Monthly outlook for East Highlands, CA: average high 91.6°, average low 70.3°. That is 0.2° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 9 August (101.3°), the coolest 16 August (67.2°).
91.6°/70.3°
Average high / low
+0.2°
Above normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
90.3°
91.5°
-0.7°
19 August – 28 August
93.6°
91.5°
+1.2°
29 August – 7 September
at normal
92.5°
—
August records over 66 years
111.7°18 August 2020All-time high
49.5°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — San Bernardino (7 mi).
Mon, 1098° / 74°0
98 °
East Highlands, Monday, 10 August
Mostly clear. High 98°, low 74°.
Pressure29.91 inHg
Wind9.4 mph SW
Humidity22%
Visibility6.2 mi
Dew point49°
Tue, 1194° / 73°0.01
94 °
East Highlands, Tuesday, 11 August
Light rain. High 94°, low 73°.
Pressure29.94 inHg
Wind7.6 mph W
Humidity24%
Visibility6.2 mi
Dew point48°
Wed, 1291° / 71°0
91 °
East Highlands, Wednesday, 12 August
Clear. High 91°, low 71°.
Pressure29.91 inHg
Wind8.5 mph W
Humidity26%
Visibility6.2 mi
Dew point48°
Thu, 1388° / 67°0
88 °
East Highlands, Thursday, 13 August
Partly cloudy. High 88°, low 67°.
Pressure29.94 inHg
Wind8.6 mph W
Humidity37%
Visibility—
Dew point52°
Fri, 1487° / 68°0
87 °
East Highlands, Friday, 14 August
Overcast. High 87°, low 68°.
Pressure29.97 inHg
Wind7.3 mph W
Humidity34%
Visibility—
Dew point50°
Sat, 1577° / 68°0.07
77 °
East Highlands, Saturday, 15 August
Light rain. High 77°, low 68°.
Pressure30.03 inHg
Wind6.1 mph NE
Humidity57%
Visibility—
Dew point58°
Sun, 1687° / 67°0
87 °
East Highlands, Sunday, 16 August
Overcast. High 87°, low 67°.
Pressure30.09 inHg
Wind9.5 mph SW
Humidity48%
Visibility—
Dew point59°
Mon, 1790° / 69°0
90 °
East Highlands, Monday, 17 August
Overcast. High 90°, low 69°.
Pressure30.09 inHg
Wind9.1 mph SW
Humidity31%
Visibility—
Dew point48°
Tue, 1891° / 69°0
91 °
East Highlands, Tuesday, 18 August
Partly cloudy. High 91°, low 69°.
Pressure29.97 inHg
Wind8.1 mph W
Humidity30%
Visibility—
Dew point49°
Wed, 1992° / 70°0
92 °
East Highlands, Wednesday, 19 August
Overcast. High 92°, low 70°.
Pressure29.94 inHg
Wind10.4 mph W
Humidity26%
Visibility—
Dew point46°
Thu, 2094° / 71°0
94 °
East Highlands, Thursday, 20 August
Overcast. High 94°, low 71°.
Pressure29.94 inHg
Wind9.6 mph SW
Humidity25%
Visibility—
Dew point47°
Fri, 2194° / 72°0
94 °
East Highlands, Friday, 21 August
Partly cloudy. High 94°, low 72°.
Pressure29.94 inHg
Wind9.2 mph SW
Humidity25%
Visibility—
Dew point47°
Sat, 2294° / 71°0
94 °
East Highlands, Saturday, 22 August
Clear. High 94°, low 71°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity24%
Visibility—
Dew point46°
Sun, 2393° / 70°0
93 °
East Highlands, Sunday, 23 August
Clear. High 93°, low 70°.
Pressure29.94 inHg
Wind8.9 mph W
Humidity23%
Visibility—
Dew point44°
Mon, 2495° / 70°0
95 °
East Highlands, Monday, 24 August
Clear. High 95°, low 70°.
Pressure29.88 inHg
Wind9.4 mph W
Humidity22%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2592° / 68°0.02
92 °
East Highlands, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high92°
Average low68°
Average precipitation0.02 in
Chance of precipitation10%
Record high104° (1985)
Record low56° (1990)
Wed, 2692° / 68°0.02
92 °
East Highlands, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high92°
Average low68°
Average precipitation0.02 in
Chance of precipitation10%
Record high103° (2011)
Record low55° (1973)
Thu, 2793° / 67°0.01
93 °
East Highlands, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high93°
Average low67°
Average precipitation0.01 in
Chance of precipitation8%
Record high105° (2021)
Record low55° (1973)
Fri, 2894° / 67°0.01
94 °
East Highlands, Friday, 28 August
Climate normal for this date — 60-year average.
Average high94°
Average low67°
Average precipitation0.01 in
Chance of precipitation3%
Record high107° (2017)
Record low55° (1973)
Sat, 2994° / 68°0.01
94 °
East Highlands, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high94°
Average low68°
Average precipitation0.01 in
Chance of precipitation10%
Record high107° (2017)
Record low55° (2010)
Sun, 3093° / 68°0.02
93 °
East Highlands, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high93°
Average low68°
Average precipitation0.02 in
Chance of precipitation12%
Record high108° (2017)
Record low55° (2010)
Mon, 3192° / 67°0.01
92 °
East Highlands, Monday, 31 August
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation7%
Record high107° (2022)
Record low54° (1964)
Tue, 0192° / 66°0.02
92 °
East Highlands, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high92°
Average low66°
Average precipitation0.02 in
Chance of precipitation10%
Record high107° (2017)
Record low54° (1964)
Wed, 0292° / 66°0.04
92 °
East Highlands, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high92°
Average low66°
Average precipitation0.04 in
Chance of precipitation15%
Record high105° (2007)
Record low50° (1964)
Thu, 0392° / 67°0.02
92 °
East Highlands, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.02 in
Chance of precipitation10%
Record high110° (2022)
Record low55° (1999)
Fri, 0492° / 67°0.01
92 °
East Highlands, Friday, 4 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation8%
Record high109° (2022)
Record low54° (1985)
Sat, 0592° / 67°0.01
92 °
East Highlands, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation7%
Record high113° (2020)
Record low56° (2016)
Sun, 0692° / 67°0.01
92 °
East Highlands, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation8%
Record high115° (2020)
Record low55° (2000)
Mon, 0792° / 67°0.01
92 °
East Highlands, Monday, 7 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation7%
Record high109° (2024)
Record low52° (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 East Highlands, 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 East Highlands, 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.