Monthly outlook for Ben Lomond, CA: average high 74.9°, average low 55.9°. That is 3.4° 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 9 August (88.4°), the coolest 21 August (53.1°).
74.9°/55.9°
Average high / low
+3.4°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
75.8°
69.1°
+3.7°
18 August – 27 August
73.4°
68.8°
+2.6°
28 August – 6 September
at normal
70.2°
—
August records over 66 years
99.5°19 August 2020All-time high
50.4°1 August 2011All-time low
Climate normals and records are computed from the nearest reference point — Santa Cruz (7 mi).
Sun, 0988° / 60°0
88 °
Ben Lomond, Sunday, 9 August
Clear. High 88°, low 60°.
Pressure29.85 inHg
Wind4.1 mph SW
Humidity46%
Visibility6.2 mi
Dew point51°
Mon, 1077° / 58°0
77 °
Ben Lomond, Monday, 10 August
Overcast. High 77°, low 58°.
Pressure29.91 inHg
Wind5.3 mph SW
Humidity51%
Visibility6.2 mi
Dew point51°
Tue, 1178° / 56°0
78 °
Ben Lomond, Tuesday, 11 August
Partly cloudy. High 78°, low 56°.
Pressure29.94 inHg
Wind5.5 mph SW
Humidity47%
Visibility6.2 mi
Dew point49°
Wed, 1272° / 56°0
72 °
Ben Lomond, Wednesday, 12 August
Partly cloudy. High 72°, low 56°.
Pressure29.88 inHg
Wind6.7 mph S
Humidity58%
Visibility6.2 mi
Dew point53°
Thu, 1368° / 56°0
68 °
Ben Lomond, Thursday, 13 August
Overcast. High 68°, low 56°.
Pressure29.88 inHg
Wind8.5 mph S
Humidity63%
Visibility—
Dew point54°
Fri, 1470° / 55°0
70 °
Ben Lomond, Friday, 14 August
Clear. High 70°, low 55°.
Pressure29.97 inHg
Wind7.4 mph S
Humidity56%
Visibility—
Dew point52°
Sat, 1573° / 55°0
73 °
Ben Lomond, Saturday, 15 August
Mostly clear. High 73°, low 55°.
Pressure30.03 inHg
Wind5.7 mph SW
Humidity53%
Visibility—
Dew point53°
Sun, 1674° / 55°0
74 °
Ben Lomond, Sunday, 16 August
Partly cloudy. High 74°, low 55°.
Pressure30.06 inHg
Wind7.2 mph W
Humidity49%
Visibility—
Dew point52°
Mon, 1774° / 57°0
74 °
Ben Lomond, Monday, 17 August
Overcast. High 74°, low 57°.
Pressure30.03 inHg
Wind6.3 mph W
Humidity47%
Visibility—
Dew point51°
Tue, 1879° / 58°0
79 °
Ben Lomond, Tuesday, 18 August
Overcast. High 79°, low 58°.
Pressure30.00 inHg
Wind8.6 mph NW
Humidity41%
Visibility—
Dew point51°
Wed, 1979° / 55°0
79 °
Ben Lomond, Wednesday, 19 August
Clear. High 79°, low 55°.
Pressure29.97 inHg
Wind8.8 mph NW
Humidity36%
Visibility—
Dew point47°
Thu, 2069° / 54°0
69 °
Ben Lomond, Thursday, 20 August
Overcast. High 69°, low 54°.
Pressure29.94 inHg
Wind8.6 mph W
Humidity58%
Visibility—
Dew point52°
Fri, 2171° / 53°0
71 °
Ben Lomond, Friday, 21 August
Mostly clear. High 71°, low 53°.
Pressure29.91 inHg
Wind7.2 mph SW
Humidity54%
Visibility—
Dew point52°
Sat, 2270° / 56°0
70 °
Ben Lomond, Saturday, 22 August
Overcast. High 70°, low 56°.
Pressure29.97 inHg
Wind7 mph S
Humidity56%
Visibility—
Dew point52°
Sun, 2372° / 54°0
72 °
Ben Lomond, Sunday, 23 August
Mostly clear. High 72°, low 54°.
Pressure29.94 inHg
Wind5.7 mph SW
Humidity55%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2469° / 58°0
69 °
Ben Lomond, Monday, 24 August
Climate normal for this date — 60-year average.
Average high69°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high82° (2010)
Record low52° (1966)
Tue, 2568° / 57°0
68 °
Ben Lomond, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high68°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high79° (2024)
Record low52° (2024)
Wed, 2669° / 57°0
69 °
Ben Lomond, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high69°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high83° (2024)
Record low53° (2018)
Thu, 2770° / 57°0
70 °
Ben Lomond, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high70°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2023)
Record low52° (1973)
Fri, 2871° / 58°0
71 °
Ben Lomond, Friday, 28 August
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2023)
Record low52° (2020)
Sat, 2970° / 58°0
70 °
Ben Lomond, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2023)
Record low52° (1960)
Sun, 3070° / 58°0
70 °
Ben Lomond, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high93° (2025)
Record low52° (1960)
Mon, 3169° / 57°0
69 °
Ben Lomond, Monday, 31 August
Climate normal for this date — 60-year average.
Average high69°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high96° (2025)
Record low52° (2020)
Tue, 0171° / 58°0
71 °
Ben Lomond, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high96° (2017)
Record low51° (2011)
Wed, 0270° / 58°0
70 °
Ben Lomond, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high100° (2017)
Record low53° (2021)
Thu, 0370° / 58°0
70 °
Ben Lomond, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high91° (2022)
Record low52° (2021)
Fri, 0470° / 58°0
70 °
Ben Lomond, Friday, 4 September
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2022)
Record low53° (1973)
Sat, 0571° / 58°0
71 °
Ben Lomond, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high97° (2022)
Record low51° (1965)
Sun, 0671° / 58°0
71 °
Ben Lomond, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high101° (2020)
Record low52° (2001)
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 Ben Lomond, 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 Ben Lomond, 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.