10-day forecast for Union, PA: 50° to 86°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Sunday, August 9
82° · 0.3 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0986° / 66°0
Morning69°feels 70°
Afternoon84°feels 84°
Evening77°feels 78°
Overnight71°feels 71°
86 °
Union, Sunday, 9 August
Clear. High 86°, low 66°.
Pressure30.06 inHg
Wind3.7 mph SW
Humidity56%
Visibility6.2 mi
Dew point63°
Mon, 1083° / 69°0.22
Morning70°feels 72°
Afternoon77°feels 79°
Evening74°feels 75°
Overnight71°feels 72°
83 °
Union, Monday, 10 August
Rain. High 83°, low 69°.
Pressure29.97 inHg
Wind10.2 mph SW
Humidity90%
Visibility6.2 mi
Dew point69°
Tue, 1182° / 61°0.3
Morning64°feels 65°
Afternoon82°feels 84°
Evening63°feels 64°
Overnight64°feels 65°
82 °
Union, Tuesday, 11 August
Rain. High 82°, low 61°.
Pressure29.94 inHg
Wind8.4 mph SW
Humidity60%
Visibility6.2 mi
Dew point64°
Wed, 1282° / 64°0.12
Morning67°feels 69°
Afternoon82°feels 83°
Evening69°feels 70°
Overnight67°feels 69°
82 °
Union, Wednesday, 12 August
Light rain. High 82°, low 64°.
Pressure29.77 inHg
Wind9.4 mph W
Humidity71%
Visibility6.2 mi
Dew point66°
Thu, 1370° / 53°0.07
Morning61°feels 61°
Afternoon68°feels 67°
Evening59°feels 58°
Overnight54°feels 53°
70 °
Union, Thursday, 13 August
Light rain. High 70°, low 53°.
Pressure29.94 inHg
Wind11.5 mph NW
Humidity48%
Visibility—
Dew point47°
Fri, 1473° / 50°0
Morning61°feels 60°
Afternoon71°feels 70°
Evening61°feels 60°
Overnight56°feels 55°
73 °
Union, Friday, 14 August
Clear. High 73°, low 50°.
Pressure30.06 inHg
Wind11.2 mph NW
Humidity39%
Visibility—
Dew point45°
Sat, 1574° / 52°0
Morning62°feels 61°
Afternoon72°feels 71°
Evening60°feels 59°
Overnight56°feels 55°
74 °
Union, Saturday, 15 August
Mostly clear. High 74°, low 52°.
Pressure30.24 inHg
Wind9.1 mph N
Humidity41%
Visibility—
Dew point46°
Sun, 1678° / 52°0
Morning63°feels 62°
Afternoon76°feels 76°
Evening64°feels 64°
Overnight58°feels 58°
78 °
Union, Sunday, 16 August
Overcast. High 78°, low 52°.
Pressure30.15 inHg
Wind4.7 mph N
Humidity39%
Visibility—
Dew point49°
Mon, 1780° / 56°0
Morning66°feels 65°
Afternoon76°feels 76°
Evening66°feels 66°
Overnight60°feels 60°
80 °
Union, Monday, 17 August
Overcast. High 80°, low 56°.
Pressure30.03 inHg
Wind4.6 mph SW
Humidity45%
Visibility—
Dew point53°
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.