Monthly outlook for Barstow, CA: average high 72.1°, average low 56.9°. That is 1.3° below the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 1 days and 0.1 inches. The warmest day looks like 19 October (84.3°), the coolest 30 October (50.8°).
72.1°/56.9°
Average high / low
−1.3°
Below normal
2 / 1
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
75.3°
76.2°
-0.5°
26 October – 4 November
66.8°
71.1°
-2.4°
5 November – 14 November
at normal
67.4°
—
October records over 66 years
101.5°1 October 2024All-time high
28.6°29 October 1971All-time low
Sat, 1781° / 63°0
81 °
Barstow, Saturday, 17 October
Mostly clear. High 81°, low 63°.
Pressure30.12 inHg
Wind11.9 mph E
Humidity19%
Visibility6.2 mi
Dew point33°
Sun, 1881° / 66°0
81 °
Barstow, Sunday, 18 October
Clear. High 81°, low 66°.
Pressure30.03 inHg
Wind9.5 mph E
Humidity21%
Visibility6.2 mi
Dew point35°
Mon, 1984° / 61°0
84 °
Barstow, Monday, 19 October
Clear. High 84°, low 61°.
Pressure29.88 inHg
Wind0.6 mph W
Humidity21%
Visibility6.2 mi
Dew point36°
Tue, 2081° / 60°0
81 °
Barstow, Tuesday, 20 October
Clear. High 81°, low 60°.
Pressure29.85 inHg
Wind19.6 mph SW
Humidity37%
Visibility—
Dew point43°
Wed, 2173° / 55°0.03
73 °
Barstow, Wednesday, 21 October
Light rain. High 73°, low 55°.
Pressure29.91 inHg
Wind10.9 mph W
Humidity46%
Visibility—
Dew point44°
Thu, 2265° / 55°0.03
65 °
Barstow, Thursday, 22 October
Light rain. High 65°, low 55°.
Pressure29.91 inHg
Wind21 mph W
Humidity50%
Visibility—
Dew point42°
Fri, 2367° / 55°0.12
67 °
Barstow, Friday, 23 October
Light rain. High 67°, low 55°.
Pressure29.97 inHg
Wind16.2 mph SW
Humidity51%
Visibility—
Dew point42°
Sat, 2467° / 53°0.23
67 °
Barstow, Saturday, 24 October
Rain. High 67°, low 53°.
Pressure30.00 inHg
Wind8.4 mph W
Humidity52%
Visibility—
Dew point42°
Sun, 2570° / 56°0
70 °
Barstow, Sunday, 25 October
Clear. High 70°, low 56°.
Pressure30.03 inHg
Wind4.6 mph W
Humidity42%
Visibility—
Dew point38°
Mon, 2672° / 59°0
72 °
Barstow, Monday, 26 October
Overcast. High 72°, low 59°.
Pressure29.77 inHg
Wind23.8 mph SW
Humidity35%
Visibility—
Dew point37°
Tue, 2765° / 52°0
65 °
Barstow, Tuesday, 27 October
Clear. High 65°, low 52°.
Pressure29.83 inHg
Wind13.2 mph W
Humidity47%
Visibility—
Dew point37°
Wed, 2869° / 56°0
69 °
Barstow, Wednesday, 28 October
Clear. High 69°, low 56°.
Pressure29.97 inHg
Wind17 mph W
Humidity35%
Visibility—
Dew point34°
Thu, 2963° / 56°0.01
63 °
Barstow, Thursday, 29 October
Light rain. High 63°, low 56°.
Pressure29.83 inHg
Wind21.7 mph SW
Humidity53%
Visibility—
Dew point43°
Fri, 3064° / 51°0
64 °
Barstow, Friday, 30 October
Clear. High 64°, low 51°.
Pressure29.97 inHg
Wind8.3 mph W
Humidity45%
Visibility—
Dew point36°
Sat, 3167° / 53°0
67 °
Barstow, Saturday, 31 October
Clear. High 67°, low 53°.
Pressure30.03 inHg
Wind4.9 mph W
Humidity41%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0171° / 47°0
71 °
Barstow, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high71°
Average low47°
Average precipitation0 in
Chance of precipitation5%
Record high83° (2015)
Record low37° (1971)
Mon, 0270° / 48°0
70 °
Barstow, Monday, 2 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0 in
Chance of precipitation0%
Record high82° (2020)
Record low37° (1961)
Tue, 0371° / 47°0
71 °
Barstow, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high71°
Average low47°
Average precipitation0 in
Chance of precipitation2%
Record high82° (2010)
Record low38° (1994)
Wed, 0471° / 48°0.01
71 °
Barstow, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0.01 in
Chance of precipitation3%
Record high83° (2010)
Record low34° (1973)
Thu, 0571° / 47°0
71 °
Barstow, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high71°
Average low47°
Average precipitation0 in
Chance of precipitation2%
Record high83° (2023)
Record low34° (2015)
Fri, 0670° / 48°0
70 °
Barstow, Friday, 6 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0 in
Chance of precipitation2%
Record high81° (2021)
Record low36° (2011)
Sat, 0769° / 46°0.01
69 °
Barstow, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high69°
Average low46°
Average precipitation0.01 in
Chance of precipitation5%
Record high82° (1991)
Record low31° (2011)
Sun, 0868° / 47°0.01
68 °
Barstow, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high68°
Average low47°
Average precipitation0.01 in
Chance of precipitation8%
Record high82° (2006)
Record low36° (1960)
Mon, 0967° / 46°0.02
67 °
Barstow, Monday, 9 November
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.02 in
Chance of precipitation7%
Record high79° (2016)
Record low33° (2020)
Tue, 1066° / 45°0
66 °
Barstow, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high66°
Average low45°
Average precipitation0 in
Chance of precipitation5%
Record high78° (1973)
Record low33° (2020)
Wed, 1166° / 44°0.03
66 °
Barstow, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.03 in
Chance of precipitation7%
Record high80° (1973)
Record low30° (2012)
Thu, 1266° / 45°0.02
66 °
Barstow, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high66°
Average low45°
Average precipitation0.02 in
Chance of precipitation3%
Record high79° (1989)
Record low31° (1985)
Fri, 1366° / 43°0.01
66 °
Barstow, Friday, 13 November
Climate normal for this date — 60-year average.
Average high66°
Average low43°
Average precipitation0.01 in
Chance of precipitation5%
Record high79° (1990)
Record low24° (1985)
Sat, 1465° / 44°0.02
65 °
Barstow, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high65°
Average low44°
Average precipitation0.02 in
Chance of precipitation10%
Record high79° (1967)
Record low26° (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 Barstow, 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 Barstow, 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.