Monthly outlook for Union, PA: average high 60.9°, average low 42.5°. That is 1.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (78°), the coolest 18 October (28.7°).
60.9°/42.5°
Average high / low
+1.7°
Above normal
4 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
63.4°
59°
+2.5°
22 October – 31 October
56.6°
55.4°
+0.7°
1 November – 10 November
at normal
52.1°
—
October records over 66 years
85.1°1 October 2019All-time high
17.2°30 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Pine Grove Mills (12 mi).
Tue, 1378° / 54°0
78 °
Union, Tuesday, 13 October
Mostly clear. High 78°, low 54°.
Pressure29.91 inHg
Wind7 mph SW
Humidity68%
Visibility6.2 mi
Dew point62°
Wed, 1474° / 58°0.05
74 °
Union, Wednesday, 14 October
Light rain. High 74°, low 58°.
Pressure29.97 inHg
Wind9.6 mph W
Humidity80%
Visibility3.4 mi
Dew point63°
Thu, 1562° / 50°0
62 °
Union, Thursday, 15 October
Mostly clear. High 62°, low 50°.
Pressure30.27 inHg
Wind3.2 mph NE
Humidity58%
Visibility6.2 mi
Dew point44°
Fri, 1661° / 49°0.67
61 °
Union, Friday, 16 October
Rain. High 61°, low 49°.
Pressure29.74 inHg
Wind19.8 mph NW
Humidity84%
Visibility—
Dew point55°
Sat, 1753° / 37°0
53 °
Union, Saturday, 17 October
Clear. High 53°, low 37°.
Pressure30.30 inHg
Wind14.9 mph NW
Humidity55%
Visibility—
Dew point31°
Sun, 1852° / 29°0
52 °
Union, Sunday, 18 October
Clear. High 52°, low 29°.
Pressure30.59 inHg
Wind9.1 mph S
Humidity41%
Visibility—
Dew point19°
Mon, 1962° / 33°0
62 °
Union, Monday, 19 October
Clear. High 62°, low 33°.
Pressure30.47 inHg
Wind4.5 mph SW
Humidity50%
Visibility—
Dew point32°
Tue, 2062° / 42°0
62 °
Union, Tuesday, 20 October
Overcast. High 62°, low 42°.
Pressure30.36 inHg
Wind4.7 mph W
Humidity62%
Visibility—
Dew point41°
Wed, 2162° / 44°0
62 °
Union, Wednesday, 21 October
Clear. High 62°, low 44°.
Pressure30.45 inHg
Wind5.7 mph E
Humidity60%
Visibility—
Dew point42°
Thu, 2259° / 40°0
59 °
Union, Thursday, 22 October
Clear. High 59°, low 40°.
Pressure30.56 inHg
Wind8.4 mph S
Humidity66%
Visibility—
Dew point40°
Fri, 2366° / 40°0.06
66 °
Union, Friday, 23 October
Light rain. High 66°, low 40°.
Pressure30.30 inHg
Wind13.6 mph SW
Humidity71%
Visibility—
Dew point43°
Sat, 2452° / 36°0.01
52 °
Union, Saturday, 24 October
Light rain. High 52°, low 36°.
Pressure30.36 inHg
Wind13.1 mph N
Humidity58%
Visibility—
Dew point34°
Sun, 2550° / 31°0
50 °
Union, Sunday, 25 October
Overcast. High 50°, low 31°.
Pressure30.33 inHg
Wind4.6 mph S
Humidity50%
Visibility—
Dew point25°
Mon, 2659° / 44°0.37
59 °
Union, Monday, 26 October
Rain. High 59°, low 44°.
Pressure29.80 inHg
Wind8.5 mph N
Humidity93%
Visibility—
Dew point46°
Tue, 2755° / 39°0
55 °
Union, Tuesday, 27 October
Clear. High 55°, low 39°.
Pressure30.06 inHg
Wind9.2 mph N
Humidity62%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2855° / 39°0.09
55 °
Union, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.09 in
Chance of precipitation35%
Record high74° (2014)
Record low24° (1976)
Thu, 2953° / 38°0.17
53 °
Union, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.17 in
Chance of precipitation30%
Record high69° (2016)
Record low24° (1965)
Fri, 3054° / 37°0.11
54 °
Union, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (2024)
Record low17° (2011)
Sat, 3155° / 38°0.07
55 °
Union, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high78° (2024)
Record low23° (2002)
Sun, 0155° / 40°0.08
55 °
Union, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.08 in
Chance of precipitation27%
Record high73° (1974)
Record low19° (2002)
Mon, 0255° / 40°0.12
55 °
Union, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.12 in
Chance of precipitation30%
Record high74° (1982)
Record low24° (2002)
Tue, 0354° / 38°0.06
54 °
Union, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation32%
Record high71° (2003)
Record low24° (2002)
Wed, 0452° / 37°0.09
52 °
Union, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation25%
Record high72° (2003)
Record low24° (2006)
Thu, 0552° / 37°0.09
52 °
Union, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation33%
Record high71° (2022)
Record low20° (1991)
Fri, 0652° / 37°0.06
52 °
Union, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation32%
Record high75° (2022)
Record low25° (1967)
Sat, 0750° / 36°0.1
50 °
Union, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.1 in
Chance of precipitation35%
Record high67° (1975)
Record low25° (1962)
Sun, 0851° / 35°0.12
51 °
Union, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.12 in
Chance of precipitation27%
Record high70° (2020)
Record low23° (1967)
Mon, 0951° / 36°0.1
51 °
Union, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation30%
Record high70° (2020)
Record low21° (2019)
Tue, 1050° / 36°0.15
50 °
Union, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.15 in
Chance of precipitation42%
Record high71° (2020)
Record low19° (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, 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, 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.