Monthly outlook for Lake Isabella, CA: average high 92.8°, average low 66.5°. That is 0.7° below the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 9 August (101.9°), the coolest 18 August (61.9°).
92.8°/66.5°
Average high / low
−0.7°
Below normal
1 / 1
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
92.5°
94.9°
-1.4°
19 August – 28 August
93.3°
93.1°
+0.1°
29 August – 7 September
at normal
93°
—
August records over 66 years
108.5°17 August 2020All-time high
51.4°30 August 2010All-time low
Climate normals and records are computed from the nearest reference point — Mountain Mesa (4 mi).
Mon, 10101° / 74°0
101 °
Lake Isabella, Monday, 10 August
Overcast. High 101°, low 74°.
Pressure29.88 inHg
Wind8.3 mph SW
Humidity13%
Visibility6.2 mi
Dew point39°
Tue, 11100° / 73°0
100 °
Lake Isabella, Tuesday, 11 August
Overcast. High 100°, low 73°.
Pressure29.91 inHg
Wind6.9 mph SW
Humidity14%
Visibility6.2 mi
Dew point38°
Wed, 1295° / 71°0
95 °
Lake Isabella, Wednesday, 12 August
Overcast. High 95°, low 71°.
Pressure29.83 inHg
Wind9.1 mph W
Humidity18%
Visibility6.2 mi
Dew point42°
Thu, 1393° / 67°0
93 °
Lake Isabella, Thursday, 13 August
Clear. High 93°, low 67°.
Pressure29.83 inHg
Wind12.1 mph W
Humidity18%
Visibility—
Dew point39°
Fri, 1494° / 64°0
94 °
Lake Isabella, Friday, 14 August
Overcast. High 94°, low 64°.
Pressure29.91 inHg
Wind9.9 mph SW
Humidity17%
Visibility—
Dew point35°
Sat, 1573° / 65°0.06
73 °
Lake Isabella, Saturday, 15 August
Light rain. High 73°, low 65°.
Pressure30.12 inHg
Wind6.6 mph NE
Humidity66%
Visibility—
Dew point54°
Sun, 1689° / 66°0
89 °
Lake Isabella, Sunday, 16 August
Overcast. High 89°, low 66°.
Pressure30.06 inHg
Wind11.3 mph W
Humidity40%
Visibility—
Dew point54°
Mon, 1789° / 63°0
89 °
Lake Isabella, Monday, 17 August
Mostly clear. High 89°, low 63°.
Pressure30.03 inHg
Wind11.7 mph W
Humidity25%
Visibility—
Dew point44°
Tue, 1889° / 62°0
89 °
Lake Isabella, Tuesday, 18 August
Overcast. High 89°, low 62°.
Pressure29.97 inHg
Wind9.5 mph W
Humidity23%
Visibility—
Dew point40°
Wed, 1991° / 63°0
91 °
Lake Isabella, Wednesday, 19 August
Overcast. High 91°, low 63°.
Pressure29.94 inHg
Wind9.5 mph SW
Humidity22%
Visibility—
Dew point40°
Thu, 2093° / 65°0
93 °
Lake Isabella, Thursday, 20 August
Clear. High 93°, low 65°.
Pressure29.94 inHg
Wind10 mph SW
Humidity21%
Visibility—
Dew point41°
Fri, 2192° / 64°0
92 °
Lake Isabella, Friday, 21 August
Partly cloudy. High 92°, low 64°.
Pressure29.94 inHg
Wind9.9 mph SW
Humidity22%
Visibility—
Dew point42°
Sat, 2293° / 65°0
93 °
Lake Isabella, Saturday, 22 August
Clear. High 93°, low 65°.
Pressure29.94 inHg
Wind10.2 mph W
Humidity17%
Visibility—
Dew point36°
Sun, 2394° / 65°0
94 °
Lake Isabella, Sunday, 23 August
Clear. High 94°, low 65°.
Pressure29.91 inHg
Wind10.2 mph SW
Humidity18%
Visibility—
Dew point38°
Mon, 2496° / 66°0
96 °
Lake Isabella, Monday, 24 August
Clear. High 96°, low 66°.
Pressure29.88 inHg
Wind10.2 mph SW
Humidity17%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2593° / 70°0.02
93 °
Lake Isabella, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high93°
Average low70°
Average precipitation0.02 in
Chance of precipitation8%
Record high105° (2010)
Record low54° (2024)
Wed, 2693° / 69°0.01
93 °
Lake Isabella, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high93°
Average low69°
Average precipitation0.01 in
Chance of precipitation5%
Record high103° (2017)
Record low55° (1978)
Thu, 2794° / 69°0.02
94 °
Lake Isabella, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high94°
Average low69°
Average precipitation0.02 in
Chance of precipitation12%
Record high104° (2019)
Record low52° (1973)
Fri, 2895° / 70°0
95 °
Lake Isabella, Friday, 28 August
Climate normal for this date — 60-year average.
Average high95°
Average low70°
Average precipitation0 in
Chance of precipitation7%
Record high105° (2017)
Record low57° (1991)
Sat, 2994° / 71°0.02
94 °
Lake Isabella, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high94°
Average low71°
Average precipitation0.02 in
Chance of precipitation3%
Record high103° (1998)
Record low53° (2010)
Sun, 3094° / 70°0
94 °
Lake Isabella, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high94°
Average low70°
Average precipitation0 in
Chance of precipitation3%
Record high104° (2022)
Record low51° (2010)
Mon, 3193° / 69°0
93 °
Lake Isabella, Monday, 31 August
Climate normal for this date — 60-year average.
Average high93°
Average low69°
Average precipitation0 in
Chance of precipitation7%
Record high103° (2022)
Record low54° (1966)
Tue, 0193° / 69°0.01
93 °
Lake Isabella, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high93°
Average low69°
Average precipitation0.01 in
Chance of precipitation5%
Record high105° (2022)
Record low51° (1964)
Wed, 0294° / 70°0.03
94 °
Lake Isabella, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high94°
Average low70°
Average precipitation0.03 in
Chance of precipitation12%
Record high107° (2022)
Record low52° (1964)
Thu, 0392° / 70°0.02
92 °
Lake Isabella, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high92°
Average low70°
Average precipitation0.02 in
Chance of precipitation15%
Record high107° (2022)
Record low53° (2000)
Fri, 0492° / 69°0.02
92 °
Lake Isabella, Friday, 4 September
Climate normal for this date — 60-year average.
Average high92°
Average low69°
Average precipitation0.02 in
Chance of precipitation17%
Record high107° (2020)
Record low53° (1992)
Sat, 0592° / 69°0.03
92 °
Lake Isabella, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high92°
Average low69°
Average precipitation0.03 in
Chance of precipitation13%
Record high106° (2020)
Record low53° (2000)
Sun, 0693° / 69°0.03
93 °
Lake Isabella, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high93°
Average low69°
Average precipitation0.03 in
Chance of precipitation12%
Record high108° (2022)
Record low51° (2000)
Mon, 0792° / 69°0.01
92 °
Lake Isabella, Monday, 7 September
Climate normal for this date — 60-year average.
Average high92°
Average low69°
Average precipitation0.01 in
Chance of precipitation7%
Record high105° (2020)
Record low54° (1965)
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 Isabella, 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 Isabella, 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.