Monthly outlook for Las Piedras, PR: average high 88.7°, average low 75.4°. That is 2.3° above the climate normal for August. Precipitation is expected on 10 days (about 0.9 inches), against a normal of 13 days and 2.7 inches. The warmest day looks like 10 August (90.8°), the coolest 11 August (73.6°).
88.7°/75.4°
Average high / low
+2.3°
Above normal
10 / 13
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
88.4°
84.5°
+2.2°
18 August – 27 August
89.1°
84.6°
+2.5°
28 August – 6 September
at normal
84.8°
—
August records over 66 years
89.1°14 August 1995All-time high
69.6°31 August 2021All-time low
Sun, 0991° / 77°0.06
91 °
Las Piedras, Sunday, 9 August
Light rain. High 91°, low 77°.
Pressure30.06 inHg
Wind14.3 mph E
Humidity58%
Visibility6.2 mi
Dew point71°
Mon, 1091° / 76°0.01
91 °
Las Piedras, Monday, 10 August
Light rain. High 91°, low 76°.
Pressure30.09 inHg
Wind13.1 mph E
Humidity57%
Visibility6.2 mi
Dew point70°
Tue, 1187° / 74°0.15
87 °
Las Piedras, Tuesday, 11 August
Light rain. High 87°, low 74°.
Pressure30.06 inHg
Wind12.1 mph E
Humidity61%
Visibility6.2 mi
Dew point71°
Wed, 1288° / 75°0.14
88 °
Las Piedras, Wednesday, 12 August
Light rain. High 88°, low 75°.
Pressure30.03 inHg
Wind12.5 mph SE
Humidity61%
Visibility6.2 mi
Dew point72°
Thu, 1387° / 76°0.06
87 °
Las Piedras, Thursday, 13 August
Light rain. High 87°, low 76°.
Pressure30.09 inHg
Wind17 mph E
Humidity58%
Visibility—
Dew point68°
Fri, 1487° / 76°0.06
87 °
Las Piedras, Friday, 14 August
Light rain. High 87°, low 76°.
Pressure30.12 inHg
Wind15.7 mph E
Humidity56%
Visibility—
Dew point67°
Sat, 1587° / 75°0.04
87 °
Las Piedras, Saturday, 15 August
Light rain. High 87°, low 75°.
Pressure30.06 inHg
Wind16.6 mph E
Humidity58%
Visibility—
Dew point69°
Sun, 1688° / 75°0.02
88 °
Las Piedras, Sunday, 16 August
Light rain. High 88°, low 75°.
Pressure30.06 inHg
Wind14 mph E
Humidity55%
Visibility—
Dew point67°
Mon, 1789° / 76°0.08
89 °
Las Piedras, Monday, 17 August
Light rain. High 89°, low 76°.
Pressure30.03 inHg
Wind11.7 mph NE
Humidity61%
Visibility—
Dew point71°
Tue, 1890° / 75°0.08
90 °
Las Piedras, Tuesday, 18 August
Light rain. High 90°, low 75°.
Pressure30.03 inHg
Wind11.6 mph S
Humidity57%
Visibility—
Dew point70°
Wed, 1990° / 76°0.01
90 °
Las Piedras, Wednesday, 19 August
Light rain. High 90°, low 76°.
Pressure30.06 inHg
Wind10.9 mph SE
Humidity59%
Visibility—
Dew point71°
Thu, 2089° / 76°0.01
89 °
Las Piedras, Thursday, 20 August
Light rain. High 89°, low 76°.
Pressure30.06 inHg
Wind10.8 mph SE
Humidity55%
Visibility—
Dew point69°
Fri, 2189° / 74°0
89 °
Las Piedras, Friday, 21 August
Light rain. High 89°, low 74°.
Pressure30.06 inHg
Wind11.3 mph SE
Humidity55%
Visibility—
Dew point68°
Sat, 2289° / 74°0.11
89 °
Las Piedras, Saturday, 22 August
Light rain. High 89°, low 74°.
Pressure30.03 inHg
Wind12 mph E
Humidity61%
Visibility—
Dew point71°
Sun, 2387° / 74°0.02
87 °
Las Piedras, Sunday, 23 August
Light rain. High 87°, low 74°.
Pressure30.06 inHg
Wind13.4 mph SE
Humidity53%
Visibility—
Dew point66°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 75°0.22
84 °
Las Piedras, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.22 in
Chance of precipitation77%
Record high89° (1963)
Record low71° (2018)
Tue, 2585° / 75°0.16
85 °
Las Piedras, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.16 in
Chance of precipitation80%
Record high88° (1967)
Record low70° (2024)
Wed, 2685° / 76°0.15
85 °
Las Piedras, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation78%
Record high88° (2015)
Record low73° (2018)
Thu, 2785° / 76°0.14
85 °
Las Piedras, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.14 in
Chance of precipitation80%
Record high87° (2002)
Record low72° (2022)
Fri, 2885° / 75°0.24
85 °
Las Piedras, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.24 in
Chance of precipitation92%
Record high88° (2010)
Record low71° (2022)
Sat, 2985° / 75°0.14
85 °
Las Piedras, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.14 in
Chance of precipitation75%
Record high88° (2010)
Record low72° (2018)
Sun, 3085° / 76°0.26
85 °
Las Piedras, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.26 in
Chance of precipitation80%
Record high88° (2023)
Record low72° (2018)
Mon, 3185° / 75°0.17
85 °
Las Piedras, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.17 in
Chance of precipitation82%
Record high89° (2004)
Record low70° (2021)
Tue, 0185° / 75°0.16
85 °
Las Piedras, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.16 in
Chance of precipitation77%
Record high88° (2005)
Record low71° (2022)
Wed, 0285° / 75°0.17
85 °
Las Piedras, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.17 in
Chance of precipitation88%
Record high88° (1967)
Record low71° (1986)
Thu, 0385° / 75°0.15
85 °
Las Piedras, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.15 in
Chance of precipitation78%
Record high88° (1981)
Record low72° (2023)
Fri, 0485° / 75°0.16
85 °
Las Piedras, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.16 in
Chance of precipitation77%
Record high89° (1960)
Record low73° (1982)
Sat, 0585° / 75°0.29
85 °
Las Piedras, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.29 in
Chance of precipitation85%
Record high88° (2012)
Record low72° (1961)
Sun, 0685° / 75°0.2
85 °
Las Piedras, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low75°
Average precipitation0.2 in
Chance of precipitation80%
Record high89° (2012)
Record low71° (2024)
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 Las Piedras, 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 Las Piedras, 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.