Monthly outlook for Union Square, PA: average high 66°, average low 48.2°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 13 October (78.6°), the coolest 19 October (34.7°).
66°/48.2°
Average high / low
+2.3°
Above normal
2 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
66.1°
62.9°
+1.8°
22 October – 31 October
65.7°
59.2°
+3.7°
1 November – 10 November
at normal
56.2°
—
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 (11 mi).
Tue, 1379° / 56°0
79 °
Union Square, Tuesday, 13 October
Clear. High 79°, low 56°.
Pressure29.94 inHg
Wind7.1 mph SW
Humidity69%
Visibility6.2 mi
Dew point63°
Wed, 1478° / 62°0
78 °
Union Square, Wednesday, 14 October
Overcast. High 78°, low 62°.
Pressure29.94 inHg
Wind7.4 mph W
Humidity78%
Visibility6.2 mi
Dew point66°
Thu, 1565° / 53°0
65 °
Union Square, Thursday, 15 October
Mostly clear. High 65°, low 53°.
Pressure30.24 inHg
Wind3.8 mph NE
Humidity63%
Visibility6.2 mi
Dew point49°
Fri, 1673° / 53°0.3
73 °
Union Square, Friday, 16 October
Light rain. High 73°, low 53°.
Pressure29.56 inHg
Wind11.2 mph W
Humidity82%
Visibility6.2 mi
Dew point67°
Sat, 1752° / 42°0
52 °
Union Square, Saturday, 17 October
Clear. High 52°, low 42°.
Pressure30.24 inHg
Wind18.6 mph NW
Humidity52%
Visibility—
Dew point31°
Sun, 1854° / 38°0
54 °
Union Square, Sunday, 18 October
Clear. High 54°, low 38°.
Pressure30.56 inHg
Wind6.8 mph SW
Humidity57%
Visibility—
Dew point33°
Mon, 1960° / 35°0
60 °
Union Square, Monday, 19 October
Clear. High 60°, low 35°.
Pressure30.62 inHg
Wind12.1 mph S
Humidity59%
Visibility—
Dew point36°
Tue, 2064° / 44°0
64 °
Union Square, Tuesday, 20 October
Overcast. High 64°, low 44°.
Pressure30.45 inHg
Wind4.3 mph SW
Humidity74%
Visibility—
Dew point46°
Wed, 2166° / 48°0
66 °
Union Square, Wednesday, 21 October
Clear. High 66°, low 48°.
Pressure30.27 inHg
Wind5.9 mph NW
Humidity69%
Visibility—
Dew point48°
Thu, 2266° / 48°0
66 °
Union Square, Thursday, 22 October
Clear. High 66°, low 48°.
Pressure30.27 inHg
Wind5.2 mph N
Humidity63%
Visibility—
Dew point46°
Fri, 2368° / 48°0
68 °
Union Square, Friday, 23 October
Partly cloudy. High 68°, low 48°.
Pressure30.27 inHg
Wind10.1 mph SW
Humidity65%
Visibility—
Dew point48°
Sat, 2472° / 51°0
72 °
Union Square, Saturday, 24 October
Overcast. High 72°, low 51°.
Pressure30.00 inHg
Wind11.9 mph SW
Humidity59%
Visibility—
Dew point47°
Sun, 2565° / 48°0.06
65 °
Union Square, Sunday, 25 October
Light rain. High 65°, low 48°.
Pressure29.80 inHg
Wind18.3 mph W
Humidity82%
Visibility—
Dew point53°
Mon, 2662° / 46°0
62 °
Union Square, Monday, 26 October
Clear. High 62°, low 46°.
Pressure30.21 inHg
Wind8.7 mph NW
Humidity63%
Visibility—
Dew point44°
Tue, 2760° / 44°0
60 °
Union Square, Tuesday, 27 October
Overcast. High 60°, low 44°.
Pressure30.27 inHg
Wind8.8 mph SE
Humidity65%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2859° / 44°0.13
59 °
Union Square, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.13 in
Chance of precipitation25%
Record high78° (1984)
Record low25° (1976)
Thu, 2957° / 42°0.2
57 °
Union Square, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.2 in
Chance of precipitation23%
Record high72° (1971)
Record low29° (1965)
Fri, 3058° / 40°0.1
58 °
Union Square, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.1 in
Chance of precipitation23%
Record high76° (2016)
Record low29° (1965)
Sat, 3158° / 41°0.06
58 °
Union Square, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.06 in
Chance of precipitation25%
Record high80° (2024)
Record low29° (1988)
Sun, 0159° / 44°0.07
59 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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 °
Union Square, 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)
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 Union Square, 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 Union Square, 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.