Monthly outlook for Garmantown, PA: average high 49.1°, average low 34.5°. That is 1.9° above the climate normal for November. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 11 November (61.4°), the coolest 25 November (22.6°).
49.1°/34.5°
Average high / low
+1.9°
Above normal
6 / 6
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
48.6°
46.7°
+1.1°
20 November – 29 November
50°
43.7°
+3.5°
30 November – 9 December
at normal
39.2°
—
November records over 66 years
74.5°5 November 2024All-time high
6.3°16 November 1967All-time low
Climate normals and records are computed from the nearest reference point — Westover (8 mi).
Wed, 1161° / 39°0.03
61 °
Garmantown, Wednesday, 11 November
Light rain. High 61°, low 39°.
Pressure29.91 inHg
Wind4.5 mph SW
Humidity46%
Visibility6.2 mi
Dew point35°
Thu, 1249° / 38°0.17
49 °
Garmantown, Thursday, 12 November
Light rain. High 49°, low 38°.
Pressure29.53 inHg
Wind1.8 mph NW
Humidity93%
Visibility4.1 mi
Dew point45°
Fri, 1339° / 32°0
39 °
Garmantown, Friday, 13 November
Overcast. High 39°, low 32°.
Pressure29.77 inHg
Wind9.8 mph NW
Humidity75%
Visibility6.2 mi
Dew point25°
Sat, 1441° / 30°0
41 °
Garmantown, Saturday, 14 November
Overcast. High 41°, low 30°.
Pressure30.00 inHg
Wind13.8 mph NW
Humidity80%
Visibility—
Dew point30°
Sun, 1541° / 32°0
41 °
Garmantown, Sunday, 15 November
Overcast. High 41°, low 32°.
Pressure30.36 inHg
Wind11.4 mph NW
Humidity80%
Visibility—
Dew point31°
Mon, 1645° / 29°0
45 °
Garmantown, Monday, 16 November
Partly cloudy. High 45°, low 29°.
Pressure30.45 inHg
Wind2.9 mph NE
Humidity54%
Visibility—
Dew point27°
Tue, 1748° / 30°0
48 °
Garmantown, Tuesday, 17 November
Clear. High 48°, low 30°.
Pressure30.42 inHg
Wind3.3 mph NW
Humidity51%
Visibility—
Dew point28°
Wed, 1849° / 30°0
49 °
Garmantown, Wednesday, 18 November
Clear. High 49°, low 30°.
Pressure30.42 inHg
Wind2.6 mph NE
Humidity43%
Visibility—
Dew point25°
Thu, 1952° / 32°0
52 °
Garmantown, Thursday, 19 November
Overcast. High 52°, low 32°.
Pressure30.42 inHg
Wind7.2 mph SE
Humidity41%
Visibility—
Dew point27°
Fri, 2055° / 36°0
55 °
Garmantown, Friday, 20 November
Overcast. High 55°, low 36°.
Pressure30.33 inHg
Wind6.8 mph SE
Humidity57%
Visibility—
Dew point37°
Sat, 2153° / 43°0.4
53 °
Garmantown, Saturday, 21 November
Rain. High 53°, low 43°.
Pressure30.06 inHg
Wind6.8 mph S
Humidity87%
Visibility—
Dew point45°
Sun, 2255° / 46°0.36
55 °
Garmantown, Sunday, 22 November
Rain. High 55°, low 46°.
Pressure30.00 inHg
Wind8.6 mph NW
Humidity95%
Visibility—
Dew point49°
Mon, 2358° / 45°0.81
58 °
Garmantown, Monday, 23 November
Rain. High 58°, low 45°.
Pressure29.74 inHg
Wind17.3 mph SE
Humidity95%
Visibility—
Dew point47°
Tue, 2447° / 31°0.09
47 °
Garmantown, Tuesday, 24 November
Snow. High 47°, low 31°.
Pressure29.74 inHg
Wind20.3 mph SW
Humidity74%
Visibility—
Dew point28°
Wed, 2532° / 23°0.11
32 °
Garmantown, Wednesday, 25 November
Light snow. High 32°, low 23°.
Pressure30.00 inHg
Wind15.1 mph SW
Humidity80%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2645° / 32°0.19
45 °
Garmantown, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.19 in
Chance of precipitation48%
Record high61° (1979)
Record low16° (2005)
Fri, 2744° / 32°0.14
44 °
Garmantown, Friday, 27 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.14 in
Chance of precipitation52%
Record high64° (1990)
Record low19° (1974)
Sat, 2843° / 32°0.21
43 °
Garmantown, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.21 in
Chance of precipitation53%
Record high67° (1990)
Record low17° (2002)
Sun, 2941° / 30°0.09
41 °
Garmantown, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.09 in
Chance of precipitation38%
Record high60° (1998)
Record low13° (1976)
Mon, 3041° / 30°0.12
41 °
Garmantown, Monday, 30 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.12 in
Chance of precipitation42%
Record high65° (1991)
Record low6° (1976)
Tue, 0141° / 29°0.16
41 °
Garmantown, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.16 in
Chance of precipitation45%
Record high64° (2006)
Record low6° (1976)
Wed, 0240° / 28°0.12
40 °
Garmantown, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.12 in
Chance of precipitation47%
Record high64° (1982)
Record low5° (1971)
Thu, 0340° / 27°0.13
40 °
Garmantown, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.13 in
Chance of precipitation45%
Record high65° (1982)
Record low-3° (1976)
Fri, 0440° / 27°0.11
40 °
Garmantown, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.11 in
Chance of precipitation38%
Record high65° (2012)
Record low-6° (1966)
Sat, 0539° / 28°0.13
39 °
Garmantown, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.13 in
Chance of precipitation52%
Record high65° (1982)
Record low7° (1974)
Sun, 0639° / 27°0.15
39 °
Garmantown, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.15 in
Chance of precipitation55%
Record high65° (1998)
Record low9° (1974)
Mon, 0737° / 26°0.11
37 °
Garmantown, Monday, 7 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.11 in
Chance of precipitation43%
Record high63° (1998)
Record low9° (2007)
Tue, 0837° / 26°0.1
37 °
Garmantown, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.1 in
Chance of precipitation33%
Record high62° (1966)
Record low9° (1977)
Wed, 0938° / 25°0.16
38 °
Garmantown, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.16 in
Chance of precipitation37%
Record high64° (1966)
Record low0° (2002)
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 Garmantown, PA 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 Garmantown, PA 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.