Monthly outlook for Isabel Josefa, PR: average high 85°, average low 78°. That is 0.3° below the climate normal for October. Precipitation is expected on 14 days (about 2.5 inches), against a normal of 10 days and 2.1 inches. The warmest day looks like 17 October (90.6°), the coolest 17 October (73.4°).
85°/78°
Average high / low
−0.3°
Below normal
14 / 10
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
85.4°
85.8°
-0.2°
26 October – 4 November
84.4°
85.4°
-0.6°
5 November – 14 November
at normal
84.9°
—
October records over 66 years
95.5°12 October 2024All-time high
71.2°4 October 2025All-time low
Climate normals and records are computed from the nearest reference point — Puerto Real (4 mi).
Sat, 1791° / 73°0.06
91 °
Isabel Josefa, Saturday, 17 October
Rain. High 91°, low 73°.
Pressure29.94 inHg
Wind9.8 mph W
Humidity85%
Visibility2.3 mi
Dew point77°
Sun, 1884° / 79°0.13
84 °
Isabel Josefa, Sunday, 18 October
Rain. High 84°, low 79°.
Pressure29.94 inHg
Wind6.3 mph W
Humidity79%
Visibility0.5 mi
Dew point74°
Mon, 1985° / 80°0.06
85 °
Isabel Josefa, Monday, 19 October
Light rain. High 85°, low 80°.
Pressure29.91 inHg
Wind3.4 mph NW
Humidity70%
Visibility6.2 mi
Dew point74°
Tue, 2085° / 79°0.17
85 °
Isabel Josefa, Tuesday, 20 October
Light rain. High 85°, low 79°.
Pressure29.88 inHg
Wind12 mph N
Humidity68%
Visibility—
Dew point73°
Wed, 2186° / 79°0
86 °
Isabel Josefa, Wednesday, 21 October
Mostly clear. High 86°, low 79°.
Pressure29.88 inHg
Wind11.4 mph S
Humidity67%
Visibility—
Dew point72°
Thu, 2283° / 78°0.38
83 °
Isabel Josefa, Thursday, 22 October
Rain. High 83°, low 78°.
Pressure29.91 inHg
Wind16.9 mph SE
Humidity77%
Visibility—
Dew point74°
Fri, 2383° / 78°0.36
83 °
Isabel Josefa, Friday, 23 October
Rain. High 83°, low 78°.
Pressure29.91 inHg
Wind17.6 mph SE
Humidity80%
Visibility—
Dew point75°
Sat, 2483° / 80°0.19
83 °
Isabel Josefa, Saturday, 24 October
Light rain. High 83°, low 80°.
Pressure29.88 inHg
Wind19.6 mph SE
Humidity78%
Visibility—
Dew point75°
Sun, 2585° / 80°0.06
85 °
Isabel Josefa, Sunday, 25 October
Light rain. High 85°, low 80°.
Pressure29.91 inHg
Wind14.2 mph S
Humidity77%
Visibility—
Dew point75°
Mon, 2686° / 78°0.05
86 °
Isabel Josefa, Monday, 26 October
Light rain. High 86°, low 78°.
Pressure29.94 inHg
Wind13.5 mph SE
Humidity70%
Visibility—
Dew point74°
Tue, 2785° / 79°0.74
85 °
Isabel Josefa, Tuesday, 27 October
Rain. High 85°, low 79°.
Pressure29.94 inHg
Wind6.9 mph SE
Humidity70%
Visibility—
Dew point73°
Wed, 2884° / 77°0.04
84 °
Isabel Josefa, Wednesday, 28 October
Light rain. High 84°, low 77°.
Pressure29.97 inHg
Wind10 mph SW
Humidity66%
Visibility—
Dew point70°
Thu, 2984° / 78°0.08
84 °
Isabel Josefa, Thursday, 29 October
Light rain. High 84°, low 78°.
Pressure29.97 inHg
Wind7.9 mph SW
Humidity65%
Visibility—
Dew point70°
Fri, 3084° / 78°0.12
84 °
Isabel Josefa, Friday, 30 October
Light rain. High 84°, low 78°.
Pressure29.97 inHg
Wind7.6 mph SW
Humidity66%
Visibility—
Dew point70°
Sat, 3184° / 77°0
84 °
Isabel Josefa, Saturday, 31 October
Clear. High 84°, low 77°.
Pressure29.94 inHg
Wind6 mph SW
Humidity65%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0185° / 76°0.11
85 °
Isabel Josefa, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation58%
Record high90° (2010)
Record low72° (2024)
Mon, 0285° / 76°0.12
85 °
Isabel Josefa, Monday, 2 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high90° (2025)
Record low71° (2024)
Tue, 0385° / 76°0.13
85 °
Isabel Josefa, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation55%
Record high89° (2009)
Record low71° (2017)
Wed, 0485° / 76°0.12
85 °
Isabel Josefa, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high89° (1982)
Record low70° (2025)
Thu, 0585° / 76°0.13
85 °
Isabel Josefa, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation47%
Record high90° (2025)
Record low71° (2025)
Fri, 0685° / 76°0.12
85 °
Isabel Josefa, Friday, 6 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation53%
Record high90° (2025)
Record low72° (2018)
Sat, 0785° / 76°0.15
85 °
Isabel Josefa, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation53%
Record high90° (1993)
Record low72° (1971)
Sun, 0885° / 76°0.12
85 °
Isabel Josefa, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation63%
Record high90° (1993)
Record low73° (2018)
Mon, 0985° / 76°0.15
85 °
Isabel Josefa, Monday, 9 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation65%
Record high89° (1962)
Record low73° (2021)
Tue, 1085° / 76°0.12
85 °
Isabel Josefa, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation52%
Record high92° (2025)
Record low73° (2018)
Wed, 1185° / 76°0.11
85 °
Isabel Josefa, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation47%
Record high91° (2025)
Record low72° (2000)
Thu, 1285° / 76°0.11
85 °
Isabel Josefa, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation48%
Record high90° (2025)
Record low71° (1981)
Fri, 1385° / 75°0.09
85 °
Isabel Josefa, Friday, 13 November
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.09 in
Chance of precipitation57%
Record high90° (2025)
Record low70° (2025)
Sat, 1485° / 75°0.06
85 °
Isabel Josefa, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.06 in
Chance of precipitation38%
Record high89° (1980)
Record low71° (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 Isabel Josefa, 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 Isabel Josefa, 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.