As of 10:26 MDT

Weather in Ketchum, ID

51°

Ketchum, Wednesday, 21 October, 10:26

Overcast. Feels like 50°. High 64°, low 40°.

Pressure30.15 inHg

Wind1 mph NE

Humidity87%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Ketchum, ID: average high 48.3°, average low 32.5°. That is 0.6° below the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 21 October (64.1°), the coolest 5 November (22.5°).

48.3°/32.5°

Average high / low

−0.6°

Below normal

5 / 3

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
21 October – 30 October	50.6°	51°	-0.2°
31 October – 9 November	44.5°	45.5°	-0.5°
10 November – 19 November	at normal	40.2°	—

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).

Thu, 2263° / 42°

0.42

63 °

Ketchum, Thursday, 22 October

Rain. High 63°, low 42°.

Pressure29.91 inHg

Wind6.1 mph SE

Humidity76%

Visibility6.2 mi

Dew point43°

Fri, 2346° / 33°

0.51

46 °

Ketchum, Friday, 23 October

Rain. High 46°, low 33°.

Pressure29.83 inHg

Wind7.4 mph SE

Humidity99%

Visibility2.1 mi

Dew point36°

Sat, 2444° / 30°

44 °

Ketchum, Saturday, 24 October

Overcast. High 44°, low 30°.

Pressure30.15 inHg

Wind1.8 mph S

Humidity63%

Visibility6.2 mi

Dew point29°

Sun, 2549° / 27°

49 °

Ketchum, Sunday, 25 October

Clear. High 49°, low 27°.

Pressure30.12 inHg

Wind4.7 mph S

Humidity56%

Visibility—

Dew point28°

Mon, 2648° / 30°

48 °

Ketchum, Monday, 26 October

Overcast. High 48°, low 30°.

Pressure30.24 inHg

Wind6.3 mph S

Humidity58%

Visibility—

Dew point29°

Tue, 2750° / 34°

0.01

50 °

Ketchum, Tuesday, 27 October

Light rain. High 50°, low 34°.

Pressure30.00 inHg

Wind6.3 mph SW

Humidity64%

Visibility—

Dew point35°

Wed, 2846° / 33°

46 °

Ketchum, Wednesday, 28 October

Overcast. High 46°, low 33°.

Pressure30.12 inHg

Wind5.9 mph N

Humidity50%

Visibility—

Dew point26°

Thu, 2951° / 36°

51 °

Ketchum, Thursday, 29 October

Overcast. High 51°, low 36°.

Pressure30.00 inHg

Wind5.9 mph N

Humidity68%

Visibility—

Dew point36°

Fri, 3044° / 35°

0.01

44 °

Ketchum, Friday, 30 October

Light snow. High 44°, low 35°.

Pressure29.77 inHg

Wind5.6 mph N

Humidity89%

Visibility—

Dew point38°

Sat, 3141° / 27°

0.06

41 °

Ketchum, Saturday, 31 October

Snow. High 41°, low 27°.

Pressure29.83 inHg

Wind8.1 mph W

Humidity49%

Visibility—

Dew point19°

Sun, 0144° / 28°

44 °

Ketchum, Sunday, 1 November

Overcast. High 44°, low 28°.

Pressure30.18 inHg

Wind5.8 mph N

Humidity38%

Visibility—

Dew point15°

Mon, 0248° / 33°

48 °

Ketchum, Monday, 2 November

Overcast. High 48°, low 33°.

Pressure30.18 inHg

Wind5.2 mph N

Humidity35%

Visibility—

Dew point18°

Tue, 0349° / 34°

49 °

Ketchum, Tuesday, 3 November

Overcast. High 49°, low 34°.

Pressure30.09 inHg

Wind4.7 mph S

Humidity34%

Visibility—

Dew point19°

Wed, 0447° / 35°

0.02

47 °

Ketchum, Wednesday, 4 November

Light snow. High 47°, low 35°.

Pressure29.91 inHg

Wind5.6 mph SW

Humidity50%

Visibility—

Dew point26°

Thu, 0537° / 22°

0.37

37 °

Ketchum, Thursday, 5 November

Snow. High 37°, low 22°.

Pressure29.77 inHg

Wind11.2 mph W

Humidity67%

Visibility—

Dew point27°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 0645° / 28°

0.07

45 °

Ketchum, Friday, 6 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.07 in

Chance of precipitation28%

Record high62° (1999)

Record low5° (2008)

Sat, 0745° / 27°

0.04

45 °

Ketchum, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.04 in

Chance of precipitation25%

Record high61° (1999)

Record low6° (2015)

Sun, 0843° / 26°

0.07

43 °

Ketchum, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°

Average low26°

Average precipitation0.07 in

Chance of precipitation32%

Record high58° (1976)

Record low-6° (1994)

Mon, 0942° / 25°

0.07

42 °

Ketchum, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°

Average low25°

Average precipitation0.07 in

Chance of precipitation32%

Record high59° (2016)

Record low4° (2005)

Tue, 1042° / 24°

0.04

42 °

Ketchum, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high42°

Average low24°

Average precipitation0.04 in

Chance of precipitation25%

Record high61° (2016)

Record low-2° (1998)

Wed, 1142° / 23°

0.06

42 °

Ketchum, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high42°

Average low23°

Average precipitation0.06 in

Chance of precipitation30%

Record high59° (2016)

Record low-6° (1975)

Thu, 1242° / 23°

0.05

42 °

Ketchum, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°

Average low23°

Average precipitation0.05 in

Chance of precipitation27%

Record high60° (1999)

Record low-4° (1975)

Fri, 1341° / 23°

0.07

41 °

Ketchum, Friday, 13 November

Climate normal for this date — 60-year average.

Average high41°

Average low23°

Average precipitation0.07 in

Chance of precipitation27%

Record high60° (1999)

Record low0° (1961)

Sat, 1440° / 22°

0.05

40 °

Ketchum, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high40°

Average low22°

Average precipitation0.05 in

Chance of precipitation22%

Record high61° (1999)

Record low-7° (1994)

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)

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.