Monthly outlook for Groveland, CA: average high 88.8°, average low 63.7°. That is 0.9° below 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 10 August (97.8°), the coolest 17 August (58.3°).
88.8°/63.7°
Average high / low
−0.9°
Below 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
89.8°
91.4°
-0.9°
19 August – 28 August
87.2°
89.3°
-1.2°
29 August – 7 September
at normal
89.6°
—
August records over 66 years
107.1°17 August 2020All-time high
49.6°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Chinese Camp (11 mi).
Mon, 1098° / 69°0
98 °
Groveland, Monday, 10 August
Partly cloudy. High 98°, low 69°.
Pressure29.85 inHg
Wind9.1 mph SW
Humidity12%
Visibility6.2 mi
Dew point38°
Tue, 1197° / 71°0
97 °
Groveland, Tuesday, 11 August
Overcast. High 97°, low 71°.
Pressure29.88 inHg
Wind8.7 mph SW
Humidity14%
Visibility6.2 mi
Dew point39°
Wed, 1294° / 71°0
94 °
Groveland, Wednesday, 12 August
Light rain. High 94°, low 71°.
Pressure29.83 inHg
Wind9.6 mph SW
Humidity16%
Visibility6.2 mi
Dew point39°
Thu, 1389° / 66°0
89 °
Groveland, Thursday, 13 August
Overcast. High 89°, low 66°.
Pressure29.80 inHg
Wind11.7 mph SW
Humidity14%
Visibility—
Dew point32°
Fri, 1487° / 61°0
87 °
Groveland, Friday, 14 August
Clear. High 87°, low 61°.
Pressure29.88 inHg
Wind9.3 mph SW
Humidity20%
Visibility—
Dew point38°
Sat, 1585° / 62°0
85 °
Groveland, Saturday, 15 August
Overcast. High 85°, low 62°.
Pressure29.97 inHg
Wind11.7 mph S
Humidity20%
Visibility—
Dew point38°
Sun, 1685° / 62°0
85 °
Groveland, Sunday, 16 August
Partly cloudy. High 85°, low 62°.
Pressure30.03 inHg
Wind10.7 mph SW
Humidity29%
Visibility—
Dew point46°
Mon, 1783° / 58°0
83 °
Groveland, Monday, 17 August
Clear. High 83°, low 58°.
Pressure30.03 inHg
Wind10.4 mph SW
Humidity25%
Visibility—
Dew point41°
Tue, 1883° / 59°0
83 °
Groveland, Tuesday, 18 August
Partly cloudy. High 83°, low 59°.
Pressure29.94 inHg
Wind8.9 mph W
Humidity24%
Visibility—
Dew point41°
Wed, 1986° / 59°0
86 °
Groveland, Wednesday, 19 August
Mostly clear. High 86°, low 59°.
Pressure29.91 inHg
Wind10.3 mph W
Humidity25%
Visibility—
Dew point44°
Thu, 2086° / 61°0
86 °
Groveland, Thursday, 20 August
Clear. High 86°, low 61°.
Pressure29.88 inHg
Wind9.9 mph W
Humidity26%
Visibility—
Dew point46°
Fri, 2186° / 62°0
86 °
Groveland, Friday, 21 August
Clear. High 86°, low 62°.
Pressure29.88 inHg
Wind9.5 mph SW
Humidity23%
Visibility—
Dew point42°
Sat, 2287° / 62°0
87 °
Groveland, Saturday, 22 August
Partly cloudy. High 87°, low 62°.
Pressure29.91 inHg
Wind9 mph SW
Humidity21%
Visibility—
Dew point40°
Sun, 2389° / 66°0
89 °
Groveland, Sunday, 23 August
Clear. High 89°, low 66°.
Pressure29.88 inHg
Wind8.9 mph SW
Humidity18%
Visibility—
Dew point38°
Mon, 2489° / 64°0
89 °
Groveland, Monday, 24 August
Clear. High 89°, low 64°.
Pressure29.83 inHg
Wind9.6 mph SW
Humidity17%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2589° / 63°0
89 °
Groveland, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high89°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2010)
Record low53° (1963)
Wed, 2689° / 63°0
89 °
Groveland, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high89°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high102° (2017)
Record low55° (1978)
Thu, 2790° / 63°0
90 °
Groveland, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high90°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high102° (2017)
Record low54° (1978)
Fri, 2891° / 63°0
91 °
Groveland, Friday, 28 August
Climate normal for this date — 60-year average.
Average high91°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2017)
Record low56° (1991)
Sat, 2990° / 64°0
90 °
Groveland, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high90°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high103° (2021)
Record low55° (2010)
Sun, 3089° / 63°0
89 °
Groveland, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high89°
Average low63°
Average precipitation0 in
Chance of precipitation2%
Record high103° (2021)
Record low53° (2010)
Mon, 3189° / 62°0
89 °
Groveland, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low62°
Average precipitation0 in
Chance of precipitation0%
Record high101° (2022)
Record low54° (2010)
Tue, 0190° / 63°0.02
90 °
Groveland, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high90°
Average low63°
Average precipitation0.02 in
Chance of precipitation5%
Record high104° (2022)
Record low50° (1964)
Wed, 0290° / 64°0.01
90 °
Groveland, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low64°
Average precipitation0.01 in
Chance of precipitation3%
Record high105° (2022)
Record low49° (1964)
Thu, 0389° / 64°0
89 °
Groveland, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high103° (2017)
Record low55° (1964)
Fri, 0489° / 63°0.01
89 °
Groveland, Friday, 4 September
Climate normal for this date — 60-year average.
Average high89°
Average low63°
Average precipitation0.01 in
Chance of precipitation3%
Record high106° (2022)
Record low51° (2000)
Sat, 0589° / 63°0.02
89 °
Groveland, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high89°
Average low63°
Average precipitation0.02 in
Chance of precipitation3%
Record high108° (2022)
Record low49° (2000)
Sun, 0690° / 63°0.01
90 °
Groveland, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high90°
Average low63°
Average precipitation0.01 in
Chance of precipitation5%
Record high113° (2022)
Record low52° (1964)
Mon, 0789° / 62°0
89 °
Groveland, Monday, 7 September
Climate normal for this date — 60-year average.
Average high89°
Average low62°
Average precipitation0 in
Chance of precipitation2%
Record high109° (2020)
Record low52° (2002)
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 Groveland, 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 Groveland, 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.