10-day forecast for Union, WI: 55° to 84°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
80°
Best day: Monday, August 17
79° · 1.15 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0979° / 62°1.15
Morning69°feels 70°
Afternoon76°feels 78°
Evening77°feels 79°
Overnight64°feels 65°
79 °
Union, Sunday, 9 August
Heavy rain. High 79°, low 62°.
Pressure29.91 inHg
Wind4.6 mph E
Humidity98%
Visibility6.2 mi
Dew point68°
Mon, 1083° / 69°0.2
Morning72°feels 73°
Afternoon82°feels 87°
Evening76°feels 78°
Overnight72°feels 73°
83 °
Union, Monday, 10 August
Rain. High 83°, low 69°.
Pressure29.91 inHg
Wind4.4 mph E
Humidity74%
Visibility6.2 mi
Dew point71°
Tue, 1184° / 67°0.85
Morning69°feels 70°
Afternoon82°feels 87°
Evening74°feels 75°
Overnight70°feels 71°
84 °
Union, Tuesday, 11 August
Heavy rain. High 84°, low 67°.
Pressure29.77 inHg
Wind4.5 mph N
Humidity77%
Visibility6.2 mi
Dew point71°
Wed, 1280° / 66°0
Morning71°feels 72°
Afternoon80°feels 80°
Evening70°feels 70°
Overnight67°feels 68°
80 °
Union, Wednesday, 12 August
Overcast. High 80°, low 66°.
Pressure29.88 inHg
Wind9.8 mph N
Humidity68%
Visibility6.2 mi
Dew point67°
Thu, 1367° / 57°0
Morning60°feels 60°
Afternoon67°feels 67°
Evening66°feels 66°
Overnight60°feels 60°
67 °
Union, Thursday, 13 August
Overcast. High 67°, low 57°.
Pressure30.03 inHg
Wind9.2 mph E
Humidity78%
Visibility—
Dew point59°
Fri, 1477° / 55°0
Morning63°feels 63°
Afternoon75°feels 75°
Evening72°feels 72°
Overnight66°feels 66°
77 °
Union, Friday, 14 August
Mostly clear. High 77°, low 55°.
Pressure30.12 inHg
Wind5.2 mph S
Humidity57%
Visibility—
Dew point57°
Sat, 1572° / 57°0
Morning62°feels 62°
Afternoon70°feels 70°
Evening63°feels 63°
Overnight57°feels 57°
72 °
Union, Saturday, 15 August
Overcast. High 72°, low 57°.
Pressure30.27 inHg
Wind11.3 mph SW
Humidity61%
Visibility—
Dew point56°
Sun, 1673° / 55°0
Morning63°feels 62°
Afternoon70°feels 70°
Evening69°feels 69°
Overnight63°feels 63°
73 °
Union, Sunday, 16 August
Overcast. High 73°, low 55°.
Pressure30.15 inHg
Wind5.4 mph S
Humidity71%
Visibility—
Dew point58°
Mon, 1780° / 60°0
Morning65°feels 65°
Afternoon77°feels 78°
Evening74°feels 75°
Overnight67°feels 68°
80 °
Union, Monday, 17 August
Mostly clear. High 80°, low 60°.
Pressure30.03 inHg
Wind6.2 mph SW
Humidity65%
Visibility—
Dew point62°
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, WI 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.