Monthly outlook for Pleasanton, CA: average high 93.4°, average low 63°. That is 5° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 23 August (107.1°), the coolest 14 August (56.2°).
93.4°/63°
Average high / low
+5°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
88.7°
85.1°
+2°
19 August – 28 August
101.1°
83.9°
+9.5°
29 August – 7 September
at normal
85.2°
—
August records over 66 years
105.6°16 August 2020All-time high
49.6°6 August 2002All-time low
Climate normals and records are computed from the nearest reference point — Livermore (7 mi).
Mon, 1085° / 61°0
85 °
Pleasanton, Monday, 10 August
Overcast. High 85°, low 61°.
Pressure29.85 inHg
Wind7.9 mph SW
Humidity20%
Visibility6.2 mi
Dew point44°
Tue, 1194° / 62°0
94 °
Pleasanton, Tuesday, 11 August
Clear. High 94°, low 62°.
Pressure29.91 inHg
Wind7.4 mph SW
Humidity18%
Visibility6.2 mi
Dew point42°
Wed, 1291° / 60°0
91 °
Pleasanton, Wednesday, 12 August
Clear. High 91°, low 60°.
Pressure29.83 inHg
Wind8.3 mph SW
Humidity25%
Visibility6.2 mi
Dew point46°
Thu, 1386° / 57°0
86 °
Pleasanton, Thursday, 13 August
Partly cloudy. High 86°, low 57°.
Pressure29.80 inHg
Wind10.9 mph W
Humidity28%
Visibility—
Dew point46°
Fri, 1485° / 56°0
85 °
Pleasanton, Friday, 14 August
Clear. High 85°, low 56°.
Pressure29.88 inHg
Wind9.5 mph W
Humidity28%
Visibility—
Dew point46°
Sat, 1585° / 57°0
85 °
Pleasanton, Saturday, 15 August
Clear. High 85°, low 57°.
Pressure29.97 inHg
Wind8.7 mph SW
Humidity27%
Visibility—
Dew point45°
Sun, 1686° / 60°0
86 °
Pleasanton, Sunday, 16 August
Overcast. High 86°, low 60°.
Pressure30.09 inHg
Wind5.1 mph NW
Humidity40%
Visibility—
Dew point48°
Mon, 1792° / 62°0
92 °
Pleasanton, Monday, 17 August
Overcast. High 92°, low 62°.
Pressure30.03 inHg
Wind9.3 mph W
Humidity24%
Visibility—
Dew point47°
Tue, 1893° / 62°0
93 °
Pleasanton, Tuesday, 18 August
Clear. High 93°, low 62°.
Pressure30.00 inHg
Wind9.7 mph SW
Humidity22%
Visibility—
Dew point46°
Wed, 1994° / 64°0.01
94 °
Pleasanton, Wednesday, 19 August
Light rain. High 94°, low 64°.
Pressure29.94 inHg
Wind9.3 mph SW
Humidity18%
Visibility—
Dew point42°
Thu, 2097° / 64°0
97 °
Pleasanton, Thursday, 20 August
Overcast. High 97°, low 64°.
Pressure29.88 inHg
Wind8.3 mph SW
Humidity18%
Visibility—
Dew point43°
Fri, 21104° / 67°0
104 °
Pleasanton, Friday, 21 August
Clear. High 104°, low 67°.
Pressure29.80 inHg
Wind8.9 mph SW
Humidity14%
Visibility—
Dew point42°
Sat, 22105° / 72°0
105 °
Pleasanton, Saturday, 22 August
Clear. High 105°, low 72°.
Pressure29.85 inHg
Wind9.2 mph SW
Humidity13%
Visibility—
Dew point41°
Sun, 23107° / 73°0
107 °
Pleasanton, Sunday, 23 August
Overcast. High 107°, low 73°.
Pressure29.88 inHg
Wind9 mph SW
Humidity12%
Visibility—
Dew point41°
Mon, 24100° / 71°0
100 °
Pleasanton, Monday, 24 August
Clear. High 100°, low 71°.
Pressure29.88 inHg
Wind10 mph SW
Humidity15%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 58°0
84 °
Pleasanton, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2010)
Record low51° (1963)
Wed, 2684° / 57°0
84 °
Pleasanton, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2017)
Record low51° (1976)
Thu, 2786° / 58°0
86 °
Pleasanton, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high103° (2017)
Record low51° (1960)
Fri, 2886° / 58°0
86 °
Pleasanton, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high101° (2021)
Record low50° (1995)
Sat, 2984° / 58°0
84 °
Pleasanton, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2008)
Record low50° (1975)
Sun, 3084° / 58°0
84 °
Pleasanton, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high100° (2025)
Record low51° (2010)
Mon, 3185° / 58°0
85 °
Pleasanton, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2025)
Record low51° (1975)
Tue, 0186° / 58°0
86 °
Pleasanton, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high105° (2017)
Record low50° (1999)
Wed, 0285° / 59°0
85 °
Pleasanton, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2017)
Record low50° (1960)
Thu, 0385° / 58°0
85 °
Pleasanton, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high100° (2017)
Record low50° (2000)
Fri, 0485° / 58°0
85 °
Pleasanton, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2022)
Record low48° (2000)
Sat, 0586° / 58°0
86 °
Pleasanton, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high111° (2022)
Record low51° (1996)
Sun, 0686° / 59°0
86 °
Pleasanton, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high112° (2022)
Record low51° (1973)
Mon, 0786° / 59°0
86 °
Pleasanton, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high109° (2020)
Record low50° (1964)
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 Pleasanton, CA 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 Pleasanton, CA 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.