Monthly outlook for Chestnut Hill, MD: average high 61.4°, average low 47.3°. That is 2° above the climate normal for October. Precipitation is expected on 3 days (about 4.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 30 October (70.7°), the coolest 12 November (37°).
61.4°/47.3°
Average high / low
+2°
Above normal
3 / 4
Wet days / normal
4.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
65.1°
59.1°
+3.3°
7 November – 16 November
55.2°
54.4°
+0.4°
17 November – 26 November
at normal
50.9°
—
October records over 66 years
92.1°2 October 2019All-time high
28.4°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Parkville (4 mi).
Thu, 2970° / 46°0
70 °
Chestnut Hill, Thursday, 29 October
Partly cloudy. High 70°, low 46°.
Pressure30.24 inHg
Wind7.4 mph SW
Humidity67%
Visibility6.2 mi
Dew point54°
Fri, 3071° / 51°0
71 °
Chestnut Hill, Friday, 30 October
Clear. High 71°, low 51°.
Pressure30.15 inHg
Wind10.3 mph NW
Humidity55%
Visibility6.2 mi
Dew point51°
Sat, 3159° / 45°0
59 °
Chestnut Hill, Saturday, 31 October
Overcast. High 59°, low 45°.
Pressure30.47 inHg
Wind4 mph N
Humidity54%
Visibility6.2 mi
Dew point39°
Sun, 0162° / 45°0
62 °
Chestnut Hill, Sunday, 1 November
Mostly clear. High 62°, low 45°.
Pressure30.47 inHg
Wind3.8 mph SE
Humidity53%
Visibility6.2 mi
Dew point42°
Mon, 0268° / 45°0
68 °
Chestnut Hill, Monday, 2 November
Partly cloudy. High 68°, low 45°.
Pressure30.33 inHg
Wind3.9 mph SE
Humidity60%
Visibility—
Dew point45°
Tue, 0365° / 50°0
65 °
Chestnut Hill, Tuesday, 3 November
Overcast. High 65°, low 50°.
Pressure30.24 inHg
Wind6.2 mph E
Humidity63%
Visibility—
Dew point46°
Wed, 0463° / 54°0
63 °
Chestnut Hill, Wednesday, 4 November
Overcast. High 63°, low 54°.
Pressure30.15 inHg
Wind10.8 mph E
Humidity84%
Visibility—
Dew point53°
Thu, 0563° / 56°3.94
63 °
Chestnut Hill, Thursday, 5 November
Heavy rain. High 63°, low 56°.
Pressure29.71 inHg
Wind19.4 mph E
Humidity97%
Visibility—
Dew point59°
Fri, 0665° / 52°0.04
65 °
Chestnut Hill, Friday, 6 November
Light rain. High 65°, low 52°.
Pressure29.53 inHg
Wind15.1 mph W
Humidity79%
Visibility—
Dew point56°
Sat, 0755° / 46°0
55 °
Chestnut Hill, Saturday, 7 November
Clear. High 55°, low 46°.
Pressure30.00 inHg
Wind13.8 mph W
Humidity50%
Visibility—
Dew point33°
Sun, 0855° / 42°0
55 °
Chestnut Hill, Sunday, 8 November
Clear. High 55°, low 42°.
Pressure30.21 inHg
Wind10.8 mph W
Humidity44%
Visibility—
Dew point28°
Mon, 0959° / 47°0
59 °
Chestnut Hill, Monday, 9 November
Overcast. High 59°, low 47°.
Pressure30.15 inHg
Wind8.3 mph S
Humidity42%
Visibility—
Dew point31°
Tue, 1058° / 54°0.04
58 °
Chestnut Hill, Tuesday, 10 November
Light rain. High 58°, low 54°.
Pressure29.80 inHg
Wind11.3 mph S
Humidity80%
Visibility—
Dew point48°
Wed, 1157° / 42°0.07
57 °
Chestnut Hill, Wednesday, 11 November
Light rain. High 57°, low 42°.
Pressure29.71 inHg
Wind18.3 mph W
Humidity65%
Visibility—
Dew point38°
Thu, 1247° / 37°0
47 °
Chestnut Hill, Thursday, 12 November
Mostly clear. High 47°, low 37°.
Pressure29.83 inHg
Wind17.7 mph NW
Humidity51%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1352° / 39°0.11
52 °
Chestnut Hill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation37%
Record high70° (1964)
Record low21° (2019)
Sat, 1453° / 39°0.07
53 °
Chestnut Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation17%
Record high70° (1985)
Record low24° (1986)
Sun, 1554° / 39°0.1
54 °
Chestnut Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation32%
Record high74° (1993)
Record low26° (1967)
Mon, 1653° / 39°0.15
53 °
Chestnut Hill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.15 in
Chance of precipitation30%
Record high70° (2001)
Record low24° (1967)
Tue, 1752° / 38°0.08
52 °
Chestnut Hill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.08 in
Chance of precipitation30%
Record high67° (2023)
Record low26° (1995)
Wed, 1852° / 38°0.06
52 °
Chestnut Hill, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation27%
Record high69° (2021)
Record low26° (2014)
Thu, 1952° / 38°0.1
52 °
Chestnut Hill, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation28%
Record high67° (1985)
Record low22° (2014)
Fri, 2052° / 38°0.08
52 °
Chestnut Hill, Friday, 20 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.08 in
Chance of precipitation25%
Record high73° (1985)
Record low24° (2022)
Sat, 2151° / 37°0.09
51 °
Chestnut Hill, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation27%
Record high71° (1991)
Record low22° (2022)
Sun, 2250° / 37°0.13
50 °
Chestnut Hill, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.13 in
Chance of precipitation32%
Record high69° (2007)
Record low22° (2018)
Mon, 2349° / 35°0.07
49 °
Chestnut Hill, Monday, 23 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation25%
Record high66° (1979)
Record low18° (1989)
Tue, 2450° / 37°0.13
50 °
Chestnut Hill, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.13 in
Chance of precipitation30%
Record high66° (1979)
Record low15° (1989)
Wed, 2550° / 36°0.11
50 °
Chestnut Hill, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation37%
Record high69° (1973)
Record low19° (1989)
Thu, 2652° / 37°0.15
52 °
Chestnut Hill, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.15 in
Chance of precipitation37%
Record high65° (2025)
Record low26° (2005)
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 Chestnut Hill, MD 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 Chestnut Hill, MD 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.