Monthly outlook for Mount Wilson, PA: average high 61.7°, average low 43.8°. That is 0.9° above the climate normal for October. Precipitation is expected on 3 days (about 2.5 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 16 October (80°), the coolest 22 October (35.5°).
61.7°/43.8°
Average high / low
+0.9°
Above normal
3 / 4
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
62.8°
61.2°
+0.9°
26 October – 4 November
59.8°
58.3°
+0.8°
5 November – 14 November
at normal
53.5°
—
October records over 66 years
88.2°2 October 2019All-time high
25.3°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Lebanon (7 mi).
Sat, 1761° / 43°0
61 °
Mount Wilson, Saturday, 17 October
Light rain. High 61°, low 43°.
Pressure30.24 inHg
Wind13 mph N
Humidity50%
Visibility6.2 mi
Dew point33°
Sun, 1856° / 36°0
56 °
Mount Wilson, Sunday, 18 October
Clear. High 56°, low 36°.
Pressure30.65 inHg
Wind1.5 mph SE
Humidity51%
Visibility6.2 mi
Dew point34°
Mon, 1962° / 39°0
62 °
Mount Wilson, Monday, 19 October
Clear. High 62°, low 39°.
Pressure30.50 inHg
Wind1 mph SE
Humidity60%
Visibility6.2 mi
Dew point43°
Tue, 2066° / 47°0
66 °
Mount Wilson, Tuesday, 20 October
Overcast. High 66°, low 47°.
Pressure30.27 inHg
Wind10.7 mph N
Humidity49%
Visibility—
Dew point38°
Wed, 2164° / 43°0
64 °
Mount Wilson, Wednesday, 21 October
Overcast. High 64°, low 43°.
Pressure30.21 inHg
Wind11.7 mph NE
Humidity53%
Visibility—
Dew point41°
Thu, 2257° / 35°0
57 °
Mount Wilson, Thursday, 22 October
Clear. High 57°, low 35°.
Pressure30.45 inHg
Wind10 mph NE
Humidity66%
Visibility—
Dew point37°
Fri, 2362° / 40°0
62 °
Mount Wilson, Friday, 23 October
Clear. High 62°, low 40°.
Pressure30.33 inHg
Wind4.9 mph NE
Humidity60%
Visibility—
Dew point39°
Sat, 2463° / 44°0
63 °
Mount Wilson, Saturday, 24 October
Clear. High 63°, low 44°.
Pressure30.42 inHg
Wind8.9 mph NE
Humidity55%
Visibility—
Dew point40°
Sun, 2558° / 43°0
58 °
Mount Wilson, Sunday, 25 October
Clear. High 58°, low 43°.
Pressure30.50 inHg
Wind11.1 mph E
Humidity63%
Visibility—
Dew point40°
Mon, 2659° / 41°0
59 °
Mount Wilson, Monday, 26 October
Overcast. High 59°, low 41°.
Pressure30.33 inHg
Wind6.5 mph NE
Humidity62%
Visibility—
Dew point40°
Tue, 2764° / 42°0
64 °
Mount Wilson, Tuesday, 27 October
Partly cloudy. High 64°, low 42°.
Pressure30.12 inHg
Wind6 mph NW
Humidity56%
Visibility—
Dew point39°
Wed, 2866° / 47°0
66 °
Mount Wilson, Wednesday, 28 October
Overcast. High 66°, low 47°.
Pressure30.09 inHg
Wind5.1 mph SE
Humidity66%
Visibility—
Dew point46°
Thu, 2956° / 52°1.3
56 °
Mount Wilson, Thursday, 29 October
Rain. High 56°, low 52°.
Pressure29.91 inHg
Wind16.3 mph E
Humidity90%
Visibility—
Dew point52°
Fri, 3054° / 47°0.14
54 °
Mount Wilson, Friday, 30 October
Rain. High 54°, low 47°.
Pressure30.00 inHg
Wind10.2 mph NE
Humidity82%
Visibility—
Dew point47°
Sat, 3160° / 45°0
60 °
Mount Wilson, Saturday, 31 October
Clear. High 60°, low 45°.
Pressure30.00 inHg
Wind10.1 mph W
Humidity68%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0159° / 44°0.07
59 °
Mount Wilson, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation23%
Record high77° (1974)
Record low24° (2002)
Mon, 0259° / 44°0.13
59 °
Mount Wilson, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.13 in
Chance of precipitation30%
Record high77° (1982)
Record low28° (2002)
Tue, 0358° / 42°0.08
58 °
Mount Wilson, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation30%
Record high76° (2003)
Record low27° (2002)
Wed, 0456° / 40°0.07
56 °
Mount Wilson, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (1987)
Record low28° (2006)
Thu, 0556° / 41°0.1
56 °
Mount Wilson, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.1 in
Chance of precipitation30%
Record high74° (2024)
Record low25° (1991)
Fri, 0655° / 41°0.07
55 °
Mount Wilson, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.07 in
Chance of precipitation28%
Record high80° (2024)
Record low26° (1967)
Sat, 0755° / 40°0.06
55 °
Mount Wilson, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1975)
Record low27° (1967)
Sun, 0855° / 39°0.17
55 °
Mount Wilson, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.17 in
Chance of precipitation18%
Record high73° (1975)
Record low26° (1960)
Mon, 0954° / 39°0.1
54 °
Mount Wilson, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation35%
Record high73° (1975)
Record low21° (2019)
Tue, 1055° / 39°0.17
55 °
Mount Wilson, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.17 in
Chance of precipitation43%
Record high73° (2020)
Record low24° (2017)
Wed, 1153° / 39°0.13
53 °
Mount Wilson, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation30%
Record high69° (2006)
Record low20° (2017)
Thu, 1251° / 38°0.17
51 °
Mount Wilson, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.17 in
Chance of precipitation40%
Record high70° (1964)
Record low24° (2019)
Fri, 1350° / 36°0.09
50 °
Mount Wilson, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation37%
Record high69° (1964)
Record low20° (2019)
Sat, 1451° / 36°0.07
51 °
Mount Wilson, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation23%
Record high71° (1993)
Record low22° (1986)
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 Mount Wilson, 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 Mount Wilson, 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.