Monthly outlook for Lake Nacimiento, CA: average high 88.2°, average low 57.2°. That is 2.1° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.0 inches. The warmest day looks like 9 August (95.7°), the coolest 14 August (52.4°).
88.2°/57.2°
Average high / low
+2.1°
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
86.7°
85.2°
+0.8°
19 August – 28 August
90.7°
84.2°
+3.6°
29 August – 7 September
at normal
85.5°
—
August records over 66 years
110.3°18 August 2020All-time high
52.3°16 August 1976All-time low
Mon, 1089° / 61°0
89 °
Lake Nacimiento, Monday, 10 August
Clear. High 89°, low 61°.
Pressure29.85 inHg
Wind7.2 mph SW
Humidity18%
Visibility6.2 mi
Dew point44°
Tue, 1192° / 66°0
92 °
Lake Nacimiento, Tuesday, 11 August
Clear. High 92°, low 66°.
Pressure29.91 inHg
Wind9.5 mph SW
Humidity18%
Visibility6.2 mi
Dew point43°
Wed, 1288° / 56°0
88 °
Lake Nacimiento, Wednesday, 12 August
Clear. High 88°, low 56°.
Pressure29.85 inHg
Wind8.5 mph SW
Humidity21%
Visibility6.2 mi
Dew point42°
Thu, 1380° / 53°0
80 °
Lake Nacimiento, Thursday, 13 August
Clear. High 80°, low 53°.
Pressure29.85 inHg
Wind10.2 mph SW
Humidity33%
Visibility—
Dew point46°
Fri, 1483° / 52°0
83 °
Lake Nacimiento, Friday, 14 August
Clear. High 83°, low 52°.
Pressure29.91 inHg
Wind10.4 mph SW
Humidity28%
Visibility—
Dew point44°
Sat, 1580° / 54°0
80 °
Lake Nacimiento, Saturday, 15 August
Overcast. High 80°, low 54°.
Pressure30.00 inHg
Wind7.5 mph S
Humidity32%
Visibility—
Dew point44°
Sun, 1684° / 57°0
84 °
Lake Nacimiento, Sunday, 16 August
Partly cloudy. High 84°, low 57°.
Pressure30.06 inHg
Wind11.3 mph SW
Humidity29%
Visibility—
Dew point46°
Mon, 1785° / 54°0
85 °
Lake Nacimiento, Monday, 17 August
Clear. High 85°, low 54°.
Pressure30.03 inHg
Wind11.1 mph SW
Humidity19%
Visibility—
Dew point36°
Tue, 1890° / 53°0
90 °
Lake Nacimiento, Tuesday, 18 August
Overcast. High 90°, low 53°.
Pressure29.94 inHg
Wind6.5 mph NW
Humidity16%
Visibility—
Dew point34°
Wed, 1994° / 59°0
94 °
Lake Nacimiento, Wednesday, 19 August
Clear. High 94°, low 59°.
Pressure29.88 inHg
Wind7.5 mph SW
Humidity21%
Visibility—
Dew point44°
Thu, 2092° / 60°0
92 °
Lake Nacimiento, Thursday, 20 August
Clear. High 92°, low 60°.
Pressure29.88 inHg
Wind10.5 mph SW
Humidity26%
Visibility—
Dew point49°
Fri, 2190° / 60°0
90 °
Lake Nacimiento, Friday, 21 August
Clear. High 90°, low 60°.
Pressure29.88 inHg
Wind10 mph SW
Humidity25%
Visibility—
Dew point46°
Sat, 2290° / 57°0
90 °
Lake Nacimiento, Saturday, 22 August
Clear. High 90°, low 57°.
Pressure29.88 inHg
Wind9.6 mph SW
Humidity24%
Visibility—
Dew point46°
Sun, 2390° / 57°0
90 °
Lake Nacimiento, Sunday, 23 August
Mostly clear. High 90°, low 57°.
Pressure29.88 inHg
Wind8.7 mph SW
Humidity20%
Visibility—
Dew point41°
Mon, 2488° / 55°0
88 °
Lake Nacimiento, Monday, 24 August
Clear. High 88°, low 55°.
Pressure29.83 inHg
Wind10.8 mph SW
Humidity21%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 61°0
84 °
Lake Nacimiento, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low61°
Average precipitation0 in
Chance of precipitation0%
Record high100° (2019)
Record low55° (1983)
Wed, 2685° / 61°0
85 °
Lake Nacimiento, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low61°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2019)
Record low54° (1973)
Thu, 2786° / 61°0
86 °
Lake Nacimiento, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low61°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2017)
Record low53° (2018)
Fri, 2887° / 62°0
87 °
Lake Nacimiento, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low62°
Average precipitation0 in
Chance of precipitation0%
Record high103° (2017)
Record low54° (2010)
Sat, 2987° / 62°0
87 °
Lake Nacimiento, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low62°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2017)
Record low53° (2018)
Sun, 3086° / 62°0
86 °
Lake Nacimiento, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low62°
Average precipitation0 in
Chance of precipitation2%
Record high103° (2021)
Record low53° (1966)
Mon, 3185° / 62°0
85 °
Lake Nacimiento, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low62°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2022)
Record low55° (1999)
Tue, 0186° / 61°0
86 °
Lake Nacimiento, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low61°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2022)
Record low49° (1964)
Wed, 0285° / 62°0
85 °
Lake Nacimiento, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low62°
Average precipitation0 in
Chance of precipitation3%
Record high110° (2022)
Record low51° (1964)
Thu, 0385° / 62°0
85 °
Lake Nacimiento, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low62°
Average precipitation0 in
Chance of precipitation0%
Record high109° (2022)
Record low52° (2021)
Fri, 0485° / 62°0.02
85 °
Lake Nacimiento, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low62°
Average precipitation0.02 in
Chance of precipitation2%
Record high105° (2022)
Record low54° (1960)
Sat, 0586° / 62°0.01
86 °
Lake Nacimiento, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low62°
Average precipitation0.01 in
Chance of precipitation5%
Record high110° (2022)
Record low51° (2000)
Sun, 0686° / 61°0
86 °
Lake Nacimiento, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low61°
Average precipitation0 in
Chance of precipitation2%
Record high112° (2020)
Record low53° (2000)
Mon, 0785° / 62°0
85 °
Lake Nacimiento, Monday, 7 September
Climate normal for this date — 60-year average.
Average high85°
Average low62°
Average precipitation0 in
Chance of precipitation0%
Record high112° (2020)
Record low52° (1978)
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 Lake Nacimiento, 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 Lake Nacimiento, 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.