Monthly outlook for Devon, CA: average high 73.7°, average low 58.7°. That is 2.1° below 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 (87.5°), the coolest 16 August (56.2°).
73.7°/58.7°
Average high / low
−2.1°
Below 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
74.3°
77.8°
-1.9°
18 August – 27 August
72.6°
77.6°
-2.8°
28 August – 6 September
at normal
79.5°
—
August records over 66 years
103.5°19 August 2020All-time high
49.1°4 August 2025All-time low
Climate normals and records are computed from the nearest reference point — Santa Maria (8 mi).
Sun, 0988° / 62°0
88 °
Devon, Sunday, 9 August
Mostly clear. High 88°, low 62°.
Pressure29.85 inHg
Wind9.3 mph W
Humidity55%
Visibility6.2 mi
Dew point58°
Mon, 1079° / 60°0
79 °
Devon, Monday, 10 August
Mostly clear. High 79°, low 60°.
Pressure29.91 inHg
Wind10.8 mph W
Humidity50%
Visibility6.2 mi
Dew point57°
Tue, 1175° / 59°0
75 °
Devon, Tuesday, 11 August
Mostly clear. High 75°, low 59°.
Pressure29.97 inHg
Wind9.3 mph W
Humidity58%
Visibility6.2 mi
Dew point58°
Wed, 1271° / 57°0
71 °
Devon, Wednesday, 12 August
Overcast. High 71°, low 57°.
Pressure29.91 inHg
Wind9.7 mph W
Humidity66%
Visibility—
Dew point56°
Thu, 1372° / 57°0
72 °
Devon, Thursday, 13 August
Overcast. High 72°, low 57°.
Pressure29.91 inHg
Wind10 mph W
Humidity67%
Visibility—
Dew point56°
Fri, 1471° / 59°0
71 °
Devon, Friday, 14 August
Overcast. High 71°, low 59°.
Pressure29.97 inHg
Wind8.4 mph W
Humidity67%
Visibility—
Dew point57°
Sat, 1570° / 57°0
70 °
Devon, Saturday, 15 August
Clear. High 70°, low 57°.
Pressure30.03 inHg
Wind10.2 mph NW
Humidity60%
Visibility—
Dew point55°
Sun, 1670° / 56°0
70 °
Devon, Sunday, 16 August
Overcast. High 70°, low 56°.
Pressure30.03 inHg
Wind10.7 mph NW
Humidity58%
Visibility—
Dew point54°
Mon, 1768° / 57°0
68 °
Devon, Monday, 17 August
Overcast. High 68°, low 57°.
Pressure30.09 inHg
Wind13 mph W
Humidity65%
Visibility—
Dew point55°
Tue, 1872° / 58°0
72 °
Devon, Tuesday, 18 August
Partly cloudy. High 72°, low 58°.
Pressure30.00 inHg
Wind11.8 mph NW
Humidity59%
Visibility—
Dew point55°
Wed, 1974° / 59°0
74 °
Devon, Wednesday, 19 August
Overcast. High 74°, low 59°.
Pressure29.91 inHg
Wind12.4 mph NW
Humidity53%
Visibility—
Dew point53°
Thu, 2074° / 59°0
74 °
Devon, Thursday, 20 August
Overcast. High 74°, low 59°.
Pressure29.91 inHg
Wind10.7 mph NW
Humidity58%
Visibility—
Dew point56°
Fri, 2173° / 58°0
73 °
Devon, Friday, 21 August
Partly cloudy. High 73°, low 58°.
Pressure29.88 inHg
Wind9.8 mph W
Humidity60%
Visibility—
Dew point57°
Sat, 2272° / 58°0
72 °
Devon, Saturday, 22 August
Partly cloudy. High 72°, low 58°.
Pressure29.88 inHg
Wind10 mph W
Humidity65%
Visibility—
Dew point57°
Sun, 2370° / 58°0
70 °
Devon, Sunday, 23 August
Mostly clear. High 70°, low 58°.
Pressure29.91 inHg
Wind10.3 mph NW
Humidity66%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 60°0
78 °
Devon, Monday, 24 August
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high92° (1985)
Record low52° (2024)
Tue, 2578° / 60°0
78 °
Devon, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high91° (1985)
Record low53° (2022)
Wed, 2678° / 60°0
78 °
Devon, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high89° (2024)
Record low52° (2021)
Thu, 2780° / 59°0
80 °
Devon, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high96° (2009)
Record low52° (1973)
Fri, 2880° / 61°0
80 °
Devon, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0 in
Chance of precipitation0%
Record high98° (2023)
Record low52° (2010)
Sat, 2980° / 61°0
80 °
Devon, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0 in
Chance of precipitation0%
Record high94° (2009)
Record low52° (2020)
Sun, 3080° / 61°0
80 °
Devon, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0 in
Chance of precipitation0%
Record high94° (2023)
Record low52° (2022)
Mon, 3178° / 60°0
78 °
Devon, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high92° (2017)
Record low50° (2022)
Tue, 0179° / 60°0
79 °
Devon, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high101° (2017)
Record low52° (1964)
Wed, 0279° / 61°0
79 °
Devon, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0 in
Chance of precipitation2%
Record high111° (2017)
Record low52° (2021)
Thu, 0379° / 60°0
79 °
Devon, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low60°
Average precipitation0 in
Chance of precipitation2%
Record high105° (2022)
Record low51° (2021)
Fri, 0479° / 60°0.02
79 °
Devon, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low60°
Average precipitation0.02 in
Chance of precipitation3%
Record high103° (2022)
Record low49° (2021)
Sat, 0580° / 61°0.01
80 °
Devon, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.01 in
Chance of precipitation3%
Record high106° (2024)
Record low52° (2021)
Sun, 0680° / 61°0
80 °
Devon, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0 in
Chance of precipitation2%
Record high114° (2020)
Record low52° (2021)
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 Devon, 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 Devon, 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.