Monthly outlook for Day Valley, CA: average high 75.9°, average low 53.6°. That is 3.5° 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 9 August (87.5°), the coolest 16 August (50.7°).
75.9°/53.6°
Average high / low
+3.5°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
74.1°
69.8°
+2.4°
18 August – 27 August
78.9°
69.5°
+5.2°
28 August – 6 September
at normal
70.9°
—
August records over 66 years
99.1°14 August 2020All-time high
51.1°1 August 2011All-time low
Climate normals and records are computed from the nearest reference point — Capitola (6 mi).
Sun, 0987° / 59°0
87 °
Day Valley, Sunday, 9 August
Clear. High 87°, low 59°.
Pressure29.83 inHg
Wind5.7 mph S
Humidity36%
Visibility4.2 mi
Dew point50°
Mon, 1077° / 54°0
77 °
Day Valley, Monday, 10 August
Overcast. High 77°, low 54°.
Pressure29.91 inHg
Wind6.2 mph S
Humidity39%
Visibility5.1 mi
Dew point49°
Tue, 1177° / 52°0
77 °
Day Valley, Tuesday, 11 August
Clear. High 77°, low 52°.
Pressure29.94 inHg
Wind6.8 mph S
Humidity38%
Visibility6.2 mi
Dew point48°
Wed, 1271° / 53°0
71 °
Day Valley, Wednesday, 12 August
Overcast. High 71°, low 53°.
Pressure29.88 inHg
Wind7.2 mph S
Humidity51%
Visibility6.2 mi
Dew point52°
Thu, 1368° / 54°0
68 °
Day Valley, Thursday, 13 August
Overcast. High 68°, low 54°.
Pressure29.88 inHg
Wind7.3 mph SW
Humidity57%
Visibility—
Dew point51°
Fri, 1465° / 53°0
65 °
Day Valley, Friday, 14 August
Overcast. High 65°, low 53°.
Pressure29.97 inHg
Wind6.1 mph SW
Humidity63%
Visibility—
Dew point51°
Sat, 1571° / 51°0
71 °
Day Valley, Saturday, 15 August
Clear. High 71°, low 51°.
Pressure30.03 inHg
Wind7.1 mph SW
Humidity45%
Visibility—
Dew point47°
Sun, 1675° / 51°0
75 °
Day Valley, Sunday, 16 August
Clear. High 75°, low 51°.
Pressure30.00 inHg
Wind7.7 mph SW
Humidity39%
Visibility—
Dew point46°
Mon, 1774° / 53°0
74 °
Day Valley, Monday, 17 August
Overcast. High 74°, low 53°.
Pressure30.06 inHg
Wind7 mph SW
Humidity41%
Visibility—
Dew point46°
Tue, 1881° / 56°0
81 °
Day Valley, Tuesday, 18 August
Clear. High 81°, low 56°.
Pressure30.00 inHg
Wind5.9 mph S
Humidity30%
Visibility—
Dew point44°
Wed, 1986° / 53°0
86 °
Day Valley, Wednesday, 19 August
Clear. High 86°, low 53°.
Pressure29.94 inHg
Wind5.3 mph S
Humidity23%
Visibility—
Dew point39°
Thu, 2079° / 53°0
79 °
Day Valley, Thursday, 20 August
Clear. High 79°, low 53°.
Pressure29.94 inHg
Wind6.7 mph S
Humidity41%
Visibility—
Dew point51°
Fri, 2178° / 53°0
78 °
Day Valley, Friday, 21 August
Clear. High 78°, low 53°.
Pressure29.88 inHg
Wind7.5 mph S
Humidity40%
Visibility—
Dew point49°
Sat, 2274° / 54°0
74 °
Day Valley, Saturday, 22 August
Overcast. High 74°, low 54°.
Pressure29.85 inHg
Wind7.2 mph S
Humidity47%
Visibility—
Dew point51°
Sun, 2375° / 54°0
75 °
Day Valley, Sunday, 23 August
Overcast. High 75°, low 54°.
Pressure29.88 inHg
Wind7.9 mph S
Humidity45%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2470° / 58°0
70 °
Day Valley, Monday, 24 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high82° (2010)
Record low53° (2018)
Tue, 2569° / 58°0
69 °
Day Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high69°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high81° (2024)
Record low53° (2005)
Wed, 2670° / 58°0
70 °
Day Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high86° (2024)
Record low54° (2002)
Thu, 2771° / 58°0
71 °
Day Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2023)
Record low53° (1973)
Fri, 2871° / 59°0
71 °
Day Valley, Friday, 28 August
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2023)
Record low54° (1973)
Sat, 2971° / 59°0
71 °
Day Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high87° (2023)
Record low53° (1960)
Sun, 3071° / 59°0
71 °
Day Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high92° (2025)
Record low53° (1960)
Mon, 3170° / 58°0
70 °
Day Valley, Monday, 31 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high97° (2025)
Record low53° (2018)
Tue, 0171° / 58°0
71 °
Day Valley, 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, 0271° / 59°0
71 °
Day Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high100° (2017)
Record low54° (1973)
Thu, 0371° / 58°0
71 °
Day Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high89° (2022)
Record low54° (1970)
Fri, 0471° / 58°0
71 °
Day Valley, Friday, 4 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2022)
Record low53° (1973)
Sat, 0572° / 59°0
72 °
Day Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high72°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high98° (2022)
Record low52° (1965)
Sun, 0672° / 59°0
72 °
Day Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high72°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2020)
Record low53° (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 Day Valley, 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 Day Valley, 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.