10-day forecast for Union, PA: 51° to 88°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
88°
Best day: Sunday, August 9
83° · 0.63 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0988° / 66°0
Morning68°feels 69°
Afternoon84°feels 84°
Evening80°feels 80°
Overnight72°feels 73°
88 °
Union, Sunday, 9 August
Clear. High 88°, low 66°.
Pressure30.06 inHg
Wind5 mph SW
Humidity51%
Visibility6.2 mi
Dew point59°
Mon, 1083° / 67°0.63
Morning70°feels 72°
Afternoon77°feels 79°
Evening76°feels 77°
Overnight72°feels 73°
83 °
Union, Monday, 10 August
Rain. High 83°, low 67°.
Pressure30.00 inHg
Wind11.7 mph SW
Humidity89%
Visibility6.2 mi
Dew point69°
Tue, 1181° / 63°0.18
Morning65°feels 66°
Afternoon79°feels 79°
Evening64°feels 65°
Overnight63°feels 64°
81 °
Union, Tuesday, 11 August
Rain. High 81°, low 63°.
Pressure29.94 inHg
Wind8.7 mph SW
Humidity67%
Visibility6.2 mi
Dew point66°
Wed, 1283° / 66°0.04
Morning67°feels 69°
Afternoon82°feels 84°
Evening73°feels 74°
Overnight68°feels 69°
83 °
Union, Wednesday, 12 August
Light rain. High 83°, low 66°.
Pressure29.77 inHg
Wind10 mph W
Humidity64%
Visibility6.2 mi
Dew point67°
Thu, 1373° / 56°0.01
Morning64°feels 63°
Afternoon71°feels 70°
Evening62°feels 60°
Overnight57°feels 56°
73 °
Union, Thursday, 13 August
Light rain. High 73°, low 56°.
Pressure29.94 inHg
Wind12.3 mph NW
Humidity38%
Visibility—
Dew point44°
Fri, 1476° / 52°0
Morning62°feels 61°
Afternoon74°feels 73°
Evening63°feels 62°
Overnight58°feels 57°
76 °
Union, Friday, 14 August
Clear. High 76°, low 52°.
Pressure30.06 inHg
Wind8.7 mph N
Humidity41%
Visibility—
Dew point48°
Sat, 1576° / 55°0
Morning64°feels 63°
Afternoon74°feels 74°
Evening64°feels 63°
Overnight57°feels 56°
76 °
Union, Saturday, 15 August
Mostly clear. High 76°, low 55°.
Pressure30.24 inHg
Wind9.1 mph N
Humidity38%
Visibility—
Dew point47°
Sun, 1678° / 51°0
Morning63°feels 62°
Afternoon77°feels 76°
Evening67°feels 66°
Overnight61°feels 60°
78 °
Union, Sunday, 16 August
Partly cloudy. High 78°, low 51°.
Pressure30.15 inHg
Wind3.4 mph E
Humidity37%
Visibility—
Dew point47°
Mon, 1774° / 58°0
Morning66°feels 65°
Afternoon73°feels 72°
Evening65°feels 64°
Overnight61°feels 60°
74 °
Union, Monday, 17 August
Overcast. High 74°, low 58°.
Pressure30.03 inHg
Wind5.4 mph SW
Humidity53%
Visibility—
Dew point55°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Union, PA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.