10-day forecast for Unión, PR: 74° to 89°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
85°
Best day: Sunday, November 1
89° · 0.45 in
Worst day: Friday, October 23
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 2485° / 78°0.16
Morning81°feels 87°
Afternoon84°feels 91°
Evening80°feels 80°
Overnight79°feels 79°
85 °
Unión, Saturday, 24 October
Light rain. High 85°, low 78°.
Pressure29.97 inHg
Wind9.7 mph SE
Humidity73%
Visibility5.9 mi
Dew point74°
Sun, 2584° / 77°0.18
Morning80°feels 80°
Afternoon83°feels 89°
Evening77°feels 79°
Overnight78°feels 80°
84 °
Unión, Sunday, 25 October
Light rain. High 84°, low 77°.
Pressure29.94 inHg
Wind10.9 mph SE
Humidity70%
Visibility6.2 mi
Dew point74°
Mon, 2685° / 75°0.01
Morning78°feels 79°
Afternoon84°feels 91°
Evening78°feels 80°
Overnight76°feels 77°
85 °
Unión, Monday, 26 October
Light rain. High 85°, low 75°.
Pressure29.94 inHg
Wind9.7 mph SE
Humidity68%
Visibility6.2 mi
Dew point74°
Tue, 2780° / 75°0.11
Morning79°feels 79°
Afternoon77°feels 79°
Evening78°feels 78°
Overnight75°feels 76°
80 °
Unión, Tuesday, 27 October
Light rain. High 80°, low 75°.
Pressure29.97 inHg
Wind6.5 mph SE
Humidity82%
Visibility3.3 mi
Dew point74°
Wed, 2884° / 74°0
Morning77°feels 79°
Afternoon83°feels 88°
Evening80°feels 84°
Overnight74°feels 75°
84 °
Unión, Wednesday, 28 October
Mostly clear. High 84°, low 74°.
Pressure30.00 inHg
Wind7.4 mph SE
Humidity66%
Visibility—
Dew point70°
Thu, 2985° / 74°0.01
Morning77°feels 79°
Afternoon84°feels 90°
Evening82°feels 87°
Overnight77°feels 78°
85 °
Unión, Thursday, 29 October
Light rain. High 85°, low 74°.
Pressure29.97 inHg
Wind10.4 mph SE
Humidity65%
Visibility—
Dew point70°
Fri, 3084° / 76°0.02
Morning78°feels 81°
Afternoon84°feels 91°
Evening81°feels 86°
Overnight78°feels 79°
84 °
Unión, Friday, 30 October
Light rain. High 84°, low 76°.
Pressure29.94 inHg
Wind8.5 mph SE
Humidity70%
Visibility—
Dew point72°
Sat, 3185° / 77°0.15
Morning79°feels 82°
Afternoon84°feels 90°
Evening81°feels 86°
Overnight78°feels 79°
85 °
Unión, Saturday, 31 October
Light rain. High 85°, low 77°.
Pressure29.97 inHg
Wind9.4 mph SE
Humidity69%
Visibility—
Dew point72°
Sun, 0185° / 76°0
Morning79°feels 80°
Afternoon84°feels 87°
Evening82°feels 86°
Overnight77°feels 79°
85 °
Unión, Sunday, 1 November
Overcast. High 85°, low 76°.
Pressure29.97 inHg
Wind7.9 mph SE
Humidity53%
Visibility—
Dew point64°
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 Unión, PR 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.