)
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 South Lancaster, MA 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 South Lancaster, MA 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.