Monthly outlook for Highland, CA: average high 72.4°, average low 57.6°. That is 1.8° below the climate normal for October. Precipitation is expected on 4 days (about 2.9 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 20 October (80.2°), the coolest 25 October (49.7°).
72.4°/57.6°
Average high / low
−1.8°
Below normal
4 / 1
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
73.9°
76.5°
-1.4°
30 October – 8 November
69.8°
73.3°
-2°
9 November – 18 November
at normal
69.4°
—
October records over 66 years
105.6°2 October 2024All-time high
30.6°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — San Bernardino (8 mi).
Wed, 2177° / 57°0
77 °
Highland, Wednesday, 21 October
Clear. High 77°, low 57°.
Pressure29.91 inHg
Wind3.7 mph S
Humidity44%
Visibility6.2 mi
Dew point48°
Thu, 2264° / 54°1.12
64 °
Highland, Thursday, 22 October
Heavy rain. High 64°, low 54°.
Pressure29.91 inHg
Wind5.1 mph S
Humidity62%
Visibility3.7 mi
Dew point49°
Fri, 2367° / 51°0
67 °
Highland, Friday, 23 October
Mostly clear. High 67°, low 51°.
Pressure30.00 inHg
Wind3.8 mph SW
Humidity61%
Visibility6.2 mi
Dew point48°
Sat, 2474° / 50°0
74 °
Highland, Saturday, 24 October
Clear. High 74°, low 50°.
Pressure29.97 inHg
Wind6.7 mph N
Humidity38%
Visibility—
Dew point41°
Sun, 2577° / 50°0
77 °
Highland, Sunday, 25 October
Clear. High 77°, low 50°.
Pressure30.03 inHg
Wind6.1 mph NE
Humidity33%
Visibility—
Dew point40°
Mon, 2680° / 65°0
80 °
Highland, Monday, 26 October
Overcast. High 80°, low 65°.
Pressure29.94 inHg
Wind7.2 mph W
Humidity27%
Visibility—
Dew point38°
Tue, 2777° / 63°0
77 °
Highland, Tuesday, 27 October
Clear. High 77°, low 63°.
Pressure29.97 inHg
Wind6.9 mph SW
Humidity33%
Visibility—
Dew point43°
Wed, 2875° / 64°0
75 °
Highland, Wednesday, 28 October
Overcast. High 75°, low 64°.
Pressure29.94 inHg
Wind6.3 mph SW
Humidity37%
Visibility—
Dew point45°
Thu, 2968° / 61°0.01
68 °
Highland, Thursday, 29 October
Light rain. High 68°, low 61°.
Pressure29.94 inHg
Wind6.1 mph SW
Humidity72%
Visibility—
Dew point55°
Fri, 3065° / 58°0.09
65 °
Highland, Friday, 30 October
Light rain. High 65°, low 58°.
Pressure29.94 inHg
Wind8.1 mph S
Humidity67%
Visibility—
Dew point50°
Sat, 3162° / 55°0.13
62 °
Highland, Saturday, 31 October
Light rain. High 62°, low 55°.
Pressure30.09 inHg
Wind6 mph S
Humidity71%
Visibility—
Dew point49°
Sun, 0175° / 54°0
75 °
Highland, Sunday, 1 November
Clear. High 75°, low 54°.
Pressure30.15 inHg
Wind5 mph NE
Humidity47%
Visibility—
Dew point46°
Mon, 0280° / 63°0
80 °
Highland, Monday, 2 November
Mostly clear. High 80°, low 63°.
Pressure30.09 inHg
Wind6 mph NE
Humidity27%
Visibility—
Dew point38°
Tue, 0375° / 62°0.02
75 °
Highland, Tuesday, 3 November
Light rain. High 75°, low 62°.
Pressure30.00 inHg
Wind8.3 mph SE
Humidity28%
Visibility—
Dew point39°
Wed, 0462° / 58°1.51
62 °
Highland, Wednesday, 4 November
Heavy rain. High 62°, low 58°.
Pressure29.94 inHg
Wind15.6 mph SE
Humidity86%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0574° / 50°0.01
74 °
Highland, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high74°
Average low50°
Average precipitation0.01 in
Chance of precipitation5%
Record high91° (2020)
Record low37° (2015)
Fri, 0672° / 49°0.01
72 °
Highland, Friday, 6 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.01 in
Chance of precipitation5%
Record high88° (1991)
Record low40° (2015)
Sat, 0771° / 49°0.05
71 °
Highland, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high71°
Average low49°
Average precipitation0.05 in
Chance of precipitation7%
Record high90° (2006)
Record low35° (2011)
Sun, 0871° / 49°0.06
71 °
Highland, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high71°
Average low49°
Average precipitation0.06 in
Chance of precipitation17%
Record high89° (2016)
Record low35° (2011)
Mon, 0970° / 48°0.04
70 °
Highland, Monday, 9 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.04 in
Chance of precipitation12%
Record high89° (2025)
Record low35° (2020)
Tue, 1070° / 48°0.02
70 °
Highland, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.02 in
Chance of precipitation15%
Record high91° (2025)
Record low37° (2020)
Wed, 1170° / 47°0.05
70 °
Highland, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.05 in
Chance of precipitation10%
Record high87° (2021)
Record low35° (2012)
Thu, 1270° / 47°0.02
70 °
Highland, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.02 in
Chance of precipitation12%
Record high89° (2021)
Record low32° (2000)
Fri, 1370° / 46°0.02
70 °
Highland, Friday, 13 November
Climate normal for this date — 60-year average.
Average high70°
Average low46°
Average precipitation0.02 in
Chance of precipitation12%
Record high89° (2021)
Record low31° (1985)
Sat, 1470° / 47°0.04
70 °
Highland, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.04 in
Chance of precipitation12%
Record high90° (2021)
Record low33° (1964)
Sun, 1569° / 46°0.07
69 °
Highland, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high69°
Average low46°
Average precipitation0.07 in
Chance of precipitation8%
Record high85° (2021)
Record low30° (1964)
Mon, 1668° / 47°0.05
68 °
Highland, Monday, 16 November
Climate normal for this date — 60-year average.
Average high68°
Average low47°
Average precipitation0.05 in
Chance of precipitation13%
Record high86° (2019)
Record low32° (2000)
Tue, 1768° / 47°0.02
68 °
Highland, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high68°
Average low47°
Average precipitation0.02 in
Chance of precipitation8%
Record high86° (2008)
Record low33° (2000)
Wed, 1868° / 45°0.06
68 °
Highland, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high68°
Average low45°
Average precipitation0.06 in
Chance of precipitation12%
Record high88° (2019)
Record low27° (1964)
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 Highland, 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 Highland, 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.