Monthly outlook for Lyon Valley, PA: average high 56°, average low 43°. That is 1.7° above the climate normal for November. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 4 November (69.3°), the coolest 14 November (29°).
56°/43°
Average high / low
+1.7°
Above normal
4 / 5
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
2 November – 11 November
61°
54.8°
+3.5°
12 November – 21 November
47.7°
49.5°
-1°
22 November – 1 December
at normal
46.9°
—
November records over 66 years
79.3°6 November 2024All-time high
7.5°24 November 1989All-time low
Climate normals and records are computed from the nearest reference point — Stiles (9 mi).
Tue, 0368° / 39°0
68 °
Lyon Valley, Tuesday, 3 November
Overcast. High 68°, low 39°.
Pressure30.30 inHg
Wind6.6 mph SW
Humidity51%
Visibility6.2 mi
Dew point44°
Wed, 0469° / 45°0
69 °
Lyon Valley, Wednesday, 4 November
Clear. High 69°, low 45°.
Pressure30.15 inHg
Wind6 mph S
Humidity68%
Visibility6.2 mi
Dew point55°
Thu, 0564° / 54°0.23
64 °
Lyon Valley, Thursday, 5 November
Light rain. High 64°, low 54°.
Pressure29.94 inHg
Wind5.6 mph S
Humidity97%
Visibility2.3 mi
Dew point62°
Fri, 0666° / 59°0.81
66 °
Lyon Valley, Friday, 6 November
Rain. High 66°, low 59°.
Pressure29.88 inHg
Wind3 mph NE
Humidity99%
Visibility—
Dew point62°
Sat, 0769° / 56°0.01
69 °
Lyon Valley, Saturday, 7 November
Light rain. High 69°, low 56°.
Pressure29.83 inHg
Wind8 mph NW
Humidity82%
Visibility—
Dew point57°
Sun, 0854° / 41°0
54 °
Lyon Valley, Sunday, 8 November
Partly cloudy. High 54°, low 41°.
Pressure29.91 inHg
Wind7.4 mph SW
Humidity58%
Visibility—
Dew point35°
Mon, 0954° / 46°0.84
54 °
Lyon Valley, Monday, 9 November
Rain. High 54°, low 46°.
Pressure29.59 inHg
Wind11.7 mph SW
Humidity93%
Visibility—
Dew point49°
Tue, 1051° / 42°0.01
51 °
Lyon Valley, Tuesday, 10 November
Light rain. High 51°, low 42°.
Pressure29.80 inHg
Wind17.5 mph W
Humidity60%
Visibility—
Dew point33°
Wed, 1152° / 41°0
52 °
Lyon Valley, Wednesday, 11 November
Clear. High 52°, low 41°.
Pressure30.09 inHg
Wind16.2 mph NW
Humidity56%
Visibility—
Dew point31°
Thu, 1251° / 42°0
51 °
Lyon Valley, Thursday, 12 November
Light rain. High 51°, low 42°.
Pressure29.88 inHg
Wind7.2 mph W
Humidity68%
Visibility—
Dew point37°
Fri, 1349° / 36°0
49 °
Lyon Valley, Friday, 13 November
Mostly clear. High 49°, low 36°.
Pressure30.03 inHg
Wind11 mph NW
Humidity58%
Visibility—
Dew point30°
Sat, 1443° / 29°0
43 °
Lyon Valley, Saturday, 14 November
Clear. High 43°, low 29°.
Pressure30.30 inHg
Wind10 mph NW
Humidity47%
Visibility—
Dew point19°
Sun, 1546° / 30°0
46 °
Lyon Valley, Sunday, 15 November
Overcast. High 46°, low 30°.
Pressure30.30 inHg
Wind5.1 mph S
Humidity47%
Visibility—
Dew point20°
Mon, 1645° / 40°0.03
45 °
Lyon Valley, Monday, 16 November
Light rain. High 45°, low 40°.
Pressure30.21 inHg
Wind14.5 mph E
Humidity62%
Visibility—
Dew point30°
Tue, 1752° / 46°0.31
52 °
Lyon Valley, Tuesday, 17 November
Rain. High 52°, low 46°.
Pressure29.88 inHg
Wind15.3 mph E
Humidity98%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1849° / 34°0.1
49 °
Lyon Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (1963)
Record low23° (1997)
Thu, 1949° / 34°0.09
49 °
Lyon Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.09 in
Chance of precipitation27%
Record high65° (2016)
Record low19° (2014)
Fri, 2049° / 33°0.13
49 °
Lyon Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.13 in
Chance of precipitation25%
Record high71° (1985)
Record low22° (1980)
Sat, 2148° / 33°0.12
48 °
Lyon Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.12 in
Chance of precipitation28%
Record high62° (1991)
Record low18° (1987)
Sun, 2247° / 34°0.13
47 °
Lyon Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.13 in
Chance of precipitation32%
Record high66° (2007)
Record low17° (2018)
Mon, 2347° / 32°0.09
47 °
Lyon Valley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.09 in
Chance of precipitation22%
Record high65° (1979)
Record low15° (2018)
Tue, 2448° / 33°0.12
48 °
Lyon Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.12 in
Chance of precipitation35%
Record high66° (2014)
Record low8° (1989)
Wed, 2547° / 32°0.15
47 °
Lyon Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.15 in
Chance of precipitation37%
Record high69° (1979)
Record low19° (2005)
Thu, 2649° / 33°0.2
49 °
Lyon Valley, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.2 in
Chance of precipitation40%
Record high64° (1979)
Record low22° (2005)
Fri, 2748° / 33°0.11
48 °
Lyon Valley, Friday, 27 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.11 in
Chance of precipitation30%
Record high62° (2015)
Record low22° (2014)
Sat, 2848° / 34°0.22
48 °
Lyon Valley, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.22 in
Chance of precipitation33%
Record high65° (1990)
Record low13° (2014)
Sun, 2946° / 32°0.14
46 °
Lyon Valley, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.14 in
Chance of precipitation35%
Record high64° (1990)
Record low18° (2014)
Mon, 3045° / 31°0.13
45 °
Lyon Valley, Monday, 30 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.13 in
Chance of precipitation35%
Record high64° (1991)
Record low18° (1976)
Tue, 0145° / 31°0.16
45 °
Lyon Valley, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.16 in
Chance of precipitation35%
Record high67° (2006)
Record low12° (1967)
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 Lyon Valley, 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 Lyon Valley, 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.