10-day forecast for Union, PA: 48° 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
85° · 0.09 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0988° / 68°0
Morning72°feels 74°
Afternoon85°feels 84°
Evening77°feels 78°
Overnight68°feels 69°
88 °
Union, Sunday, 9 August
Light rain. High 88°, low 68°.
Pressure30.06 inHg
Wind5.3 mph W
Humidity51%
Visibility6.2 mi
Dew point61°
Mon, 1081° / 66°0.06
Morning67°feels 68°
Afternoon76°feels 76°
Evening75°feels 76°
Overnight67°feels 67°
81 °
Union, Monday, 10 August
Light rain. High 81°, low 66°.
Pressure30.00 inHg
Wind9.5 mph SW
Humidity70%
Visibility6.2 mi
Dew point65°
Tue, 1185° / 66°0.09
Morning68°feels 68°
Afternoon84°feels 85°
Evening70°feels 71°
Overnight68°feels 70°
85 °
Union, Tuesday, 11 August
Rain. High 85°, low 66°.
Pressure29.94 inHg
Wind6.8 mph W
Humidity57%
Visibility6.2 mi
Dew point64°
Wed, 1284° / 63°0.06
Morning67°feels 68°
Afternoon79°feels 79°
Evening75°feels 75°
Overnight63°feels 64°
84 °
Union, Wednesday, 12 August
Light rain. High 84°, low 63°.
Pressure29.77 inHg
Wind7.3 mph W
Humidity84%
Visibility6.2 mi
Dew point67°
Thu, 1375° / 56°0
Morning67°feels 67°
Afternoon73°feels 72°
Evening64°feels 62°
Overnight58°feels 57°
75 °
Union, Thursday, 13 August
Clear. High 75°, low 56°.
Pressure29.85 inHg
Wind11.8 mph NW
Humidity33%
Visibility—
Dew point43°
Fri, 1476° / 50°0
Morning61°feels 60°
Afternoon73°feels 72°
Evening58°feels 57°
Overnight53°feels 52°
76 °
Union, Friday, 14 August
Clear. High 76°, low 50°.
Pressure30.03 inHg
Wind8.4 mph NW
Humidity36%
Visibility—
Dew point44°
Sat, 1574° / 48°0
Morning59°feels 58°
Afternoon70°feels 69°
Evening60°feels 58°
Overnight54°feels 53°
74 °
Union, Saturday, 15 August
Clear. High 74°, low 48°.
Pressure30.21 inHg
Wind8.8 mph N
Humidity36%
Visibility—
Dew point42°
Sun, 1676° / 49°0
Morning61°feels 60°
Afternoon73°feels 72°
Evening61°feels 60°
Overnight58°feels 56°
76 °
Union, Sunday, 16 August
Mostly clear. High 76°, low 49°.
Pressure30.30 inHg
Wind3.3 mph SE
Humidity36%
Visibility—
Dew point44°
Mon, 1782° / 53°0
Morning64°feels 63°
Afternoon77°feels 77°
Evening67°feels 67°
Overnight65°feels 64°
82 °
Union, Monday, 17 August
Overcast. High 82°, low 53°.
Pressure30.12 inHg
Wind6.2 mph SW
Humidity42%
Visibility—
Dew point51°
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.