Monthly outlook for Holbrook Summit, ID: average high 55.1°, average low 39°. That is 1.6° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 19 October (64.9°), the coolest 24 October (31.8°).
55.1°/39°
Average high / low
+1.6°
Above normal
5 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
57.3°
54.5°
+1.6°
29 October – 7 November
51.3°
48°
+1.8°
8 November – 17 November
at normal
42.7°
—
October records over 66 years
84.9°2 October 2010All-time high
5.7°27 October 1970All-time low
Climate normals and records are computed from the nearest reference point — Daniels (14 mi).
Tue, 2065° / 38°0.09
65 °
Holbrook Summit, Tuesday, 20 October
Light rain. High 65°, low 38°.
Pressure30.09 inHg
Wind6.3 mph SE
Humidity77%
Visibility6.2 mi
Dew point48°
Wed, 2164° / 40°0.03
64 °
Holbrook Summit, Wednesday, 21 October
Light rain. High 64°, low 40°.
Pressure30.06 inHg
Wind4 mph SE
Humidity60%
Visibility6.2 mi
Dew point45°
Thu, 2264° / 48°0
64 °
Holbrook Summit, Thursday, 22 October
Light rain. High 64°, low 48°.
Pressure29.91 inHg
Wind6 mph SE
Humidity56%
Visibility6.2 mi
Dew point45°
Fri, 2348° / 37°1.25
48 °
Holbrook Summit, Friday, 23 October
Rain. High 48°, low 37°.
Pressure29.91 inHg
Wind9.3 mph NW
Humidity95%
Visibility—
Dew point42°
Sat, 2449° / 32°0
49 °
Holbrook Summit, Saturday, 24 October
Clear. High 49°, low 32°.
Pressure30.24 inHg
Wind6 mph N
Humidity66%
Visibility—
Dew point31°
Sun, 2553° / 35°0
53 °
Holbrook Summit, Sunday, 25 October
Clear. High 53°, low 35°.
Pressure30.33 inHg
Wind3.8 mph S
Humidity42%
Visibility—
Dew point25°
Mon, 2654° / 37°0
54 °
Holbrook Summit, Monday, 26 October
Clear. High 54°, low 37°.
Pressure30.12 inHg
Wind6 mph S
Humidity39%
Visibility—
Dew point25°
Tue, 2756° / 37°0
56 °
Holbrook Summit, Tuesday, 27 October
Clear. High 56°, low 37°.
Pressure30.15 inHg
Wind4.5 mph NE
Humidity36%
Visibility—
Dew point23°
Wed, 2855° / 37°0
55 °
Holbrook Summit, Wednesday, 28 October
Overcast. High 55°, low 37°.
Pressure30.12 inHg
Wind7.1 mph S
Humidity36%
Visibility—
Dew point22°
Thu, 2956° / 39°0
56 °
Holbrook Summit, Thursday, 29 October
Overcast. High 56°, low 39°.
Pressure29.94 inHg
Wind6.5 mph S
Humidity37%
Visibility—
Dew point26°
Fri, 3050° / 43°0.04
50 °
Holbrook Summit, Friday, 30 October
Light rain. High 50°, low 43°.
Pressure29.83 inHg
Wind10.3 mph SW
Humidity69%
Visibility—
Dew point38°
Sat, 3153° / 39°0.03
53 °
Holbrook Summit, Saturday, 31 October
Light rain. High 53°, low 39°.
Pressure29.94 inHg
Wind7.4 mph SW
Humidity58%
Visibility—
Dew point34°
Sun, 0157° / 39°0.2
57 °
Holbrook Summit, Sunday, 1 November
Rain. High 57°, low 39°.
Pressure29.97 inHg
Wind7.4 mph SE
Humidity45%
Visibility—
Dew point30°
Mon, 0246° / 42°0.36
46 °
Holbrook Summit, Monday, 2 November
Rain. High 46°, low 42°.
Pressure30.09 inHg
Wind13.2 mph SW
Humidity84%
Visibility—
Dew point39°
Tue, 0347° / 40°0.03
47 °
Holbrook Summit, Tuesday, 3 November
Light rain. High 47°, low 40°.
Pressure30.09 inHg
Wind6.3 mph N
Humidity72%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0448° / 32°0.04
48 °
Holbrook Summit, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation22%
Record high63° (2020)
Record low18° (2003)
Thu, 0548° / 33°0.05
48 °
Holbrook Summit, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.05 in
Chance of precipitation32%
Record high64° (1980)
Record low7° (1961)
Fri, 0647° / 33°0.04
47 °
Holbrook Summit, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation27%
Record high65° (1999)
Record low2° (1971)
Sat, 0747° / 32°0.08
47 °
Holbrook Summit, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.08 in
Chance of precipitation37%
Record high64° (1999)
Record low14° (2000)
Sun, 0845° / 31°0.09
45 °
Holbrook Summit, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation35%
Record high61° (1976)
Record low13° (2017)
Mon, 0944° / 30°0.08
44 °
Holbrook Summit, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation33%
Record high60° (2016)
Record low17° (1966)
Tue, 1044° / 30°0.05
44 °
Holbrook Summit, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.05 in
Chance of precipitation30%
Record high63° (2016)
Record low6° (2000)
Wed, 1144° / 30°0.06
44 °
Holbrook Summit, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.06 in
Chance of precipitation28%
Record high61° (1989)
Record low6° (2000)
Thu, 1244° / 29°0.07
44 °
Holbrook Summit, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.07 in
Chance of precipitation28%
Record high63° (1999)
Record low10° (2000)
Fri, 1343° / 29°0.06
43 °
Holbrook Summit, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.06 in
Chance of precipitation37%
Record high62° (1999)
Record low5° (1978)
Sat, 1441° / 28°0.07
41 °
Holbrook Summit, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation27%
Record high64° (1999)
Record low-5° (1978)
Sun, 1542° / 27°0.02
42 °
Holbrook Summit, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.02 in
Chance of precipitation20%
Record high62° (1999)
Record low-5° (1978)
Mon, 1641° / 28°0.04
41 °
Holbrook Summit, Monday, 16 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.04 in
Chance of precipitation27%
Record high62° (1999)
Record low2° (2014)
Tue, 1740° / 27°0.07
40 °
Holbrook Summit, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation30%
Record high54° (1995)
Record low-3° (2014)
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 Holbrook Summit, 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 Holbrook Summit, 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.