Monthly outlook for Arús, PR: average high 84.6°, average low 76°. That is 0° above the climate normal for October. Precipitation is expected on 16 days (about 3.9 inches), against a normal of 11 days and 2.4 inches. The warmest day looks like 8 October (87.8°), the coolest 10 October (73.9°).
84.6°/76°
Average high / low
+0°
Above normal
16 / 11
Wet days / normal
3.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
84.6°
84.7°
-0°
17 October – 26 October
84.5°
84.2°
+0.2°
27 October – 5 November
at normal
83.8°
—
October records over 66 years
92.3°8 October 2021All-time high
69.8°25 October 2008All-time low
Climate normals and records are computed from the nearest reference point — Potala Pastillo (2 mi).
Thu, 0888° / 77°0.23
88 °
Arús, Thursday, 8 October
Rain. High 88°, low 77°.
Pressure29.97 inHg
Wind6.9 mph SE
Humidity77%
Visibility6.2 mi
Dew point75°
Fri, 0985° / 76°0.07
85 °
Arús, Friday, 9 October
Light rain. High 85°, low 76°.
Pressure29.97 inHg
Wind11.2 mph SE
Humidity61%
Visibility5.2 mi
Dew point71°
Sat, 1085° / 74°0.22
85 °
Arús, Saturday, 10 October
Rain. High 85°, low 74°.
Pressure29.97 inHg
Wind7.4 mph SE
Humidity78%
Visibility4.4 mi
Dew point75°
Sun, 1183° / 74°0.13
83 °
Arús, Sunday, 11 October
Light rain. High 83°, low 74°.
Pressure30.00 inHg
Wind7.2 mph SE
Humidity72%
Visibility—
Dew point71°
Mon, 1283° / 74°0.08
83 °
Arús, Monday, 12 October
Light rain. High 83°, low 74°.
Pressure29.94 inHg
Wind8.2 mph SE
Humidity70%
Visibility—
Dew point70°
Tue, 1385° / 75°0.19
85 °
Arús, Tuesday, 13 October
Light rain. High 85°, low 75°.
Pressure29.91 inHg
Wind13.1 mph SE
Humidity63%
Visibility—
Dew point69°
Wed, 1485° / 77°0.44
85 °
Arús, Wednesday, 14 October
Rain. High 85°, low 77°.
Pressure29.97 inHg
Wind9.5 mph SE
Humidity71%
Visibility—
Dew point73°
Thu, 1585° / 78°0.2
85 °
Arús, Thursday, 15 October
Rain. High 85°, low 78°.
Pressure29.94 inHg
Wind8.8 mph SE
Humidity68%
Visibility—
Dew point72°
Fri, 1684° / 77°0.26
84 °
Arús, Friday, 16 October
Light rain. High 84°, low 77°.
Pressure29.88 inHg
Wind8.6 mph SE
Humidity67%
Visibility—
Dew point71°
Sat, 1785° / 76°0.16
85 °
Arús, Saturday, 17 October
Light rain. High 85°, low 76°.
Pressure29.85 inHg
Wind8.3 mph SE
Humidity64%
Visibility—
Dew point70°
Sun, 1885° / 77°0.44
85 °
Arús, Sunday, 18 October
Rain. High 85°, low 77°.
Pressure29.91 inHg
Wind10.9 mph SE
Humidity67%
Visibility—
Dew point72°
Mon, 1985° / 77°0.18
85 °
Arús, Monday, 19 October
Light rain. High 85°, low 77°.
Pressure29.94 inHg
Wind10.9 mph SE
Humidity66%
Visibility—
Dew point71°
Tue, 2086° / 77°0.19
86 °
Arús, Tuesday, 20 October
Light rain. High 86°, low 77°.
Pressure29.94 inHg
Wind10.4 mph SE
Humidity65%
Visibility—
Dew point71°
Wed, 2184° / 76°0.15
84 °
Arús, Wednesday, 21 October
Light rain. High 84°, low 76°.
Pressure29.91 inHg
Wind8.2 mph SE
Humidity70%
Visibility—
Dew point72°
Thu, 2283° / 76°0.3
83 °
Arús, Thursday, 22 October
Rain. High 83°, low 76°.
Pressure29.88 inHg
Wind4.8 mph E
Humidity67%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2384° / 75°0.14
84 °
Arús, Friday, 23 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.14 in
Chance of precipitation67%
Record high89° (1967)
Record low71° (1979)
Sat, 2484° / 75°0.12
84 °
Arús, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.12 in
Chance of precipitation62%
Record high91° (2024)
Record low71° (1984)
Sun, 2584° / 75°0.14
84 °
Arús, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.14 in
Chance of precipitation63%
Record high90° (2024)
Record low70° (2008)
Mon, 2684° / 75°0.17
84 °
Arús, Monday, 26 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.17 in
Chance of precipitation68%
Record high91° (2020)
Record low72° (1981)
Tue, 2784° / 75°0.2
84 °
Arús, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.2 in
Chance of precipitation58%
Record high90° (2024)
Record low71° (1981)
Wed, 2884° / 75°0.16
84 °
Arús, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.16 in
Chance of precipitation58%
Record high90° (2024)
Record low72° (1970)
Thu, 2984° / 75°0.15
84 °
Arús, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.15 in
Chance of precipitation65%
Record high90° (2009)
Record low72° (1970)
Fri, 3084° / 75°0.15
84 °
Arús, Friday, 30 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.15 in
Chance of precipitation70%
Record high89° (2020)
Record low71° (1988)
Sat, 3184° / 75°0.11
84 °
Arús, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.11 in
Chance of precipitation65%
Record high89° (2009)
Record low70° (1963)
Sun, 0184° / 74°0.14
84 °
Arús, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.14 in
Chance of precipitation58%
Record high90° (2020)
Record low70° (1976)
Mon, 0284° / 74°0.13
84 °
Arús, Monday, 2 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.13 in
Chance of precipitation68%
Record high90° (2021)
Record low69° (1961)
Tue, 0384° / 74°0.13
84 °
Arús, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.13 in
Chance of precipitation58%
Record high88° (2009)
Record low71° (1974)
Wed, 0483° / 74°0.13
83 °
Arús, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.13 in
Chance of precipitation55%
Record high89° (2021)
Record low69° (2000)
Thu, 0583° / 74°0.15
83 °
Arús, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.15 in
Chance of precipitation58%
Record high89° (1960)
Record low72° (1964)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Arús, PR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Arús, PR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.