Monthly outlook for Rafael Arroyo, PR: average high 86.7°, average low 72.6°. That is 1.4° above the climate normal for October. Precipitation is expected on 15 days (about 2.6 inches), against a normal of 12 days and 2.8 inches. The warmest day looks like 18 October (90°), the coolest 22 October (69.8°).
86.7°/72.6°
Average high / low
+1.4°
Above normal
15 / 12
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
87.2°
84.3°
+1.6°
26 October – 4 November
85.7°
83.4°
+1.3°
5 November – 14 November
at normal
82.5°
—
October records over 66 years
93.7°15 October 2024All-time high
64.2°29 October 2021All-time low
Climate normals and records are computed from the nearest reference point — Pajonal (2 mi).
Sat, 1785° / 73°0.19
85 °
Rafael Arroyo, Saturday, 17 October
Rain. High 85°, low 73°.
Pressure29.94 inHg
Wind7.1 mph NE
Humidity65%
Visibility2.3 mi
Dew point73°
Sun, 1890° / 73°0.22
90 °
Rafael Arroyo, Sunday, 18 October
Rain. High 90°, low 73°.
Pressure29.94 inHg
Wind3.8 mph NE
Humidity54%
Visibility4.6 mi
Dew point71°
Mon, 1989° / 71°0.13
89 °
Rafael Arroyo, Monday, 19 October
Light rain. High 89°, low 71°.
Pressure29.91 inHg
Wind5.2 mph NE
Humidity64%
Visibility6.2 mi
Dew point75°
Tue, 2088° / 71°0.29
88 °
Rafael Arroyo, Tuesday, 20 October
Rain. High 88°, low 71°.
Pressure29.91 inHg
Wind2.6 mph NE
Humidity74%
Visibility6.2 mi
Dew point75°
Wed, 2188° / 71°0.14
88 °
Rafael Arroyo, Wednesday, 21 October
Light rain. High 88°, low 71°.
Pressure29.91 inHg
Wind3.6 mph S
Humidity63%
Visibility—
Dew point71°
Thu, 2286° / 70°0.35
86 °
Rafael Arroyo, Thursday, 22 October
Rain. High 86°, low 70°.
Pressure29.94 inHg
Wind5.3 mph S
Humidity66%
Visibility—
Dew point71°
Fri, 2387° / 74°0.07
87 °
Rafael Arroyo, Friday, 23 October
Light rain. High 87°, low 74°.
Pressure29.94 inHg
Wind6.9 mph NE
Humidity56%
Visibility—
Dew point67°
Sat, 2486° / 74°0.06
86 °
Rafael Arroyo, Saturday, 24 October
Light rain. High 86°, low 74°.
Pressure29.97 inHg
Wind4.7 mph S
Humidity62%
Visibility—
Dew point70°
Sun, 2585° / 74°0.11
85 °
Rafael Arroyo, Sunday, 25 October
Light rain. High 85°, low 74°.
Pressure29.97 inHg
Wind5.5 mph SW
Humidity67%
Visibility—
Dew point71°
Mon, 2687° / 73°0.27
87 °
Rafael Arroyo, Monday, 26 October
Rain. High 87°, low 73°.
Pressure29.97 inHg
Wind5 mph S
Humidity60%
Visibility—
Dew point70°
Tue, 2788° / 73°0.08
88 °
Rafael Arroyo, Tuesday, 27 October
Light rain. High 88°, low 73°.
Pressure30.00 inHg
Wind7.6 mph NE
Humidity56%
Visibility—
Dew point67°
Wed, 2885° / 73°0.08
85 °
Rafael Arroyo, Wednesday, 28 October
Light rain. High 85°, low 73°.
Pressure29.97 inHg
Wind6.6 mph NE
Humidity63%
Visibility—
Dew point70°
Thu, 2985° / 72°0.13
85 °
Rafael Arroyo, Thursday, 29 October
Light rain. High 85°, low 72°.
Pressure29.91 inHg
Wind5.9 mph NE
Humidity62%
Visibility—
Dew point69°
Fri, 3085° / 73°0.38
85 °
Rafael Arroyo, Friday, 30 October
Rain. High 85°, low 73°.
Pressure29.91 inHg
Wind4.9 mph N
Humidity62%
Visibility—
Dew point69°
Sat, 3184° / 72°0.13
84 °
Rafael Arroyo, Saturday, 31 October
Light rain. High 84°, low 72°.
Pressure29.91 inHg
Wind4.7 mph N
Humidity62%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0183° / 72°0.18
83 °
Rafael Arroyo, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.18 in
Chance of precipitation70%
Record high90° (2023)
Record low68° (1967)
Mon, 0283° / 72°0.15
83 °
Rafael Arroyo, Monday, 2 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.15 in
Chance of precipitation67%
Record high91° (2025)
Record low67° (1961)
Tue, 0383° / 72°0.14
83 °
Rafael Arroyo, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.14 in
Chance of precipitation70%
Record high89° (1960)
Record low67° (1974)
Wed, 0483° / 72°0.15
83 °
Rafael Arroyo, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.15 in
Chance of precipitation72%
Record high88° (2021)
Record low69° (1974)
Thu, 0583° / 72°0.18
83 °
Rafael Arroyo, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.18 in
Chance of precipitation58%
Record high89° (2021)
Record low69° (1994)
Fri, 0683° / 72°0.2
83 °
Rafael Arroyo, Friday, 6 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.2 in
Chance of precipitation62%
Record high90° (2021)
Record low68° (2000)
Sat, 0783° / 72°0.19
83 °
Rafael Arroyo, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.19 in
Chance of precipitation60%
Record high90° (2025)
Record low67° (2018)
Sun, 0883° / 72°0.2
83 °
Rafael Arroyo, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.2 in
Chance of precipitation67%
Record high91° (2025)
Record low65° (2021)
Mon, 0982° / 72°0.18
82 °
Rafael Arroyo, Monday, 9 November
Climate normal for this date — 60-year average.
Average high82°
Average low72°
Average precipitation0.18 in
Chance of precipitation73%
Record high88° (2019)
Record low68° (1966)
Tue, 1082° / 71°0.16
82 °
Rafael Arroyo, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.16 in
Chance of precipitation68%
Record high92° (2025)
Record low67° (2000)
Wed, 1182° / 71°0.16
82 °
Rafael Arroyo, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.16 in
Chance of precipitation60%
Record high89° (2025)
Record low67° (2000)
Thu, 1282° / 71°0.18
82 °
Rafael Arroyo, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.18 in
Chance of precipitation70%
Record high88° (2023)
Record low66° (1981)
Fri, 1382° / 71°0.13
82 °
Rafael Arroyo, Friday, 13 November
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.13 in
Chance of precipitation60%
Record high88° (2024)
Record low67° (1984)
Sat, 1482° / 71°0.14
82 °
Rafael Arroyo, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.14 in
Chance of precipitation60%
Record high88° (2023)
Record low67° (1966)
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 Rafael Arroyo, 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 Rafael Arroyo, 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.