Monthly outlook for Rancho Llano Seco, CA: average high 106.2°, average low 65.6°. That is 5.8° 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 23 August (124.8°), the coolest 17 August (58.9°).
106.2°/65.6°
Average high / low
+5.8°
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
100.3°
96.9°
+1.9°
19 August – 28 August
116.1°
94.4°
+12.1°
29 August – 7 September
at normal
94.6°
—
August records over 66 years
117.5°15 August 2021All-time high
52.3°21 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Hamilton City (10 mi).
Mon, 1099° / 67°0
99 °
Rancho Llano Seco, Monday, 10 August
Clear. High 99°, low 67°.
Pressure29.80 inHg
Wind6.5 mph SE
Humidity12%
Visibility6.2 mi
Dew point37°
Tue, 11107° / 61°0
107 °
Rancho Llano Seco, Tuesday, 11 August
Clear. High 107°, low 61°.
Pressure29.85 inHg
Wind7.7 mph SE
Humidity15%
Visibility6.2 mi
Dew point41°
Wed, 12104° / 65°0
104 °
Rancho Llano Seco, Wednesday, 12 August
Overcast. High 104°, low 65°.
Pressure29.77 inHg
Wind7.2 mph SE
Humidity15%
Visibility6.2 mi
Dew point39°
Thu, 1396° / 62°0
96 °
Rancho Llano Seco, Thursday, 13 August
Overcast. High 96°, low 62°.
Pressure29.80 inHg
Wind7.8 mph S
Humidity28%
Visibility6.2 mi
Dew point49°
Fri, 1497° / 60°0
97 °
Rancho Llano Seco, Friday, 14 August
Clear. High 97°, low 60°.
Pressure29.83 inHg
Wind9.4 mph S
Humidity21%
Visibility—
Dew point44°
Sat, 1598° / 59°0
98 °
Rancho Llano Seco, Saturday, 15 August
Overcast. High 98°, low 59°.
Pressure29.91 inHg
Wind10.5 mph SE
Humidity21%
Visibility—
Dew point45°
Sun, 1698° / 59°0
98 °
Rancho Llano Seco, Sunday, 16 August
Overcast. High 98°, low 59°.
Pressure29.97 inHg
Wind10.4 mph SE
Humidity16%
Visibility—
Dew point38°
Mon, 17100° / 59°0
100 °
Rancho Llano Seco, Monday, 17 August
Mostly clear. High 100°, low 59°.
Pressure29.91 inHg
Wind10.2 mph S
Humidity13%
Visibility—
Dew point35°
Tue, 18103° / 59°0
103 °
Rancho Llano Seco, Tuesday, 18 August
Clear. High 103°, low 59°.
Pressure29.88 inHg
Wind9.6 mph S
Humidity9%
Visibility—
Dew point28°
Wed, 19106° / 62°0
106 °
Rancho Llano Seco, Wednesday, 19 August
Clear. High 106°, low 62°.
Pressure29.85 inHg
Wind9.3 mph S
Humidity8%
Visibility—
Dew point27°
Thu, 20112° / 67°0
112 °
Rancho Llano Seco, Thursday, 20 August
Clear. High 112°, low 67°.
Pressure29.85 inHg
Wind8.5 mph S
Humidity8%
Visibility—
Dew point32°
Fri, 21117° / 73°0
117 °
Rancho Llano Seco, Friday, 21 August
Clear. High 117°, low 73°.
Pressure29.83 inHg
Wind6.2 mph NW
Humidity9%
Visibility—
Dew point40°
Sat, 22122° / 78°0
122 °
Rancho Llano Seco, Saturday, 22 August
Clear. High 122°, low 78°.
Pressure29.74 inHg
Wind7 mph SW
Humidity8%
Visibility—
Dew point40°
Sun, 23125° / 79°0
125 °
Rancho Llano Seco, Sunday, 23 August
Clear. High 125°, low 79°.
Pressure29.68 inHg
Wind15.6 mph SE
Humidity6%
Visibility—
Dew point35°
Mon, 24115° / 73°0
115 °
Rancho Llano Seco, Monday, 24 August
Partly cloudy. High 115°, low 73°.
Pressure29.74 inHg
Wind13.4 mph SE
Humidity11%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2594° / 65°0
94 °
Rancho Llano Seco, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high94°
Average low65°
Average precipitation0 in
Chance of precipitation2%
Record high111° (2010)
Record low58° (1963)
Wed, 2694° / 65°0
94 °
Rancho Llano Seco, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high94°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2019)
Record low58° (1970)
Thu, 2795° / 66°0
95 °
Rancho Llano Seco, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high95°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2017)
Record low58° (1991)
Fri, 2896° / 66°0
96 °
Rancho Llano Seco, Friday, 28 August
Climate normal for this date — 60-year average.
Average high96°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high109° (2021)
Record low58° (1980)
Sat, 2995° / 66°0
95 °
Rancho Llano Seco, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high95°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2021)
Record low60° (1971)
Sun, 3094° / 66°0
94 °
Rancho Llano Seco, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high94°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high108° (1987)
Record low57° (1966)
Mon, 3195° / 65°0
95 °
Rancho Llano Seco, Monday, 31 August
Climate normal for this date — 60-year average.
Average high95°
Average low65°
Average precipitation0 in
Chance of precipitation2%
Record high109° (1987)
Record low55° (1966)
Tue, 0195° / 65°0
95 °
Rancho Llano Seco, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high95°
Average low65°
Average precipitation0 in
Chance of precipitation3%
Record high111° (2017)
Record low53° (1964)
Wed, 0295° / 65°0
95 °
Rancho Llano Seco, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high95°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high112° (2017)
Record low51° (1964)
Thu, 0395° / 65°0
95 °
Rancho Llano Seco, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high95°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high112° (1988)
Record low54° (2000)
Fri, 0495° / 65°0
95 °
Rancho Llano Seco, Friday, 4 September
Climate normal for this date — 60-year average.
Average high95°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high111° (1988)
Record low56° (1960)
Sat, 0594° / 65°0
94 °
Rancho Llano Seco, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high94°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high116° (2022)
Record low53° (2000)
Sun, 0694° / 65°0
94 °
Rancho Llano Seco, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high94°
Average low65°
Average precipitation0 in
Chance of precipitation2%
Record high118° (2022)
Record low56° (1996)
Mon, 0794° / 65°0
94 °
Rancho Llano Seco, Monday, 7 September
Climate normal for this date — 60-year average.
Average high94°
Average low65°
Average precipitation0 in
Chance of precipitation2%
Record high115° (2020)
Record low55° (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 Rancho Llano Seco, 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 Rancho Llano Seco, 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.