Monthly outlook for Gustine, CA: average high 99.5°, average low 63.1°. That is 2.2° 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 10 August (109.6°), the coolest 22 August (59°).
99.5°/63.1°
Average high / low
+2.2°
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
99.7°
96.6°
+1.7°
18 August – 27 August
99.1°
93.9°
+2.9°
28 August – 6 September
at normal
94.6°
—
August records over 66 years
112.6°15 August 2020All-time high
53.6°23 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Newman (4 mi).
Sun, 0999° / 67°0
99 °
Gustine, Sunday, 9 August
Clear. High 99°, low 67°.
Pressure29.77 inHg
Wind2 mph NE
Humidity9%
Visibility6.2 mi
Dew point34°
Mon, 10110° / 68°0
110 °
Gustine, Monday, 10 August
Clear. High 110°, low 68°.
Pressure29.80 inHg
Wind4.6 mph SW
Humidity8%
Visibility6.2 mi
Dew point33°
Tue, 11107° / 70°0
107 °
Gustine, Tuesday, 11 August
Clear. High 107°, low 70°.
Pressure29.85 inHg
Wind2.7 mph S
Humidity10%
Visibility6.2 mi
Dew point36°
Wed, 12103° / 68°0
103 °
Gustine, Wednesday, 12 August
Overcast. High 103°, low 68°.
Pressure29.80 inHg
Wind4.1 mph S
Humidity13%
Visibility6.2 mi
Dew point39°
Thu, 1395° / 63°0
95 °
Gustine, Thursday, 13 August
Partly cloudy. High 95°, low 63°.
Pressure29.77 inHg
Wind12 mph SW
Humidity21%
Visibility—
Dew point44°
Fri, 1499° / 59°0
99 °
Gustine, Friday, 14 August
Clear. High 99°, low 59°.
Pressure29.85 inHg
Wind8.9 mph W
Humidity17%
Visibility—
Dew point41°
Sat, 15100° / 61°0
100 °
Gustine, Saturday, 15 August
Clear. High 100°, low 61°.
Pressure29.91 inHg
Wind8.8 mph W
Humidity17%
Visibility—
Dew point42°
Sun, 16100° / 60°0
100 °
Gustine, Sunday, 16 August
Overcast. High 100°, low 60°.
Pressure29.97 inHg
Wind8.6 mph SW
Humidity15%
Visibility—
Dew point39°
Mon, 1794° / 63°0
94 °
Gustine, Monday, 17 August
Overcast. High 94°, low 63°.
Pressure29.97 inHg
Wind6.4 mph SE
Humidity15%
Visibility—
Dew point37°
Tue, 18101° / 64°0
101 °
Gustine, Tuesday, 18 August
Overcast. High 101°, low 64°.
Pressure29.91 inHg
Wind6.4 mph NW
Humidity13%
Visibility—
Dew point36°
Wed, 19102° / 62°0
102 °
Gustine, Wednesday, 19 August
Clear. High 102°, low 62°.
Pressure29.88 inHg
Wind8.1 mph W
Humidity9%
Visibility—
Dew point28°
Thu, 2096° / 59°0
96 °
Gustine, Thursday, 20 August
Overcast. High 96°, low 59°.
Pressure29.83 inHg
Wind9.4 mph SW
Humidity11%
Visibility—
Dew point30°
Fri, 21100° / 61°0
100 °
Gustine, Friday, 21 August
Clear. High 100°, low 61°.
Pressure29.80 inHg
Wind12.5 mph SW
Humidity14%
Visibility—
Dew point37°
Sat, 2296° / 59°0
96 °
Gustine, Saturday, 22 August
Overcast. High 96°, low 59°.
Pressure29.85 inHg
Wind11.5 mph SW
Humidity16%
Visibility—
Dew point39°
Sun, 23100° / 60°0
100 °
Gustine, Sunday, 23 August
Clear. High 100°, low 60°.
Pressure29.85 inHg
Wind9 mph W
Humidity17%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2494° / 64°0
94 °
Gustine, Monday, 24 August
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2025)
Record low54° (1963)
Tue, 2594° / 63°0
94 °
Gustine, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high94°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high107° (2010)
Record low54° (1963)
Wed, 2694° / 63°0
94 °
Gustine, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high94°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2019)
Record low55° (1976)
Thu, 2795° / 64°0
95 °
Gustine, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high95°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high107° (2017)
Record low56° (1978)
Fri, 2896° / 64°0
96 °
Gustine, Friday, 28 August
Climate normal for this date — 60-year average.
Average high96°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2017)
Record low55° (1960)
Sat, 2995° / 64°0
95 °
Gustine, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high95°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2021)
Record low55° (2010)
Sun, 3094° / 64°0
94 °
Gustine, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2021)
Record low55° (1966)
Mon, 3194° / 63°0
94 °
Gustine, Monday, 31 August
Climate normal for this date — 60-year average.
Average high94°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2007)
Record low56° (1975)
Tue, 0195° / 64°0
95 °
Gustine, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high95°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high109° (2022)
Record low51° (1964)
Wed, 0295° / 64°0
95 °
Gustine, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high95°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high110° (2017)
Record low55° (2021)
Thu, 0394° / 64°0
94 °
Gustine, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high107° (2017)
Record low53° (1964)
Fri, 0494° / 64°0
94 °
Gustine, Friday, 4 September
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high111° (2022)
Record low53° (2000)
Sat, 0594° / 64°0.01
94 °
Gustine, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0.01 in
Chance of precipitation2%
Record high115° (2022)
Record low54° (2000)
Sun, 0694° / 64°0
94 °
Gustine, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high118° (2022)
Record low53° (1996)
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 Gustine, 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 Gustine, 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.