Monthly outlook for San Agustín, PR: average high 85.5°, average low 75.4°. That is 0.1° above the climate normal for October. Precipitation is expected on 13 days (about 2.3 inches), against a normal of 10 days and 2.2 inches. The warmest day looks like 17 October (87.5°), the coolest 17 October (73.3°).
85.5°/75.4°
Average high / low
+0.1°
Above normal
13 / 10
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
85.9°
85.4°
+0.3°
27 October – 5 November
84.8°
85°
-0.1°
6 November – 15 November
at normal
84.5°
—
October records over 66 years
92.7°8 October 2006All-time high
66.7°2 October 2025All-time low
Climate normals and records are computed from the nearest reference point — Sabana Grande (8 mi).
Sun, 1887° / 75°0.26
87 °
San Agustín, Sunday, 18 October
Rain. High 87°, low 75°.
Pressure29.94 inHg
Wind6.2 mph W
Humidity79%
Visibility6.2 mi
Dew point76°
Mon, 1984° / 75°0.11
84 °
San Agustín, Monday, 19 October
Rain. High 84°, low 75°.
Pressure29.91 inHg
Wind5.9 mph W
Humidity73%
Visibility3.4 mi
Dew point75°
Tue, 2086° / 75°0.13
86 °
San Agustín, Tuesday, 20 October
Light rain. High 86°, low 75°.
Pressure29.88 inHg
Wind4.7 mph S
Humidity67%
Visibility6.2 mi
Dew point74°
Wed, 2186° / 76°0.02
86 °
San Agustín, Wednesday, 21 October
Light rain. High 86°, low 76°.
Pressure29.91 inHg
Wind9.1 mph S
Humidity64%
Visibility—
Dew point71°
Thu, 2286° / 76°0.23
86 °
San Agustín, Thursday, 22 October
Rain. High 86°, low 76°.
Pressure29.94 inHg
Wind7.5 mph SE
Humidity68%
Visibility—
Dew point73°
Fri, 2387° / 77°0.22
87 °
San Agustín, Friday, 23 October
Light rain. High 87°, low 77°.
Pressure29.91 inHg
Wind15.8 mph SE
Humidity74%
Visibility—
Dew point74°
Sat, 2485° / 78°0.12
85 °
San Agustín, Saturday, 24 October
Light rain. High 85°, low 78°.
Pressure29.88 inHg
Wind17.4 mph SE
Humidity71%
Visibility—
Dew point74°
Sun, 2585° / 77°0.08
85 °
San Agustín, Sunday, 25 October
Light rain. High 85°, low 77°.
Pressure29.94 inHg
Wind14.1 mph SE
Humidity70%
Visibility—
Dew point73°
Mon, 2686° / 76°0.12
86 °
San Agustín, Monday, 26 October
Light rain. High 86°, low 76°.
Pressure30.00 inHg
Wind4.7 mph E
Humidity61%
Visibility—
Dew point70°
Tue, 2787° / 76°0.09
87 °
San Agustín, Tuesday, 27 October
Light rain. High 87°, low 76°.
Pressure30.00 inHg
Wind4.9 mph NE
Humidity57%
Visibility—
Dew point69°
Wed, 2886° / 75°0.02
86 °
San Agustín, Wednesday, 28 October
Light rain. High 86°, low 75°.
Pressure29.97 inHg
Wind5.7 mph NE
Humidity55%
Visibility—
Dew point67°
Thu, 2986° / 74°0
86 °
San Agustín, Thursday, 29 October
Clear. High 86°, low 74°.
Pressure29.94 inHg
Wind6.5 mph E
Humidity58%
Visibility—
Dew point67°
Fri, 3084° / 74°0.07
84 °
San Agustín, Friday, 30 October
Light rain. High 84°, low 74°.
Pressure29.88 inHg
Wind6.6 mph SW
Humidity62%
Visibility—
Dew point68°
Sat, 3183° / 75°0.35
83 °
San Agustín, Saturday, 31 October
Rain. High 83°, low 75°.
Pressure29.88 inHg
Wind5.7 mph S
Humidity68%
Visibility—
Dew point71°
Sun, 0182° / 75°0.41
82 °
San Agustín, Sunday, 1 November
Rain. High 82°, low 75°.
Pressure29.91 inHg
Wind6 mph NE
Humidity72%
Visibility—
Dew point71°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0285° / 74°0.13
85 °
San Agustín, Monday, 2 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.13 in
Chance of precipitation50%
Record high91° (1982)
Record low70° (2021)
Tue, 0385° / 74°0.14
85 °
San Agustín, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.14 in
Chance of precipitation55%
Record high90° (1982)
Record low68° (2017)
Wed, 0485° / 74°0.12
85 °
San Agustín, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.12 in
Chance of precipitation52%
Record high89° (1982)
Record low66° (2025)
Thu, 0585° / 74°0.13
85 °
San Agustín, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.13 in
Chance of precipitation47%
Record high89° (1960)
Record low66° (2025)
Fri, 0685° / 74°0.13
85 °
San Agustín, Friday, 6 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.13 in
Chance of precipitation55%
Record high89° (2009)
Record low70° (2000)
Sat, 0785° / 74°0.17
85 °
San Agustín, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.17 in
Chance of precipitation53%
Record high90° (1993)
Record low69° (2025)
Sun, 0885° / 74°0.11
85 °
San Agustín, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.11 in
Chance of precipitation65%
Record high90° (1993)
Record low71° (2018)
Mon, 0985° / 74°0.16
85 °
San Agustín, Monday, 9 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.16 in
Chance of precipitation62%
Record high89° (1980)
Record low72° (1996)
Tue, 1084° / 74°0.12
84 °
San Agustín, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.12 in
Chance of precipitation52%
Record high90° (1980)
Record low71° (2018)
Wed, 1184° / 74°0.11
84 °
San Agustín, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.11 in
Chance of precipitation45%
Record high90° (1980)
Record low69° (2000)
Thu, 1284° / 74°0.11
84 °
San Agustín, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.11 in
Chance of precipitation45%
Record high89° (1993)
Record low68° (1981)
Fri, 1385° / 74°0.09
85 °
San Agustín, Friday, 13 November
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.09 in
Chance of precipitation55%
Record high89° (1980)
Record low69° (1984)
Sat, 1484° / 74°0.06
84 °
San Agustín, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.06 in
Chance of precipitation37%
Record high89° (1980)
Record low70° (2020)
Sun, 1584° / 74°0.08
84 °
San Agustín, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.08 in
Chance of precipitation43%
Record high89° (2015)
Record low68° (2020)
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 San Agustín, 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 San Agustín, 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.