Monthly outlook for Highland, CA: average high 75.6°, average low 57.5°. That is 1.5° below the climate normal for October. Precipitation is expected on 2 days (about 1.8 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 26 October (87.4°), the coolest 14 October (49.3°).
75.6°/57.5°
Average high / low
−1.5°
Below normal
2 / 1
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
73.5°
79.2°
-3.1°
22 October – 31 October
79°
75.6°
+1.9°
1 November – 10 November
at normal
72.7°
—
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).
Tue, 1363° / 50°0
63 °
Highland, Tuesday, 13 October
Clear. High 63°, low 50°.
Pressure30.00 inHg
Wind3.9 mph SW
Humidity51%
Visibility6.2 mi
Dew point42°
Wed, 1475° / 49°0
75 °
Highland, Wednesday, 14 October
Clear. High 75°, low 49°.
Pressure30.06 inHg
Wind0.8 mph S
Humidity28%
Visibility6.2 mi
Dew point33°
Thu, 1579° / 52°0
79 °
Highland, Thursday, 15 October
Clear. High 79°, low 52°.
Pressure30.00 inHg
Wind7.6 mph NE
Humidity24%
Visibility6.2 mi
Dew point37°
Fri, 1681° / 62°0
81 °
Highland, Friday, 16 October
Clear. High 81°, low 62°.
Pressure29.97 inHg
Wind11.4 mph NE
Humidity32%
Visibility—
Dew point43°
Sat, 1779° / 61°0.02
79 °
Highland, Saturday, 17 October
Light rain. High 79°, low 61°.
Pressure30.00 inHg
Wind5.9 mph NE
Humidity45%
Visibility—
Dew point51°
Sun, 1884° / 65°0
84 °
Highland, Sunday, 18 October
Clear. High 84°, low 65°.
Pressure29.97 inHg
Wind7.9 mph SW
Humidity23%
Visibility—
Dew point38°
Mon, 1982° / 65°0
82 °
Highland, Monday, 19 October
Clear. High 82°, low 65°.
Pressure30.00 inHg
Wind6.4 mph SW
Humidity27%
Visibility—
Dew point40°
Tue, 2070° / 57°0.01
70 °
Highland, Tuesday, 20 October
Light rain. High 70°, low 57°.
Pressure29.88 inHg
Wind11.7 mph SW
Humidity52%
Visibility—
Dew point47°
Wed, 2164° / 53°0.06
64 °
Highland, Wednesday, 21 October
Light rain. High 64°, low 53°.
Pressure29.80 inHg
Wind9.5 mph W
Humidity46%
Visibility—
Dew point40°
Thu, 2268° / 51°0
68 °
Highland, Thursday, 22 October
Clear. High 68°, low 51°.
Pressure29.94 inHg
Wind8.7 mph W
Humidity39%
Visibility—
Dew point36°
Fri, 2370° / 52°0
70 °
Highland, Friday, 23 October
Clear. High 70°, low 52°.
Pressure30.15 inHg
Wind7 mph NE
Humidity40%
Visibility—
Dew point38°
Sat, 2480° / 57°0
80 °
Highland, Saturday, 24 October
Clear. High 80°, low 57°.
Pressure30.15 inHg
Wind8.5 mph NE
Humidity15%
Visibility—
Dew point21°
Sun, 2583° / 62°0
83 °
Highland, Sunday, 25 October
Clear. High 83°, low 62°.
Pressure30.06 inHg
Wind9.1 mph NE
Humidity18%
Visibility—
Dew point29°
Mon, 2687° / 65°0
87 °
Highland, Monday, 26 October
Overcast. High 87°, low 65°.
Pressure30.09 inHg
Wind8.9 mph NE
Humidity20%
Visibility—
Dew point35°
Tue, 2786° / 67°0
86 °
Highland, Tuesday, 27 October
Overcast. High 86°, low 67°.
Pressure30.06 inHg
Wind7.6 mph NE
Humidity21%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2875° / 51°0.02
75 °
Highland, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high75°
Average low51°
Average precipitation0.02 in
Chance of precipitation8%
Record high94° (2017)
Record low38° (1970)
Thu, 2973° / 51°0.01
73 °
Highland, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high73°
Average low51°
Average precipitation0.01 in
Chance of precipitation8%
Record high91° (2025)
Record low33° (1971)
Fri, 3073° / 50°0.03
73 °
Highland, Friday, 30 October
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation12%
Record high91° (2025)
Record low31° (1971)
Sat, 3174° / 50°0.02
74 °
Highland, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high74°
Average low50°
Average precipitation0.02 in
Chance of precipitation5%
Record high89° (1988)
Record low35° (1972)
Sun, 0174° / 49°0.02
74 °
Highland, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.02 in
Chance of precipitation10%
Record high89° (2020)
Record low35° (1971)
Mon, 0274° / 49°0.02
74 °
Highland, Monday, 2 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.02 in
Chance of precipitation8%
Record high89° (2009)
Record low37° (1971)
Tue, 0375° / 48°0.01
75 °
Highland, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high75°
Average low48°
Average precipitation0.01 in
Chance of precipitation8%
Record high92° (2010)
Record low37° (1990)
Wed, 0475° / 49°0.02
75 °
Highland, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high75°
Average low49°
Average precipitation0.02 in
Chance of precipitation7%
Record high92° (2020)
Record low34° (1994)
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)
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.