Monthly outlook for Barstow, CA: average high 76.1°, average low 61°. That is 0.4° below the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 1 days and 0.1 inches. The warmest day looks like 26 October (83.8°), the coolest 12 October (47.6°).
76.1°/61°
Average high / low
−0.4°
Below normal
2 / 1
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
73°
78°
-2.8°
21 October – 30 October
81.2°
73.5°
+4.2°
31 October – 9 November
at normal
69.7°
—
October records over 66 years
101.5°1 October 2024All-time high
28.6°29 October 1971All-time low
Mon, 1256° / 48°0.11
56 °
Barstow, Monday, 12 October
Light rain. High 56°, low 48°.
Pressure29.83 inHg
Wind8.5 mph W
Humidity61%
Visibility6.2 mi
Dew point48°
Tue, 1365° / 49°0
65 °
Barstow, Tuesday, 13 October
Light rain. High 65°, low 49°.
Pressure30.03 inHg
Wind8.4 mph N
Humidity49%
Visibility6.2 mi
Dew point42°
Wed, 1471° / 48°0
71 °
Barstow, Wednesday, 14 October
Clear. High 71°, low 48°.
Pressure30.12 inHg
Wind4.4 mph W
Humidity39%
Visibility6.2 mi
Dew point40°
Thu, 1577° / 54°0
77 °
Barstow, Thursday, 15 October
Clear. High 77°, low 54°.
Pressure30.15 inHg
Wind12.1 mph NE
Humidity36%
Visibility—
Dew point41°
Fri, 1678° / 60°0
78 °
Barstow, Friday, 16 October
Clear. High 78°, low 60°.
Pressure30.12 inHg
Wind15 mph E
Humidity33%
Visibility—
Dew point42°
Sat, 1779° / 66°0
79 °
Barstow, Saturday, 17 October
Clear. High 79°, low 66°.
Pressure30.15 inHg
Wind12.7 mph E
Humidity25%
Visibility—
Dew point37°
Sun, 1880° / 66°0
80 °
Barstow, Sunday, 18 October
Clear. High 80°, low 66°.
Pressure30.06 inHg
Wind4.6 mph E
Humidity23%
Visibility—
Dew point34°
Mon, 1983° / 67°0
83 °
Barstow, Monday, 19 October
Clear. High 83°, low 67°.
Pressure30.03 inHg
Wind11.9 mph SW
Humidity22%
Visibility—
Dew point33°
Tue, 2078° / 65°0
78 °
Barstow, Tuesday, 20 October
Clear. High 78°, low 65°.
Pressure29.97 inHg
Wind7.9 mph SW
Humidity23%
Visibility—
Dew point31°
Wed, 2179° / 64°0
79 °
Barstow, Wednesday, 21 October
Clear. High 79°, low 64°.
Pressure29.91 inHg
Wind4.7 mph W
Humidity25%
Visibility—
Dew point33°
Thu, 2280° / 64°0
80 °
Barstow, Thursday, 22 October
Clear. High 80°, low 64°.
Pressure29.94 inHg
Wind8.1 mph NE
Humidity20%
Visibility—
Dew point29°
Fri, 2381° / 66°0
81 °
Barstow, Friday, 23 October
Clear. High 81°, low 66°.
Pressure29.94 inHg
Wind7.2 mph NE
Humidity18%
Visibility—
Dew point29°
Sat, 2481° / 68°0
81 °
Barstow, Saturday, 24 October
Overcast. High 81°, low 68°.
Pressure29.94 inHg
Wind4.9 mph NW
Humidity19%
Visibility—
Dew point30°
Sun, 2582° / 68°0
82 °
Barstow, Sunday, 25 October
Partly cloudy. High 82°, low 68°.
Pressure30.03 inHg
Wind10.3 mph E
Humidity20%
Visibility—
Dew point32°
Mon, 2684° / 70°0
84 °
Barstow, Monday, 26 October
Partly cloudy. High 84°, low 70°.
Pressure29.94 inHg
Wind13.2 mph NE
Humidity22%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2773° / 50°0.02
73 °
Barstow, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.02 in
Chance of precipitation3%
Record high86° (2024)
Record low38° (1970)
Wed, 2872° / 49°0.01
72 °
Barstow, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.01 in
Chance of precipitation7%
Record high85° (2003)
Record low35° (1970)
Thu, 2971° / 48°0
71 °
Barstow, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0 in
Chance of precipitation0%
Record high86° (2008)
Record low29° (1971)
Fri, 3070° / 48°0.01
70 °
Barstow, Friday, 30 October
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.01 in
Chance of precipitation7%
Record high82° (2008)
Record low30° (1971)
Sat, 3170° / 47°0
70 °
Barstow, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0 in
Chance of precipitation2%
Record high83° (1988)
Record low29° (2019)
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)
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.