10-day forecast for Union, PA: 49° to 83°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
83°
Best day: Sunday, August 9
81° · 0.21 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1079° / 65°0.08
Morning68°feels 69°
Afternoon81°feels 81°
Evening73°feels 74°
Overnight69°feels 70°
79 °
Union, Monday, 10 August
Light rain. High 79°, low 65°.
Pressure30.06 inHg
Wind4 mph W
Humidity55%
Visibility6.2 mi
Dew point62°
Tue, 1181° / 62°0.21
Morning65°feels 66°
Afternoon73°feels 73°
Evening75°feels 76°
Overnight66°feels 66°
81 °
Union, Tuesday, 11 August
Rain. High 81°, low 62°.
Pressure30.03 inHg
Wind8.7 mph SW
Humidity95%
Visibility6.2 mi
Dew point67°
Wed, 1282° / 63°0.13
Morning64°feels 65°
Afternoon81°feels 82°
Evening66°feels 67°
Overnight65°feels 66°
82 °
Union, Wednesday, 12 August
Light rain. High 82°, low 63°.
Pressure29.94 inHg
Wind8.5 mph SW
Humidity62%
Visibility6.2 mi
Dew point64°
Thu, 1372° / 53°0.02
Morning67°feels 68°
Afternoon81°feels 82°
Evening69°feels 70°
Overnight65°feels 66°
72 °
Union, Thursday, 13 August
Light rain. High 72°, low 53°.
Pressure29.77 inHg
Wind8.9 mph W
Humidity71%
Visibility6.2 mi
Dew point66°
Fri, 1475° / 49°0
Morning60°feels 59°
Afternoon73°feels 71°
Evening60°feels 58°
Overnight55°feels 54°
75 °
Union, Friday, 14 August
Clear. High 75°, low 49°.
Pressure30.03 inHg
Wind11 mph NW
Humidity37%
Visibility—
Dew point44°
Sat, 1574° / 51°0
Morning61°feels 60°
Afternoon72°feels 71°
Evening61°feels 60°
Overnight56°feels 55°
74 °
Union, Saturday, 15 August
Partly cloudy. High 74°, low 51°.
Pressure30.24 inHg
Wind7.9 mph NW
Humidity38%
Visibility—
Dew point44°
Sun, 1676° / 51°0
Morning62°feels 61°
Afternoon74°feels 73°
Evening63°feels 62°
Overnight58°feels 57°
76 °
Union, Sunday, 16 August
Overcast. High 76°, low 51°.
Pressure30.15 inHg
Wind5 mph SW
Humidity38%
Visibility—
Dew point46°
Mon, 1778° / 57°0
Morning65°feels 65°
Afternoon76°feels 75°
Evening65°feels 64°
Overnight60°feels 59°
78 °
Union, Monday, 17 August
Overcast. High 78°, low 57°.
Pressure30.03 inHg
Wind5.8 mph SW
Humidity46%
Visibility—
Dew point53°
Tue, 1882° / 56°0.01
Morning67°feels 67°
Afternoon80°feels 80°
Evening68°feels 68°
Overnight64°feels 64°
82 °
Union, Tuesday, 18 August
Light rain. High 82°, low 56°.
Pressure30.00 inHg
Wind6.1 mph S
Humidity46%
Visibility—
Dew point56°
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.