Monthly outlook for Mount Shasta, CA: average high 57.8°, average low 40.8°. That is 1.4° below the climate normal for October. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 4 days and 2.6 inches. The warmest day looks like 25 October (76.9°), the coolest 1 November (33.7°).
57.8°/40.8°
Average high / low
−1.4°
Below normal
6 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
63.9°
61.8°
+1.1°
29 October – 7 November
47.7°
56.8°
-5°
8 November – 17 November
at normal
50.9°
—
October records over 66 years
91.4°1 October 2020All-time high
24.1°27 October 2004All-time low
Tue, 2065° / 36°0.01
65 °
Mount Shasta, Tuesday, 20 October
Light rain. High 65°, low 36°.
Pressure29.91 inHg
Wind11.2 mph SE
Humidity37%
Visibility6.2 mi
Dew point28°
Wed, 2165° / 46°0.29
65 °
Mount Shasta, Wednesday, 21 October
Rain. High 65°, low 46°.
Pressure29.88 inHg
Wind1.1 mph S
Humidity33%
Visibility6.2 mi
Dew point33°
Thu, 2249° / 42°0.45
49 °
Mount Shasta, Thursday, 22 October
Rain. High 49°, low 42°.
Pressure29.97 inHg
Wind7.3 mph NW
Humidity89%
Visibility3.8 mi
Dew point42°
Fri, 2345° / 35°0
45 °
Mount Shasta, Friday, 23 October
Partly cloudy. High 45°, low 35°.
Pressure30.33 inHg
Wind9.3 mph N
Humidity80%
Visibility—
Dew point34°
Sat, 2460° / 35°0
60 °
Mount Shasta, Saturday, 24 October
Overcast. High 60°, low 35°.
Pressure30.00 inHg
Wind6.7 mph SE
Humidity38%
Visibility—
Dew point27°
Sun, 2577° / 50°0
77 °
Mount Shasta, Sunday, 25 October
Mostly clear. High 77°, low 50°.
Pressure30.12 inHg
Wind6.5 mph N
Humidity14%
Visibility—
Dew point18°
Mon, 2676° / 51°0
76 °
Mount Shasta, Monday, 26 October
Clear. High 76°, low 51°.
Pressure29.94 inHg
Wind4.6 mph N
Humidity14%
Visibility—
Dew point17°
Tue, 2773° / 51°0
73 °
Mount Shasta, Tuesday, 27 October
Clear. High 73°, low 51°.
Pressure29.91 inHg
Wind4.5 mph S
Humidity15%
Visibility—
Dew point17°
Wed, 2866° / 44°0
66 °
Mount Shasta, Wednesday, 28 October
Partly cloudy. High 66°, low 44°.
Pressure29.91 inHg
Wind9.1 mph S
Humidity25%
Visibility—
Dew point25°
Thu, 2945° / 41°0.1
45 °
Mount Shasta, Thursday, 29 October
Light rain. High 45°, low 41°.
Pressure29.85 inHg
Wind7.8 mph S
Humidity89%
Visibility—
Dew point41°
Fri, 3051° / 38°0.05
51 °
Mount Shasta, Friday, 30 October
Light rain. High 51°, low 38°.
Pressure29.91 inHg
Wind6.2 mph S
Humidity71%
Visibility—
Dew point37°
Sat, 3157° / 36°0
57 °
Mount Shasta, Saturday, 31 October
Partly cloudy. High 57°, low 36°.
Pressure30.00 inHg
Wind3.2 mph S
Humidity42%
Visibility—
Dew point27°
Sun, 0146° / 34°0.07
46 °
Mount Shasta, Sunday, 1 November
Light snow. High 46°, low 34°.
Pressure30.12 inHg
Wind7.3 mph N
Humidity90%
Visibility—
Dew point37°
Mon, 0249° / 36°0.01
49 °
Mount Shasta, Monday, 2 November
Light snow. High 49°, low 36°.
Pressure30.06 inHg
Wind10.2 mph S
Humidity53%
Visibility—
Dew point29°
Tue, 0339° / 34°0.93
39 °
Mount Shasta, Tuesday, 3 November
Snow. High 39°, low 34°.
Pressure29.97 inHg
Wind7.1 mph S
Humidity99%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0458° / 41°0.13
58 °
Mount Shasta, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.13 in
Chance of precipitation27%
Record high75° (1976)
Record low29° (2011)
Thu, 0555° / 40°0.22
55 °
Mount Shasta, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.22 in
Chance of precipitation32%
Record high76° (2020)
Record low26° (2017)
Fri, 0654° / 40°0.2
54 °
Mount Shasta, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.2 in
Chance of precipitation45%
Record high72° (2019)
Record low31° (2024)
Sat, 0754° / 39°0.27
54 °
Mount Shasta, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.27 in
Chance of precipitation40%
Record high74° (1991)
Record low27° (2011)
Sun, 0853° / 38°0.22
53 °
Mount Shasta, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.22 in
Chance of precipitation37%
Record high71° (2014)
Record low20° (1994)
Mon, 0951° / 37°0.24
51 °
Mount Shasta, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.24 in
Chance of precipitation42%
Record high71° (2019)
Record low20° (1998)
Tue, 1051° / 37°0.22
51 °
Mount Shasta, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.22 in
Chance of precipitation37%
Record high69° (2019)
Record low17° (1985)
Wed, 1152° / 37°0.24
52 °
Mount Shasta, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.24 in
Chance of precipitation38%
Record high68° (1991)
Record low11° (1985)
Thu, 1252° / 37°0.21
52 °
Mount Shasta, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.21 in
Chance of precipitation40%
Record high67° (2021)
Record low5° (1985)
Fri, 1351° / 37°0.35
51 °
Mount Shasta, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.35 in
Chance of precipitation37%
Record high73° (1995)
Record low6° (1985)
Sat, 1451° / 36°0.18
51 °
Mount Shasta, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.18 in
Chance of precipitation35%
Record high74° (1995)
Record low15° (1964)
Sun, 1550° / 37°0.22
50 °
Mount Shasta, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.22 in
Chance of precipitation42%
Record high71° (2008)
Record low14° (1964)
Mon, 1649° / 36°0.27
49 °
Mount Shasta, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.27 in
Chance of precipitation45%
Record high73° (2008)
Record low14° (1964)
Tue, 1749° / 36°0.26
49 °
Mount Shasta, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.26 in
Chance of precipitation40%
Record high71° (2019)
Record low18° (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 Mount Shasta, 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 Mount Shasta, 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.