Monthly outlook for Mountain Pass, CA: average high 69°, average low 54.4°. That is 2° below the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 1 days and 0.2 inches. The warmest day looks like 9 October (86.1°), the coolest 13 October (43.6°).
69°/54.4°
Average high / low
−2°
Below normal
2 / 1
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
69°
73.8°
-2.7°
19 October – 28 October
69.1°
69.9°
-0.4°
29 October – 7 November
at normal
65.6°
—
October records over 66 years
94.8°1 October 2024All-time high
24.8°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Yucca Grove (15 mi).
Sat, 1079° / 60°0
79 °
Mountain Pass, Saturday, 10 October
Overcast. High 79°, low 60°.
Pressure29.68 inHg
Wind9 mph SW
Humidity22%
Visibility6.2 mi
Dew point34°
Sun, 1170° / 53°0.55
70 °
Mountain Pass, Sunday, 11 October
Rain. High 70°, low 53°.
Pressure29.47 inHg
Wind19.4 mph S
Humidity74%
Visibility2.3 mi
Dew point53°
Mon, 1260° / 49°0.08
60 °
Mountain Pass, Monday, 12 October
Light rain. High 60°, low 49°.
Pressure29.83 inHg
Wind7.3 mph SW
Humidity65%
Visibility4.6 mi
Dew point46°
Tue, 1356° / 44°0
56 °
Mountain Pass, Tuesday, 13 October
Partly cloudy. High 56°, low 44°.
Pressure30.00 inHg
Wind12.7 mph NW
Humidity59%
Visibility—
Dew point39°
Wed, 1461° / 47°0
61 °
Mountain Pass, Wednesday, 14 October
Clear. High 61°, low 47°.
Pressure30.18 inHg
Wind7.6 mph N
Humidity39%
Visibility—
Dew point31°
Thu, 1566° / 54°0
66 °
Mountain Pass, Thursday, 15 October
Clear. High 66°, low 54°.
Pressure30.12 inHg
Wind13.2 mph NE
Humidity30%
Visibility—
Dew point30°
Fri, 1667° / 54°0
67 °
Mountain Pass, Friday, 16 October
Clear. High 67°, low 54°.
Pressure30.24 inHg
Wind12.6 mph NE
Humidity23%
Visibility—
Dew point23°
Sat, 1771° / 57°0
71 °
Mountain Pass, Saturday, 17 October
Clear. High 71°, low 57°.
Pressure30.21 inHg
Wind6.3 mph NE
Humidity22%
Visibility—
Dew point25°
Sun, 1872° / 58°0
72 °
Mountain Pass, Sunday, 18 October
Clear. High 72°, low 58°.
Pressure30.06 inHg
Wind2.3 mph SE
Humidity24%
Visibility—
Dew point29°
Mon, 1966° / 52°0
66 °
Mountain Pass, Monday, 19 October
Clear. High 66°, low 52°.
Pressure30.12 inHg
Wind5.2 mph NE
Humidity24%
Visibility—
Dew point23°
Tue, 2068° / 53°0
68 °
Mountain Pass, Tuesday, 20 October
Clear. High 68°, low 53°.
Pressure30.06 inHg
Wind3.6 mph NE
Humidity22%
Visibility—
Dew point23°
Wed, 2168° / 54°0
68 °
Mountain Pass, Wednesday, 21 October
Clear. High 68°, low 54°.
Pressure30.03 inHg
Wind5.2 mph NE
Humidity19%
Visibility—
Dew point20°
Thu, 2271° / 55°0
71 °
Mountain Pass, Thursday, 22 October
Clear. High 71°, low 55°.
Pressure30.09 inHg
Wind11.2 mph NE
Humidity19%
Visibility—
Dew point22°
Fri, 2373° / 58°0
73 °
Mountain Pass, Friday, 23 October
Clear. High 73°, low 58°.
Pressure30.03 inHg
Wind5.7 mph NE
Humidity22%
Visibility—
Dew point26°
Sat, 2470° / 60°0
70 °
Mountain Pass, Saturday, 24 October
Partly cloudy. High 70°, low 60°.
Pressure29.97 inHg
Wind5.5 mph E
Humidity27%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2569° / 49°0.01
69 °
Mountain Pass, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high69°
Average low49°
Average precipitation0.01 in
Chance of precipitation5%
Record high80° (1990)
Record low32° (1975)
Mon, 2669° / 48°0
69 °
Mountain Pass, Monday, 26 October
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0 in
Chance of precipitation5%
Record high80° (2008)
Record low32° (2020)
Tue, 2768° / 48°0.02
68 °
Mountain Pass, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high68°
Average low48°
Average precipitation0.02 in
Chance of precipitation7%
Record high82° (2008)
Record low33° (1970)
Wed, 2867° / 47°0.02
67 °
Mountain Pass, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high67°
Average low47°
Average precipitation0.02 in
Chance of precipitation8%
Record high80° (2008)
Record low29° (1970)
Thu, 2966° / 47°0
66 °
Mountain Pass, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0 in
Chance of precipitation3%
Record high80° (2008)
Record low26° (1971)
Fri, 3065° / 46°0.01
65 °
Mountain Pass, Friday, 30 October
Climate normal for this date — 60-year average.
Average high65°
Average low46°
Average precipitation0.01 in
Chance of precipitation8%
Record high79° (2008)
Record low25° (1971)
Sat, 3165° / 45°0.01
65 °
Mountain Pass, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high65°
Average low45°
Average precipitation0.01 in
Chance of precipitation3%
Record high79° (1988)
Record low29° (1972)
Sun, 0166° / 46°0.02
66 °
Mountain Pass, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high66°
Average low46°
Average precipitation0.02 in
Chance of precipitation5%
Record high78° (2020)
Record low29° (1971)
Mon, 0266° / 46°0.02
66 °
Mountain Pass, Monday, 2 November
Climate normal for this date — 60-year average.
Average high66°
Average low46°
Average precipitation0.02 in
Chance of precipitation7%
Record high78° (2009)
Record low33° (2004)
Tue, 0366° / 44°0.01
66 °
Mountain Pass, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.01 in
Chance of precipitation5%
Record high80° (2010)
Record low32° (2022)
Wed, 0466° / 45°0.01
66 °
Mountain Pass, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high66°
Average low45°
Average precipitation0.01 in
Chance of precipitation3%
Record high79° (1988)
Record low30° (2022)
Thu, 0566° / 46°0.01
66 °
Mountain Pass, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high66°
Average low46°
Average precipitation0.01 in
Chance of precipitation3%
Record high79° (2020)
Record low32° (2015)
Fri, 0665° / 45°0
65 °
Mountain Pass, Friday, 6 November
Climate normal for this date — 60-year average.
Average high65°
Average low45°
Average precipitation0 in
Chance of precipitation3%
Record high76° (2007)
Record low32° (2015)
Sat, 0765° / 45°0.01
65 °
Mountain Pass, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high65°
Average low45°
Average precipitation0.01 in
Chance of precipitation5%
Record high77° (2006)
Record low33° (1996)
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 Mountain Pass, 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 Mountain Pass, 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.