Monthly outlook for Whitney Portal, CA: average high 68.5°, average low 52.6°. That is 11.5° below the climate normal for August. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 1 days and 0.2 inches. The warmest day looks like 9 August (76.5°), the coolest 9 August (43.6°).
68.5°/52.6°
Average high / low
−11.5°
Below normal
3 / 1
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
66.4°
90°
-13.1°
19 August – 28 August
72.1°
87.8°
-8.7°
29 August – 7 September
at normal
87°
—
August records over 66 years
100.8°16 August 2021All-time high
48°24 August 1983All-time low
Climate normals and records are computed from the nearest reference point — Lone Pine (8 mi).
Mon, 1075° / 45°0
75 °
Whitney Portal, Monday, 10 August
Overcast. High 75°, low 45°.
Pressure30.03 inHg
Wind9.3 mph E
Humidity21%
Visibility6.2 mi
Dew point30°
Tue, 1170° / 55°0
70 °
Whitney Portal, Tuesday, 11 August
Overcast. High 70°, low 55°.
Pressure30.09 inHg
Wind9.3 mph E
Humidity23%
Visibility6.2 mi
Dew point29°
Wed, 1265° / 53°0.04
65 °
Whitney Portal, Wednesday, 12 August
Light rain. High 65°, low 53°.
Pressure29.97 inHg
Wind8.4 mph E
Humidity28%
Visibility6.2 mi
Dew point33°
Thu, 1365° / 49°0
65 °
Whitney Portal, Thursday, 13 August
Light rain. High 65°, low 49°.
Pressure29.91 inHg
Wind9.6 mph E
Humidity28%
Visibility—
Dew point27°
Fri, 1465° / 48°0
65 °
Whitney Portal, Friday, 14 August
Clear. High 65°, low 48°.
Pressure30.00 inHg
Wind11.8 mph SE
Humidity31%
Visibility—
Dew point28°
Sat, 1563° / 49°0
63 °
Whitney Portal, Saturday, 15 August
Overcast. High 63°, low 49°.
Pressure30.12 inHg
Wind11.7 mph SE
Humidity23%
Visibility—
Dew point21°
Sun, 1654° / 44°0.37
54 °
Whitney Portal, Sunday, 16 August
Rain. High 54°, low 44°.
Pressure30.27 inHg
Wind7.9 mph SE
Humidity81%
Visibility—
Dew point40°
Mon, 1762° / 47°0
62 °
Whitney Portal, Monday, 17 August
Mostly clear. High 62°, low 47°.
Pressure30.21 inHg
Wind7.5 mph E
Humidity37%
Visibility—
Dew point32°
Tue, 1868° / 53°0
68 °
Whitney Portal, Tuesday, 18 August
Clear. High 68°, low 53°.
Pressure30.21 inHg
Wind8.3 mph E
Humidity33%
Visibility—
Dew point34°
Wed, 1972° / 57°0
72 °
Whitney Portal, Wednesday, 19 August
Light rain. High 72°, low 57°.
Pressure30.18 inHg
Wind8.6 mph E
Humidity33%
Visibility—
Dew point36°
Thu, 2071° / 60°0.01
71 °
Whitney Portal, Thursday, 20 August
Light rain. High 71°, low 60°.
Pressure30.18 inHg
Wind9.3 mph E
Humidity33%
Visibility—
Dew point37°
Fri, 2170° / 58°0.11
70 °
Whitney Portal, Friday, 21 August
Light rain. High 70°, low 58°.
Pressure30.12 inHg
Wind13.3 mph W
Humidity30%
Visibility—
Dew point35°
Sat, 2273° / 58°0.03
73 °
Whitney Portal, Saturday, 22 August
Light rain. High 73°, low 58°.
Pressure30.15 inHg
Wind9.5 mph W
Humidity27%
Visibility—
Dew point33°
Sun, 2375° / 62°0.01
75 °
Whitney Portal, Sunday, 23 August
Light rain. High 75°, low 62°.
Pressure30.21 inHg
Wind11.8 mph E
Humidity29%
Visibility—
Dew point36°
Mon, 2472° / 60°0.07
72 °
Whitney Portal, Monday, 24 August
Light rain. High 72°, low 60°.
Pressure30.18 inHg
Wind9.6 mph W
Humidity29%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2588° / 69°0
88 °
Whitney Portal, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low69°
Average precipitation0 in
Chance of precipitation5%
Record high97° (2011)
Record low53° (1983)
Wed, 2688° / 69°0.01
88 °
Whitney Portal, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low69°
Average precipitation0.01 in
Chance of precipitation8%
Record high97° (2001)
Record low59° (1990)
Thu, 2787° / 69°0
87 °
Whitney Portal, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0 in
Chance of precipitation5%
Record high97° (2001)
Record low49° (1973)
Fri, 2889° / 70°0
89 °
Whitney Portal, Friday, 28 August
Climate normal for this date — 60-year average.
Average high89°
Average low70°
Average precipitation0 in
Chance of precipitation0%
Record high97° (2005)
Record low61° (1991)
Sat, 2989° / 70°0
89 °
Whitney Portal, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high89°
Average low70°
Average precipitation0 in
Chance of precipitation2%
Record high96° (2009)
Record low48° (1961)
Sun, 3089° / 69°0.02
89 °
Whitney Portal, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high89°
Average low69°
Average precipitation0.02 in
Chance of precipitation7%
Record high96° (1996)
Record low60° (1966)
Mon, 3188° / 69°0
88 °
Whitney Portal, Monday, 31 August
Climate normal for this date — 60-year average.
Average high88°
Average low69°
Average precipitation0 in
Chance of precipitation3%
Record high96° (1996)
Record low54° (2000)
Tue, 0187° / 68°0
87 °
Whitney Portal, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low68°
Average precipitation0 in
Chance of precipitation0%
Record high97° (2022)
Record low51° (1964)
Wed, 0287° / 69°0
87 °
Whitney Portal, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0 in
Chance of precipitation2%
Record high98° (2022)
Record low52° (1964)
Thu, 0387° / 68°0.01
87 °
Whitney Portal, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low68°
Average precipitation0.01 in
Chance of precipitation10%
Record high96° (2020)
Record low50° (2000)
Fri, 0486° / 68°0.02
86 °
Whitney Portal, Friday, 4 September
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.02 in
Chance of precipitation12%
Record high98° (2020)
Record low52° (2023)
Sat, 0586° / 67°0.02
86 °
Whitney Portal, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low67°
Average precipitation0.02 in
Chance of precipitation5%
Record high97° (2020)
Record low46° (1985)
Sun, 0686° / 68°0.02
86 °
Whitney Portal, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.02 in
Chance of precipitation7%
Record high99° (2022)
Record low54° (1972)
Mon, 0786° / 67°0.01
86 °
Whitney Portal, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low67°
Average precipitation0.01 in
Chance of precipitation7%
Record high97° (2022)
Record low54° (1985)
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 Whitney Portal, 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 Whitney Portal, 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.