Monthly outlook for Los Llanos, PR: average high 87.7°, average low 75.8°. That is 0.5° above the climate normal for August. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 8 days and 1.8 inches. The warmest day looks like 10 August (90.9°), the coolest 17 August (73.9°).
87.7°/75.8°
Average high / low
+0.5°
Above normal
6 / 8
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
88.8°
86.9°
+1.1°
19 August – 28 August
85.9°
86.5°
-0.3°
29 August – 7 September
at normal
86.3°
—
August records over 66 years
96.3°9 August 2022All-time high
71.1°22 August 1976All-time low
Climate normals and records are computed from the nearest reference point — Las Ollas (3 mi).
Mon, 1091° / 76°0
91 °
Los Llanos, Monday, 10 August
Partly cloudy. High 91°, low 76°.
Pressure30.06 inHg
Wind15.7 mph SE
Humidity50%
Visibility6.2 mi
Dew point68°
Tue, 1187° / 75°0.05
87 °
Los Llanos, Tuesday, 11 August
Light rain. High 87°, low 75°.
Pressure30.03 inHg
Wind16.7 mph SE
Humidity58%
Visibility6.2 mi
Dew point70°
Wed, 1287° / 76°0
87 °
Los Llanos, Wednesday, 12 August
Overcast. High 87°, low 76°.
Pressure30.03 inHg
Wind16.8 mph SE
Humidity60%
Visibility6.2 mi
Dew point71°
Thu, 1387° / 77°0
87 °
Los Llanos, Thursday, 13 August
Overcast. High 87°, low 77°.
Pressure30.06 inHg
Wind19.8 mph SE
Humidity57%
Visibility—
Dew point68°
Fri, 1490° / 75°0.01
90 °
Los Llanos, Friday, 14 August
Light rain. High 90°, low 75°.
Pressure30.12 inHg
Wind20.7 mph E
Humidity50%
Visibility—
Dew point66°
Sat, 1590° / 75°0
90 °
Los Llanos, Saturday, 15 August
Mostly clear. High 90°, low 75°.
Pressure30.06 inHg
Wind19.6 mph E
Humidity59%
Visibility—
Dew point70°
Sun, 1691° / 74°0
91 °
Los Llanos, Sunday, 16 August
Partly cloudy. High 91°, low 74°.
Pressure30.03 inHg
Wind17.1 mph SE
Humidity55%
Visibility—
Dew point68°
Mon, 1791° / 74°0
91 °
Los Llanos, Monday, 17 August
Overcast. High 91°, low 74°.
Pressure29.97 inHg
Wind13.1 mph SE
Humidity49%
Visibility—
Dew point65°
Tue, 1887° / 76°0.29
87 °
Los Llanos, Tuesday, 18 August
Rain. High 87°, low 76°.
Pressure29.97 inHg
Wind11.6 mph SE
Humidity61%
Visibility—
Dew point71°
Wed, 1987° / 78°0.3
87 °
Los Llanos, Wednesday, 19 August
Rain. High 87°, low 78°.
Pressure30.06 inHg
Wind12.1 mph SE
Humidity63%
Visibility—
Dew point71°
Thu, 2084° / 76°0.65
84 °
Los Llanos, Thursday, 20 August
Rain. High 84°, low 76°.
Pressure30.00 inHg
Wind12 mph SE
Humidity70%
Visibility—
Dew point72°
Fri, 2187° / 75°0.08
87 °
Los Llanos, Friday, 21 August
Light rain. High 87°, low 75°.
Pressure30.00 inHg
Wind14.7 mph SE
Humidity58%
Visibility—
Dew point68°
Sat, 2286° / 76°0.03
86 °
Los Llanos, Saturday, 22 August
Light rain. High 86°, low 76°.
Pressure30.00 inHg
Wind15.3 mph SE
Humidity52%
Visibility—
Dew point65°
Sun, 2385° / 75°0.04
85 °
Los Llanos, Sunday, 23 August
Light rain. High 85°, low 75°.
Pressure30.03 inHg
Wind16.6 mph SE
Humidity66%
Visibility—
Dew point70°
Mon, 2487° / 76°0
87 °
Los Llanos, Monday, 24 August
Overcast. High 87°, low 76°.
Pressure30.06 inHg
Wind15.5 mph SE
Humidity52%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2586° / 76°0.11
86 °
Los Llanos, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.11 in
Chance of precipitation45%
Record high92° (1966)
Record low72° (1969)
Wed, 2686° / 76°0.1
86 °
Los Llanos, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.1 in
Chance of precipitation63%
Record high91° (1990)
Record low73° (1972)
Thu, 2787° / 76°0.09
87 °
Los Llanos, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.09 in
Chance of precipitation55%
Record high93° (2021)
Record low74° (1996)
Fri, 2886° / 76°0.13
86 °
Los Llanos, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.13 in
Chance of precipitation57%
Record high96° (2021)
Record low73° (1983)
Sat, 2986° / 76°0.07
86 °
Los Llanos, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.07 in
Chance of precipitation53%
Record high94° (2021)
Record low74° (1971)
Sun, 3086° / 76°0.18
86 °
Los Llanos, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.18 in
Chance of precipitation55%
Record high91° (1994)
Record low74° (2021)
Mon, 3186° / 76°0.14
86 °
Los Llanos, Monday, 31 August
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.14 in
Chance of precipitation48%
Record high91° (1996)
Record low74° (2025)
Tue, 0187° / 76°0.09
87 °
Los Llanos, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.09 in
Chance of precipitation57%
Record high91° (2018)
Record low73° (1986)
Wed, 0286° / 76°0.1
86 °
Los Llanos, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.1 in
Chance of precipitation62%
Record high90° (2009)
Record low73° (1986)
Thu, 0386° / 76°0.1
86 °
Los Llanos, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.1 in
Chance of precipitation55%
Record high93° (2021)
Record low73° (1965)
Fri, 0486° / 76°0.1
86 °
Los Llanos, Friday, 4 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.1 in
Chance of precipitation50%
Record high93° (2021)
Record low72° (1964)
Sat, 0586° / 76°0.23
86 °
Los Llanos, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.23 in
Chance of precipitation58%
Record high96° (2021)
Record low72° (1961)
Sun, 0686° / 76°0.12
86 °
Los Llanos, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high96° (2021)
Record low71° (1961)
Mon, 0786° / 76°0.17
86 °
Los Llanos, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.17 in
Chance of precipitation58%
Record high94° (2021)
Record low72° (1973)
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 Los Llanos, 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 Los Llanos, 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.