Monthly outlook for Ketchum, ID: average high 42.1°, average low 26.5°. That is 1.2° below the climate normal for October. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 31 October (49.4°), the coolest 13 November (18°).
42.1°/26.5°
Average high / low
−1.2°
Below normal
6 / 4
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
44.3°
46°
-0.9°
9 November – 18 November
38.5°
40.7°
-1.2°
19 November – 28 November
at normal
35.4°
—
October records over 66 years
82.6°1 October 2010All-time high
-2.9°28 October 1970All-time low
Climate normals and records are computed from the nearest reference point — Hailey (12 mi).
Sat, 3149° / 34°0.23
49 °
Ketchum, Saturday, 31 October
Rain. High 49°, low 34°.
Pressure30.00 inHg
Wind1.3 mph SE
Humidity94%
Visibility4.2 mi
Dew point35°
Sun, 0138° / 33°0.74
38 °
Ketchum, Sunday, 1 November
Snow. High 38°, low 33°.
Pressure29.83 inHg
Wind0.9 mph NE
Humidity98%
Visibility0.9 mi
Dew point34°
Mon, 0245° / 19°0
45 °
Ketchum, Monday, 2 November
Clear. High 45°, low 19°.
Pressure30.30 inHg
Wind3 mph N
Humidity71%
Visibility6.2 mi
Dew point24°
Tue, 0347° / 22°0
47 °
Ketchum, Tuesday, 3 November
Partly cloudy. High 47°, low 22°.
Pressure30.33 inHg
Wind2.7 mph NW
Humidity53%
Visibility—
Dew point25°
Wed, 0449° / 25°0
49 °
Ketchum, Wednesday, 4 November
Overcast. High 49°, low 25°.
Pressure30.03 inHg
Wind3.1 mph N
Humidity42%
Visibility—
Dew point23°
Thu, 0544° / 31°0
44 °
Ketchum, Thursday, 5 November
Clear. High 44°, low 31°.
Pressure29.91 inHg
Wind5.8 mph NE
Humidity71%
Visibility—
Dew point32°
Fri, 0640° / 27°0.14
40 °
Ketchum, Friday, 6 November
Light snow. High 40°, low 27°.
Pressure29.91 inHg
Wind7.5 mph NW
Humidity97%
Visibility—
Dew point37°
Sat, 0740° / 24°0
40 °
Ketchum, Saturday, 7 November
Clear. High 40°, low 24°.
Pressure30.18 inHg
Wind8.1 mph N
Humidity58%
Visibility—
Dew point21°
Sun, 0845° / 26°0
45 °
Ketchum, Sunday, 8 November
Partly cloudy. High 45°, low 26°.
Pressure30.21 inHg
Wind7 mph N
Humidity49%
Visibility—
Dew point21°
Mon, 0944° / 30°0
44 °
Ketchum, Monday, 9 November
Overcast. High 44°, low 30°.
Pressure30.03 inHg
Wind7.5 mph N
Humidity48%
Visibility—
Dew point22°
Tue, 1040° / 34°0.14
40 °
Ketchum, Tuesday, 10 November
Light snow. High 40°, low 34°.
Pressure29.97 inHg
Wind3.2 mph NE
Humidity83%
Visibility—
Dew point33°
Wed, 1136° / 32°0.84
36 °
Ketchum, Wednesday, 11 November
Snow. High 36°, low 32°.
Pressure29.62 inHg
Wind5.4 mph S
Humidity100%
Visibility—
Dew point36°
Thu, 1236° / 19°0.01
36 °
Ketchum, Thursday, 12 November
Light snow. High 36°, low 19°.
Pressure29.85 inHg
Wind7.9 mph N
Humidity81%
Visibility—
Dew point27°
Fri, 1336° / 18°0
36 °
Ketchum, Friday, 13 November
Clear. High 36°, low 18°.
Pressure30.18 inHg
Wind8.1 mph N
Humidity68%
Visibility—
Dew point23°
Sat, 1439° / 19°0.01
39 °
Ketchum, Saturday, 14 November
Light snow. High 39°, low 19°.
Pressure30.12 inHg
Wind7.7 mph N
Humidity67%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1540° / 20°0.04
40 °
Ketchum, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low20°
Average precipitation0.04 in
Chance of precipitation22%
Record high58° (1999)
Record low-3° (2005)
Mon, 1640° / 22°0.06
40 °
Ketchum, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low22°
Average precipitation0.06 in
Chance of precipitation23%
Record high57° (1999)
Record low-12° (2014)
Tue, 1739° / 22°0.06
39 °
Ketchum, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.06 in
Chance of precipitation33%
Record high55° (2008)
Record low-5° (2000)
Wed, 1838° / 20°0.08
38 °
Ketchum, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low20°
Average precipitation0.08 in
Chance of precipitation27%
Record high55° (2008)
Record low-3° (1964)
Thu, 1938° / 18°0.06
38 °
Ketchum, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.06 in
Chance of precipitation28%
Record high53° (2008)
Record low-10° (1985)
Fri, 2038° / 20°0.06
38 °
Ketchum, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low20°
Average precipitation0.06 in
Chance of precipitation32%
Record high52° (1989)
Record low-7° (2011)
Sat, 2137° / 18°0.06
37 °
Ketchum, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low18°
Average precipitation0.06 in
Chance of precipitation28%
Record high51° (1989)
Record low-12° (1985)
Sun, 2236° / 18°0.1
36 °
Ketchum, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high36°
Average low18°
Average precipitation0.1 in
Chance of precipitation35%
Record high51° (2002)
Record low-13° (1994)
Mon, 2336° / 15°0.07
36 °
Ketchum, Monday, 23 November
Climate normal for this date — 60-year average.
Average high36°
Average low15°
Average precipitation0.07 in
Chance of precipitation23%
Record high50° (2017)
Record low-26° (1985)
Tue, 2436° / 17°0.09
36 °
Ketchum, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high36°
Average low17°
Average precipitation0.09 in
Chance of precipitation32%
Record high53° (1995)
Record low-24° (2010)
Wed, 2534° / 16°0.06
34 °
Ketchum, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high34°
Average low16°
Average precipitation0.06 in
Chance of precipitation38%
Record high49° (1995)
Record low-22° (2010)
Thu, 2633° / 14°0.06
33 °
Ketchum, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high33°
Average low14°
Average precipitation0.06 in
Chance of precipitation25%
Record high48° (2017)
Record low-11° (1985)
Fri, 2733° / 14°0.06
33 °
Ketchum, Friday, 27 November
Climate normal for this date — 60-year average.
Average high33°
Average low14°
Average precipitation0.06 in
Chance of precipitation27%
Record high49° (2014)
Record low-8° (1994)
Sat, 2833° / 14°0.05
33 °
Ketchum, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high33°
Average low14°
Average precipitation0.05 in
Chance of precipitation28%
Record high46° (2013)
Record low-13° (1979)
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 Ketchum, ID 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 Ketchum, ID 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.