Monthly outlook for Rittenhouse, PA: average high 58.7°, average low 40.9°. That is 0.2° below the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 8 October (68.9°), the coolest 19 October (27.6°).
58.7°/40.9°
Average high / low
−0.2°
Below normal
2 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
61°
60.2°
+0.4°
18 October – 27 October
54.8°
56.1°
-0.8°
28 October – 6 November
at normal
53.1°
—
October records over 66 years
82.9°8 October 2007All-time high
22.1°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Pikes Creek (8 mi).
Fri, 0969° / 39°0
69 °
Rittenhouse, Friday, 9 October
Clear. High 69°, low 39°.
Pressure30.18 inHg
Wind9.8 mph NW
Humidity45%
Visibility6.2 mi
Dew point38°
Sat, 1063° / 38°0
63 °
Rittenhouse, Saturday, 10 October
Overcast. High 63°, low 38°.
Pressure30.45 inHg
Wind3.4 mph SE
Humidity47%
Visibility6.2 mi
Dew point41°
Sun, 1153° / 48°0.38
53 °
Rittenhouse, Sunday, 11 October
Rain. High 53°, low 48°.
Pressure30.30 inHg
Wind11.5 mph SE
Humidity97%
Visibility2.3 mi
Dew point49°
Mon, 1264° / 53°0.01
64 °
Rittenhouse, Monday, 12 October
Light rain. High 64°, low 53°.
Pressure29.80 inHg
Wind8 mph N
Humidity79%
Visibility6.2 mi
Dew point55°
Tue, 1365° / 47°0.12
65 °
Rittenhouse, Tuesday, 13 October
Light rain. High 65°, low 47°.
Pressure29.77 inHg
Wind14.6 mph N
Humidity98%
Visibility—
Dew point57°
Wed, 1454° / 41°0
54 °
Rittenhouse, Wednesday, 14 October
Overcast. High 54°, low 41°.
Pressure30.12 inHg
Wind13.6 mph N
Humidity66%
Visibility—
Dew point35°
Thu, 1553° / 39°0.02
53 °
Rittenhouse, Thursday, 15 October
Light rain. High 53°, low 39°.
Pressure30.27 inHg
Wind6.9 mph SW
Humidity53%
Visibility—
Dew point35°
Fri, 1668° / 52°0.02
68 °
Rittenhouse, Friday, 16 October
Light rain. High 68°, low 52°.
Pressure30.09 inHg
Wind6.4 mph W
Humidity91%
Visibility—
Dew point59°
Sat, 1752° / 38°0
52 °
Rittenhouse, Saturday, 17 October
Mostly clear. High 52°, low 38°.
Pressure30.12 inHg
Wind12.7 mph NW
Humidity56%
Visibility—
Dew point34°
Sun, 1844° / 29°0
44 °
Rittenhouse, Sunday, 18 October
Clear. High 44°, low 29°.
Pressure30.42 inHg
Wind11.7 mph N
Humidity44%
Visibility—
Dew point19°
Mon, 1951° / 28°0
51 °
Rittenhouse, Monday, 19 October
Clear. High 51°, low 28°.
Pressure30.62 inHg
Wind5.7 mph SW
Humidity40%
Visibility—
Dew point19°
Tue, 2059° / 33°0
59 °
Rittenhouse, Tuesday, 20 October
Clear. High 59°, low 33°.
Pressure30.45 inHg
Wind2.8 mph W
Humidity43%
Visibility—
Dew point27°
Wed, 2159° / 39°0
59 °
Rittenhouse, Wednesday, 21 October
Partly cloudy. High 59°, low 39°.
Pressure30.39 inHg
Wind7.2 mph S
Humidity52%
Visibility—
Dew point35°
Thu, 2254° / 40°0.01
54 °
Rittenhouse, Thursday, 22 October
Light rain. High 54°, low 40°.
Pressure30.24 inHg
Wind6.9 mph SW
Humidity56%
Visibility—
Dew point36°
Fri, 2362° / 44°0
62 °
Rittenhouse, Friday, 23 October
Overcast. High 62°, low 44°.
Pressure30.15 inHg
Wind8.1 mph NW
Humidity64%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2456° / 41°0.14
56 °
Rittenhouse, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.14 in
Chance of precipitation35%
Record high72° (1963)
Record low25° (1969)
Sun, 2556° / 42°0.14
56 °
Rittenhouse, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.14 in
Chance of precipitation30%
Record high72° (1963)
Record low28° (1962)
Mon, 2655° / 41°0.11
55 °
Rittenhouse, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.11 in
Chance of precipitation38%
Record high75° (1963)
Record low29° (1960)
Tue, 2755° / 41°0.16
55 °
Rittenhouse, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.16 in
Chance of precipitation28%
Record high75° (1963)
Record low27° (1976)
Wed, 2855° / 40°0.13
55 °
Rittenhouse, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.13 in
Chance of precipitation33%
Record high74° (1984)
Record low25° (1976)
Thu, 2953° / 38°0.16
53 °
Rittenhouse, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.16 in
Chance of precipitation27%
Record high69° (1989)
Record low26° (1965)
Fri, 3053° / 38°0.11
53 °
Rittenhouse, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation23%
Record high70° (2024)
Record low28° (1962)
Sat, 3153° / 38°0.07
53 °
Rittenhouse, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation22%
Record high74° (2024)
Record low22° (2002)
Sun, 0154° / 40°0.09
54 °
Rittenhouse, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (1974)
Record low23° (2002)
Mon, 0254° / 41°0.12
54 °
Rittenhouse, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.12 in
Chance of precipitation30%
Record high73° (1982)
Record low25° (2002)
Tue, 0354° / 39°0.08
54 °
Rittenhouse, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation28%
Record high71° (2003)
Record low25° (1993)
Wed, 0452° / 38°0.08
52 °
Rittenhouse, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.08 in
Chance of precipitation22%
Record high70° (2003)
Record low26° (2002)
Thu, 0552° / 38°0.1
52 °
Rittenhouse, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation33%
Record high69° (2022)
Record low18° (1962)
Fri, 0651° / 38°0.08
51 °
Rittenhouse, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.08 in
Chance of precipitation32%
Record high72° (2024)
Record low22° (1962)
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 Rittenhouse, 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 Rittenhouse, 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.