Monthly outlook for Big Run, PA: average high 60.8°, average low 43.7°. That is 3° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 16 October (72.7°), the coolest 18 October (32.4°).
60.8°/43.7°
Average high / low
+3°
Above normal
4 / 6
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
63.2°
56.5°
+3.7°
24 October – 2 November
56.8°
53.6°
+1.8°
3 November – 12 November
at normal
49.3°
—
October records over 66 years
82.9°8 October 2007All-time high
18.1°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Oliver (11 mi).
Thu, 1567° / 51°0
67 °
Big Run, Thursday, 15 October
Clear. High 67°, low 51°.
Pressure30.18 inHg
Wind7.9 mph E
Humidity62%
Visibility6.2 mi
Dew point47°
Fri, 1673° / 53°0.45
73 °
Big Run, Friday, 16 October
Heavy rain. High 73°, low 53°.
Pressure29.74 inHg
Wind20.3 mph SW
Humidity67%
Visibility6.2 mi
Dew point61°
Sat, 1751° / 36°0.01
51 °
Big Run, Saturday, 17 October
Light rain. High 51°, low 36°.
Pressure30.33 inHg
Wind11.3 mph N
Humidity61%
Visibility6.2 mi
Dew point30°
Sun, 1856° / 32°0
56 °
Big Run, Sunday, 18 October
Clear. High 56°, low 32°.
Pressure30.56 inHg
Wind2.8 mph E
Humidity49%
Visibility6.2 mi
Dew point31°
Mon, 1963° / 34°0
63 °
Big Run, Monday, 19 October
Clear. High 63°, low 34°.
Pressure30.33 inHg
Wind7.8 mph N
Humidity32%
Visibility—
Dew point29°
Tue, 2062° / 40°0
62 °
Big Run, Tuesday, 20 October
Overcast. High 62°, low 40°.
Pressure30.33 inHg
Wind4.6 mph N
Humidity49%
Visibility—
Dew point40°
Wed, 2164° / 44°0
64 °
Big Run, Wednesday, 21 October
Clear. High 64°, low 44°.
Pressure30.39 inHg
Wind4.8 mph E
Humidity63%
Visibility—
Dew point44°
Thu, 2266° / 46°0.02
66 °
Big Run, Thursday, 22 October
Light rain. High 66°, low 46°.
Pressure30.27 inHg
Wind7.3 mph SW
Humidity68%
Visibility—
Dew point47°
Fri, 2360° / 54°0.55
60 °
Big Run, Friday, 23 October
Rain. High 60°, low 54°.
Pressure30.09 inHg
Wind6.9 mph S
Humidity98%
Visibility—
Dew point57°
Sat, 2464° / 54°0
64 °
Big Run, Saturday, 24 October
Overcast. High 64°, low 54°.
Pressure30.27 inHg
Wind9.9 mph S
Humidity88%
Visibility—
Dew point55°
Sun, 2566° / 49°0.24
66 °
Big Run, Sunday, 25 October
Rain. High 66°, low 49°.
Pressure30.15 inHg
Wind8.1 mph S
Humidity79%
Visibility—
Dew point54°
Mon, 2650° / 37°0.01
50 °
Big Run, Monday, 26 October
Light rain. High 50°, low 37°.
Pressure30.27 inHg
Wind9.1 mph W
Humidity61%
Visibility—
Dew point35°
Tue, 2752° / 34°0
52 °
Big Run, Tuesday, 27 October
Clear. High 52°, low 34°.
Pressure30.39 inHg
Wind4.6 mph N
Humidity55%
Visibility—
Dew point29°
Wed, 2853° / 38°0
53 °
Big Run, Wednesday, 28 October
Overcast. High 53°, low 38°.
Pressure30.27 inHg
Wind4 mph SE
Humidity56%
Visibility—
Dew point32°
Thu, 2955° / 39°0
55 °
Big Run, Thursday, 29 October
Overcast. High 55°, low 39°.
Pressure30.15 inHg
Wind8.9 mph SW
Humidity61%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3053° / 37°0.11
53 °
Big Run, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.11 in
Chance of precipitation30%
Record high72° (2024)
Record low26° (1983)
Sat, 3154° / 39°0.13
54 °
Big Run, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.13 in
Chance of precipitation37%
Record high75° (2024)
Record low18° (2002)
Sun, 0154° / 40°0.11
54 °
Big Run, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation43%
Record high69° (1974)
Record low23° (2002)
Mon, 0253° / 39°0.16
53 °
Big Run, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.16 in
Chance of precipitation42%
Record high71° (1982)
Record low24° (1976)
Tue, 0352° / 37°0.08
52 °
Big Run, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.08 in
Chance of precipitation35%
Record high71° (1961)
Record low24° (2002)
Wed, 0451° / 37°0.1
51 °
Big Run, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high71° (2003)
Record low21° (1991)
Thu, 0551° / 37°0.1
51 °
Big Run, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation45%
Record high75° (2024)
Record low17° (1991)
Fri, 0650° / 37°0.1
50 °
Big Run, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation38%
Record high71° (2022)
Record low22° (1995)
Sat, 0749° / 35°0.12
49 °
Big Run, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.12 in
Chance of precipitation38%
Record high67° (1975)
Record low23° (1967)
Sun, 0849° / 34°0.11
49 °
Big Run, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.11 in
Chance of precipitation33%
Record high68° (2020)
Record low21° (1967)
Mon, 0949° / 35°0.11
49 °
Big Run, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation38%
Record high69° (2020)
Record low20° (1976)
Tue, 1049° / 35°0.18
49 °
Big Run, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.18 in
Chance of precipitation48%
Record high71° (2020)
Record low19° (2017)
Wed, 1147° / 35°0.17
47 °
Big Run, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.17 in
Chance of precipitation38%
Record high64° (1964)
Record low17° (2017)
Thu, 1246° / 33°0.15
46 °
Big Run, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.15 in
Chance of precipitation43%
Record high64° (1964)
Record low18° (2019)
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 Big Run, 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 Big Run, 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.