Monthly outlook for South Yuba, CA: average high 104.7°, average low 68.1°. That is 6.3° 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 23 August (118.9°), the coolest 15 August (60.2°).
104.7°/68.1°
Average high / low
+6.3°
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
98.4°
94.2°
+2.3°
19 August – 28 August
115.3°
92.2°
+12.9°
29 August – 7 September
at normal
92.7°
—
August records over 66 years
112.3°16 August 2023All-time high
53.1°21 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Yuba City (3 mi).
Mon, 10101° / 69°0
101 °
South Yuba, Monday, 10 August
Mostly clear. High 101°, low 69°.
Pressure29.80 inHg
Wind8.3 mph S
Humidity15%
Visibility6.2 mi
Dew point42°
Tue, 11106° / 62°0
106 °
South Yuba, Tuesday, 11 August
Clear. High 106°, low 62°.
Pressure29.85 inHg
Wind7.1 mph S
Humidity17%
Visibility6.2 mi
Dew point42°
Wed, 12102° / 64°0
102 °
South Yuba, Wednesday, 12 August
Clear. High 102°, low 64°.
Pressure29.77 inHg
Wind8 mph S
Humidity17%
Visibility6.2 mi
Dew point42°
Thu, 1391° / 62°0
91 °
South Yuba, Thursday, 13 August
Overcast. High 91°, low 62°.
Pressure29.77 inHg
Wind13.4 mph S
Humidity23%
Visibility—
Dew point45°
Fri, 1495° / 61°0
95 °
South Yuba, Friday, 14 August
Clear. High 95°, low 61°.
Pressure29.85 inHg
Wind10.5 mph S
Humidity23%
Visibility—
Dew point45°
Sat, 1597° / 60°0
97 °
South Yuba, Saturday, 15 August
Clear. High 97°, low 60°.
Pressure29.91 inHg
Wind12.6 mph S
Humidity19%
Visibility—
Dew point42°
Sun, 1681° / 66°0
81 °
South Yuba, Sunday, 16 August
Overcast. High 81°, low 66°.
Pressure30.09 inHg
Wind11.2 mph SE
Humidity34%
Visibility—
Dew point46°
Mon, 17101° / 63°0
101 °
South Yuba, Monday, 17 August
Partly cloudy. High 101°, low 63°.
Pressure29.97 inHg
Wind8.1 mph SW
Humidity17%
Visibility—
Dew point43°
Tue, 18107° / 67°0
107 °
South Yuba, Tuesday, 18 August
Clear. High 107°, low 67°.
Pressure29.91 inHg
Wind9.9 mph SE
Humidity13%
Visibility—
Dew point41°
Wed, 19111° / 70°0
111 °
South Yuba, Wednesday, 19 August
Overcast. High 111°, low 70°.
Pressure29.83 inHg
Wind10.2 mph S
Humidity12%
Visibility—
Dew point41°
Thu, 20112° / 72°0
112 °
South Yuba, Thursday, 20 August
Overcast. High 112°, low 72°.
Pressure29.77 inHg
Wind14.1 mph S
Humidity12%
Visibility—
Dew point43°
Fri, 21115° / 74°0
115 °
South Yuba, Friday, 21 August
Mostly clear. High 115°, low 74°.
Pressure29.74 inHg
Wind8.9 mph SE
Humidity11%
Visibility—
Dew point42°
Sat, 22117° / 76°0
117 °
South Yuba, Saturday, 22 August
Overcast. High 117°, low 76°.
Pressure29.77 inHg
Wind8.7 mph SE
Humidity10%
Visibility—
Dew point41°
Sun, 23119° / 78°0
119 °
South Yuba, Sunday, 23 August
Mostly clear. High 119°, low 78°.
Pressure29.80 inHg
Wind10.8 mph E
Humidity8%
Visibility—
Dew point38°
Mon, 24118° / 78°0
118 °
South Yuba, Monday, 24 August
Clear. High 118°, low 78°.
Pressure29.77 inHg
Wind10 mph SW
Humidity8%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2592° / 63°0
92 °
South Yuba, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high92°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high110° (2010)
Record low56° (2024)
Wed, 2692° / 63°0
92 °
South Yuba, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high92°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2017)
Record low56° (1970)
Thu, 2793° / 64°0
93 °
South Yuba, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high109° (2017)
Record low56° (1991)
Fri, 2894° / 64°0
94 °
South Yuba, Friday, 28 August
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2017)
Record low57° (1960)
Sat, 2993° / 64°0
93 °
South Yuba, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high107° (2021)
Record low56° (1980)
Sun, 3092° / 64°0
92 °
South Yuba, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high92°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high106° (1987)
Record low56° (1966)
Mon, 3192° / 64°0
92 °
South Yuba, Monday, 31 August
Climate normal for this date — 60-year average.
Average high92°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high105° (1976)
Record low56° (1964)
Tue, 0193° / 64°0
93 °
South Yuba, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation5%
Record high110° (2017)
Record low55° (2012)
Wed, 0293° / 64°0
93 °
South Yuba, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high109° (2017)
Record low54° (1964)
Thu, 0393° / 64°0
93 °
South Yuba, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high108° (2017)
Record low53° (2000)
Fri, 0493° / 63°0
93 °
South Yuba, Friday, 4 September
Climate normal for this date — 60-year average.
Average high93°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2022)
Record low54° (1965)
Sat, 0593° / 64°0
93 °
South Yuba, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high116° (2022)
Record low55° (2000)
Sun, 0692° / 64°0
92 °
South Yuba, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high92°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high116° (2022)
Record low56° (1973)
Mon, 0792° / 63°0
92 °
South Yuba, Monday, 7 September
Climate normal for this date — 60-year average.
Average high92°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high115° (2020)
Record low54° (1978)
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 South Yuba, 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 South Yuba, 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.