Monthly outlook for Klamath, CA: average high 66.7°, average low 48.5°. That is 1.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 2.8 inches. The warmest day looks like 15 October (74°), the coolest 12 October (41.8°).
66.7°/48.5°
Average high / low
+1.3°
Above normal
1 / 4
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
67.2°
65.3°
+1°
20 October – 29 October
66°
62.2°
+2.1°
30 October – 8 November
at normal
59.7°
—
October records over 66 years
92.3°10 October 1991All-time high
36.7°12 October 2021All-time low
Sun, 1165° / 44°0
65 °
Klamath, Sunday, 11 October
Clear. High 65°, low 44°.
Pressure29.65 inHg
Wind12.3 mph N
Humidity34%
Visibility6.2 mi
Dew point32°
Mon, 1264° / 42°0
64 °
Klamath, Monday, 12 October
Clear. High 64°, low 42°.
Pressure29.91 inHg
Wind8.6 mph NW
Humidity32%
Visibility6.2 mi
Dew point34°
Tue, 1362° / 44°0
62 °
Klamath, Tuesday, 13 October
Clear. High 62°, low 44°.
Pressure30.09 inHg
Wind2.7 mph W
Humidity48%
Visibility6.2 mi
Dew point42°
Wed, 1467° / 48°0
67 °
Klamath, Wednesday, 14 October
Clear. High 67°, low 48°.
Pressure30.09 inHg
Wind2.3 mph W
Humidity55%
Visibility6.2 mi
Dew point48°
Thu, 1574° / 50°0
74 °
Klamath, Thursday, 15 October
Clear. High 74°, low 50°.
Pressure30.09 inHg
Wind3.7 mph NW
Humidity54%
Visibility—
Dew point53°
Fri, 1674° / 54°0
74 °
Klamath, Friday, 16 October
Clear. High 74°, low 54°.
Pressure30.12 inHg
Wind6 mph W
Humidity35%
Visibility—
Dew point42°
Sat, 1770° / 53°0
70 °
Klamath, Saturday, 17 October
Overcast. High 70°, low 53°.
Pressure30.06 inHg
Wind4 mph W
Humidity39%
Visibility—
Dew point42°
Sun, 1869° / 52°0
69 °
Klamath, Sunday, 18 October
Clear. High 69°, low 52°.
Pressure30.12 inHg
Wind6.2 mph NW
Humidity41%
Visibility—
Dew point42°
Mon, 1966° / 51°0.01
66 °
Klamath, Monday, 19 October
Light rain. High 66°, low 51°.
Pressure30.12 inHg
Wind5.2 mph SE
Humidity47%
Visibility—
Dew point43°
Tue, 2061° / 46°0.06
61 °
Klamath, Tuesday, 20 October
Light rain. High 61°, low 46°.
Pressure30.18 inHg
Wind5.7 mph W
Humidity62%
Visibility—
Dew point47°
Wed, 2164° / 44°0
64 °
Klamath, Wednesday, 21 October
Partly cloudy. High 64°, low 44°.
Pressure30.03 inHg
Wind5.8 mph W
Humidity39%
Visibility—
Dew point36°
Thu, 2269° / 50°0
69 °
Klamath, Thursday, 22 October
Clear. High 69°, low 50°.
Pressure30.12 inHg
Wind4.4 mph W
Humidity30%
Visibility—
Dew point34°
Fri, 2367° / 51°0
67 °
Klamath, Friday, 23 October
Overcast. High 67°, low 51°.
Pressure30.06 inHg
Wind4.9 mph W
Humidity31%
Visibility—
Dew point33°
Sat, 2467° / 51°0
67 °
Klamath, Saturday, 24 October
Partly cloudy. High 67°, low 51°.
Pressure29.94 inHg
Wind4.6 mph W
Humidity32%
Visibility—
Dew point35°
Sun, 2567° / 49°0
67 °
Klamath, Sunday, 25 October
Partly cloudy. High 67°, low 49°.
Pressure30.03 inHg
Wind5.9 mph W
Humidity33%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2662° / 49°0.22
62 °
Klamath, Monday, 26 October
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.22 in
Chance of precipitation45%
Record high85° (2003)
Record low37° (2023)
Tue, 2762° / 48°0.17
62 °
Klamath, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high62°
Average low48°
Average precipitation0.17 in
Chance of precipitation30%
Record high84° (2003)
Record low37° (2025)
Wed, 2860° / 48°0.22
60 °
Klamath, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.22 in
Chance of precipitation37%
Record high79° (2003)
Record low38° (1971)
Thu, 2960° / 48°0.22
60 °
Klamath, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.22 in
Chance of precipitation30%
Record high75° (1993)
Record low38° (1971)
Fri, 3060° / 47°0.24
60 °
Klamath, Friday, 30 October
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.24 in
Chance of precipitation38%
Record high73° (1965)
Record low39° (2002)
Sat, 3161° / 48°0.18
61 °
Klamath, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.18 in
Chance of precipitation32%
Record high78° (1966)
Record low38° (2019)
Sun, 0161° / 48°0.24
61 °
Klamath, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.24 in
Chance of precipitation37%
Record high76° (1966)
Record low40° (1984)
Mon, 0261° / 48°0.22
61 °
Klamath, Monday, 2 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.22 in
Chance of precipitation35%
Record high72° (1967)
Record low39° (1971)
Tue, 0361° / 48°0.21
61 °
Klamath, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.21 in
Chance of precipitation30%
Record high74° (1986)
Record low34° (2022)
Wed, 0460° / 48°0.27
60 °
Klamath, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.27 in
Chance of precipitation42%
Record high74° (2019)
Record low38° (2017)
Thu, 0559° / 48°0.33
59 °
Klamath, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.33 in
Chance of precipitation42%
Record high76° (2012)
Record low38° (2017)
Fri, 0658° / 48°0.42
58 °
Klamath, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.42 in
Chance of precipitation50%
Record high72° (1978)
Record low39° (2017)
Sat, 0758° / 47°0.29
58 °
Klamath, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.29 in
Chance of precipitation47%
Record high69° (1991)
Record low37° (2017)
Sun, 0858° / 46°0.3
58 °
Klamath, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.3 in
Chance of precipitation47%
Record high71° (2025)
Record low38° (2021)
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 Klamath, 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 Klamath, 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.