10-day forecast for Union, SC: 69° to 102°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
102°
Best day: Wednesday, August 12
95° · 0.54 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1092° / 73°0
Morning75°feels 76°
Afternoon92°feels 92°
Evening81°feels 83°
Overnight73°feels 75°
92 °
Union, Monday, 10 August
Mostly clear. High 92°, low 73°.
Pressure30.09 inHg
Wind7 mph W
Humidity42%
Visibility6.2 mi
Dew point67°
Tue, 1199° / 73°0
Morning77°feels 78°
Afternoon98°feels 100°
Evening88°feels 91°
Overnight76°feels 77°
99 °
Union, Tuesday, 11 August
Mostly clear. High 99°, low 73°.
Pressure30.00 inHg
Wind5 mph SW
Humidity39%
Visibility6.2 mi
Dew point66°
Wed, 12102° / 74°0.01
Morning77°feels 78°
Afternoon98°feels 100°
Evening81°feels 84°
Overnight76°feels 76°
102 °
Union, Wednesday, 12 August
Light rain. High 102°, low 74°.
Pressure29.91 inHg
Wind5.9 mph SW
Humidity40%
Visibility6.2 mi
Dew point66°
Thu, 1397° / 75°0
Morning83°feels 84°
Afternoon95°feels 98°
Evening84°feels 89°
Overnight79°feels 79°
97 °
Union, Thursday, 13 August
Overcast. High 97°, low 75°.
Pressure29.88 inHg
Wind7.6 mph W
Humidity34%
Visibility—
Dew point62°
Fri, 1495° / 74°0.54
Morning81°feels 83°
Afternoon92°feels 96°
Evening74°feels 76°
Overnight74°feels 76°
95 °
Union, Friday, 14 August
Rain. High 95°, low 74°.
Pressure30.00 inHg
Wind11.7 mph SW
Humidity41%
Visibility—
Dew point65°
Sat, 1576° / 70°0.21
Morning72°feels 73°
Afternoon76°feels 77°
Evening74°feels 76°
Overnight72°feels 73°
76 °
Union, Saturday, 15 August
Light rain. High 76°, low 70°.
Pressure30.18 inHg
Wind4.4 mph NE
Humidity87%
Visibility—
Dew point71°
Sun, 1690° / 71°0.16
Morning78°feels 81°
Afternoon88°feels 95°
Evening81°feels 85°
Overnight75°feels 76°
90 °
Union, Sunday, 16 August
Rain. High 90°, low 71°.
Pressure30.09 inHg
Wind8.1 mph S
Humidity58%
Visibility—
Dew point70°
Mon, 1799° / 69°0.28
Morning79°feels 83°
Afternoon96°feels 103°
Evening80°feels 84°
Overnight72°feels 73°
99 °
Union, Monday, 17 August
Light rain. High 99°, low 69°.
Pressure29.91 inHg
Wind8.5 mph N
Humidity41%
Visibility—
Dew point67°
Tue, 1892° / 69°0.01
Morning76°feels 76°
Afternoon89°feels 90°
Evening79°feels 81°
Overnight73°feels 74°
92 °
Union, Tuesday, 18 August
Light rain. High 92°, low 69°.
Pressure29.94 inHg
Wind6.8 mph NE
Humidity40%
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 Union, SC 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.