10-day forecast for South Union, ME: 54° to 88°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
87°
Best day: Monday, August 10
75° · 0.28 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1087° / 66°0
Morning73°feels 73°
Afternoon82°feels 81°
Evening73°feels 73°
Overnight67°feels 67°
87 °
South Union, Monday, 10 August
Partly cloudy. High 87°, low 66°.
Pressure29.94 inHg
Wind6.3 mph SW
Humidity34%
Visibility6.2 mi
Dew point55°
Tue, 1183° / 62°0.04
Morning69°feels 70°
Afternoon73°feels 74°
Evening69°feels 68°
Overnight66°feels 67°
83 °
South Union, Tuesday, 11 August
Light rain. High 83°, low 62°.
Pressure29.71 inHg
Wind6.3 mph W
Humidity47%
Visibility6.2 mi
Dew point61°
Wed, 1283° / 59°0.02
Morning68°feels 68°
Afternoon83°feels 81°
Evening68°feels 67°
Overnight62°feels 61°
83 °
South Union, Wednesday, 12 August
Light rain. High 83°, low 59°.
Pressure29.77 inHg
Wind9.6 mph NW
Humidity27%
Visibility6.2 mi
Dew point45°
Thu, 1375° / 60°0.28
Morning65°feels 66°
Afternoon73°feels 73°
Evening70°feels 71°
Overnight60°feels 61°
75 °
South Union, Thursday, 13 August
Light rain. High 75°, low 60°.
Pressure29.62 inHg
Wind10.8 mph NW
Humidity74%
Visibility—
Dew point62°
Fri, 1473° / 55°0
Morning59°feels 57°
Afternoon69°feels 68°
Evening70°feels 69°
Overnight59°feels 58°
73 °
South Union, Friday, 14 August
Partly cloudy. High 73°, low 55°.
Pressure29.74 inHg
Wind15.5 mph NW
Humidity52%
Visibility—
Dew point48°
Sat, 1578° / 56°0
Morning60°feels 59°
Afternoon73°feels 71°
Evening74°feels 73°
Overnight57°feels 55°
78 °
South Union, Saturday, 15 August
Mostly clear. High 78°, low 56°.
Pressure29.94 inHg
Wind13 mph NW
Humidity39%
Visibility—
Dew point43°
Sun, 1679° / 54°0
Morning60°feels 59°
Afternoon76°feels 75°
Evening72°feels 71°
Overnight60°feels 59°
79 °
South Union, Sunday, 16 August
Clear. High 79°, low 54°.
Pressure30.09 inHg
Wind8.3 mph S
Humidity32%
Visibility—
Dew point42°
Mon, 1774° / 59°0.01
Morning65°feels 65°
Afternoon73°feels 72°
Evening66°feels 65°
Overnight60°feels 59°
74 °
South Union, Monday, 17 August
Light rain. High 74°, low 59°.
Pressure30.00 inHg
Wind10 mph S
Humidity51%
Visibility—
Dew point53°
Tue, 1869° / 55°0.08
Morning60°feels 60°
Afternoon63°feels 63°
Evening67°feels 67°
Overnight56°feels 55°
69 °
South Union, Tuesday, 18 August
Light rain. High 69°, low 55°.
Pressure29.94 inHg
Wind8.6 mph NE
Humidity97%
Visibility—
Dew point60°
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 South Union, ME 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.