Monthly outlook for Sylvan Dell, PA: average high 58.7°, average low 40.6°. That is 3.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 26 October (69.5°), the coolest 25 October (32.7°).
58.7°/40.6°
Average high / low
+3.1°
Above normal
3 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
61.2°
54.4°
+3.8°
4 November – 13 November
54.4°
49.6°
+2.7°
14 November – 23 November
at normal
45.2°
—
October records over 66 years
85.1°8 October 2007All-time high
23.7°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Upper Fairfield (7 mi).
Mon, 2669° / 33°0
69 °
Sylvan Dell, Monday, 26 October
Mostly clear. High 69°, low 33°.
Pressure30.30 inHg
Wind4.3 mph SW
Humidity61%
Visibility6.2 mi
Dew point47°
Tue, 2759° / 39°0
59 °
Sylvan Dell, Tuesday, 27 October
Clear. High 59°, low 39°.
Pressure30.39 inHg
Wind2.5 mph NE
Humidity52%
Visibility6.2 mi
Dew point37°
Wed, 2861° / 39°0
61 °
Sylvan Dell, Wednesday, 28 October
Overcast. High 61°, low 39°.
Pressure30.45 inHg
Wind5.1 mph SE
Humidity74%
Visibility6.2 mi
Dew point45°
Thu, 2965° / 43°0
65 °
Sylvan Dell, Thursday, 29 October
Mostly clear. High 65°, low 43°.
Pressure30.27 inHg
Wind4 mph SE
Humidity70%
Visibility6.2 mi
Dew point48°
Fri, 3069° / 46°0.02
69 °
Sylvan Dell, Friday, 30 October
Light rain. High 69°, low 46°.
Pressure30.12 inHg
Wind6.4 mph W
Humidity69%
Visibility—
Dew point48°
Sat, 3156° / 39°0
56 °
Sylvan Dell, Saturday, 31 October
Overcast. High 56°, low 39°.
Pressure30.39 inHg
Wind2.5 mph NW
Humidity62%
Visibility—
Dew point37°
Sun, 0155° / 41°0
55 °
Sylvan Dell, Sunday, 1 November
Overcast. High 55°, low 41°.
Pressure30.36 inHg
Wind2.7 mph S
Humidity60%
Visibility—
Dew point36°
Mon, 0259° / 42°0
59 °
Sylvan Dell, Monday, 2 November
Overcast. High 59°, low 42°.
Pressure30.27 inHg
Wind3 mph N
Humidity67%
Visibility—
Dew point41°
Tue, 0355° / 43°0
55 °
Sylvan Dell, Tuesday, 3 November
Overcast. High 55°, low 43°.
Pressure30.27 inHg
Wind11.5 mph E
Humidity62%
Visibility—
Dew point41°
Wed, 0442° / 39°0.29
42 °
Sylvan Dell, Wednesday, 4 November
Light rain. High 42°, low 39°.
Pressure30.21 inHg
Wind4.7 mph N
Humidity74%
Visibility—
Dew point32°
Thu, 0558° / 43°0.07
58 °
Sylvan Dell, Thursday, 5 November
Light rain. High 58°, low 43°.
Pressure29.91 inHg
Wind7 mph NW
Humidity75%
Visibility—
Dew point42°
Fri, 0659° / 41°0
59 °
Sylvan Dell, Friday, 6 November
Overcast. High 59°, low 41°.
Pressure30.00 inHg
Wind2.8 mph NW
Humidity69%
Visibility—
Dew point37°
Sat, 0759° / 45°0
59 °
Sylvan Dell, Saturday, 7 November
Overcast. High 59°, low 45°.
Pressure30.06 inHg
Wind4.6 mph SE
Humidity74%
Visibility—
Dew point44°
Sun, 0859° / 42°0.02
59 °
Sylvan Dell, Sunday, 8 November
Light rain. High 59°, low 42°.
Pressure29.83 inHg
Wind10.5 mph S
Humidity79%
Visibility—
Dew point44°
Mon, 0949° / 42°0.69
49 °
Sylvan Dell, Monday, 9 November
Rain. High 49°, low 42°.
Pressure29.32 inHg
Wind13 mph W
Humidity99%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1049° / 36°0.17
49 °
Sylvan Dell, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.17 in
Chance of precipitation48%
Record high67° (2020)
Record low20° (2017)
Wed, 1148° / 36°0.14
48 °
Sylvan Dell, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.14 in
Chance of precipitation38%
Record high64° (2022)
Record low19° (2017)
Thu, 1247° / 34°0.19
47 °
Sylvan Dell, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.19 in
Chance of precipitation35%
Record high66° (1964)
Record low20° (2019)
Fri, 1346° / 33°0.08
46 °
Sylvan Dell, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation35%
Record high65° (1964)
Record low18° (1986)
Sat, 1446° / 33°0.09
46 °
Sylvan Dell, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation27%
Record high63° (1989)
Record low11° (1986)
Sun, 1547° / 33°0.15
47 °
Sylvan Dell, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.15 in
Chance of precipitation48%
Record high67° (1993)
Record low14° (1986)
Mon, 1646° / 33°0.15
46 °
Sylvan Dell, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.15 in
Chance of precipitation35%
Record high62° (1990)
Record low17° (1967)
Tue, 1745° / 32°0.12
45 °
Sylvan Dell, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.12 in
Chance of precipitation33%
Record high61° (1987)
Record low9° (1995)
Wed, 1846° / 33°0.09
46 °
Sylvan Dell, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation32%
Record high63° (1963)
Record low12° (1997)
Thu, 1946° / 32°0.11
46 °
Sylvan Dell, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation23%
Record high62° (2016)
Record low15° (2014)
Fri, 2045° / 32°0.11
45 °
Sylvan Dell, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.11 in
Chance of precipitation33%
Record high67° (1991)
Record low10° (1986)
Sat, 2144° / 31°0.11
44 °
Sylvan Dell, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.11 in
Chance of precipitation32%
Record high60° (2003)
Record low13° (1980)
Sun, 2243° / 31°0.11
43 °
Sylvan Dell, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.11 in
Chance of precipitation32%
Record high59° (1963)
Record low8° (2018)
Mon, 2344° / 30°0.08
44 °
Sylvan Dell, Monday, 23 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation25%
Record high60° (1979)
Record low10° (2018)
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 Sylvan Dell, 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 Sylvan Dell, 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.