Monthly outlook for Holbrook Summit, ID: average high 53.7°, average low 38.5°. That is 0.1° below the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (63°), the coolest 16 October (33.5°).
53.7°/38.5°
Average high / low
−0.1°
Below normal
3 / 4
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
57°
56.2°
+0.4°
26 October – 4 November
48.2°
49.3°
-0.6°
5 November – 14 November
at normal
44.6°
—
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).
Sat, 1763° / 37°0
63 °
Holbrook Summit, Saturday, 17 October
Clear. High 63°, low 37°.
Pressure30.33 inHg
Wind5.2 mph S
Humidity52%
Visibility6.2 mi
Dew point38°
Sun, 1861° / 40°0
61 °
Holbrook Summit, Sunday, 18 October
Clear. High 61°, low 40°.
Pressure30.12 inHg
Wind3.6 mph SE
Humidity46%
Visibility6.2 mi
Dew point35°
Mon, 1962° / 40°0
62 °
Holbrook Summit, Monday, 19 October
Clear. High 62°, low 40°.
Pressure30.03 inHg
Wind4 mph SE
Humidity48%
Visibility6.2 mi
Dew point37°
Tue, 2060° / 42°0.02
60 °
Holbrook Summit, Tuesday, 20 October
Light rain. High 60°, low 42°.
Pressure30.00 inHg
Wind5.8 mph SE
Humidity66%
Visibility6.2 mi
Dew point45°
Wed, 2162° / 43°0.01
62 °
Holbrook Summit, Wednesday, 21 October
Light rain. High 62°, low 43°.
Pressure30.06 inHg
Wind3.7 mph SE
Humidity59%
Visibility—
Dew point42°
Thu, 2261° / 47°0.03
61 °
Holbrook Summit, Thursday, 22 October
Light rain. High 61°, low 47°.
Pressure29.94 inHg
Wind11.1 mph SW
Humidity55%
Visibility—
Dew point42°
Fri, 2349° / 41°0.6
49 °
Holbrook Summit, Friday, 23 October
Rain. High 49°, low 41°.
Pressure29.91 inHg
Wind6.3 mph NE
Humidity74%
Visibility—
Dew point36°
Sat, 2448° / 36°0
48 °
Holbrook Summit, Saturday, 24 October
Overcast. High 48°, low 36°.
Pressure30.00 inHg
Wind11.4 mph E
Humidity54%
Visibility—
Dew point29°
Sun, 2543° / 37°0.01
43 °
Holbrook Summit, Sunday, 25 October
Light rain. High 43°, low 37°.
Pressure30.06 inHg
Wind7.9 mph S
Humidity54%
Visibility—
Dew point27°
Mon, 2650° / 36°0
50 °
Holbrook Summit, Monday, 26 October
Overcast. High 50°, low 36°.
Pressure30.18 inHg
Wind4 mph S
Humidity57%
Visibility—
Dew point30°
Tue, 2752° / 35°0
52 °
Holbrook Summit, Tuesday, 27 October
Clear. High 52°, low 35°.
Pressure30.15 inHg
Wind4.4 mph NE
Humidity43%
Visibility—
Dew point24°
Wed, 2851° / 38°0.09
51 °
Holbrook Summit, Wednesday, 28 October
Light rain. High 51°, low 38°.
Pressure29.71 inHg
Wind9.7 mph NE
Humidity33%
Visibility—
Dew point20°
Thu, 2939° / 36°0.51
39 °
Holbrook Summit, Thursday, 29 October
Snow. High 39°, low 36°.
Pressure29.83 inHg
Wind6 mph NW
Humidity79%
Visibility—
Dew point31°
Fri, 3046° / 37°0.03
46 °
Holbrook Summit, Friday, 30 October
Light rain. High 46°, low 37°.
Pressure30.15 inHg
Wind3.6 mph E
Humidity66%
Visibility—
Dew point32°
Sat, 3151° / 35°0
51 °
Holbrook Summit, Saturday, 31 October
Clear. High 51°, low 35°.
Pressure30.27 inHg
Wind5.9 mph S
Humidity50%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0148° / 32°0.04
48 °
Holbrook Summit, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (1965)
Record low8° (1971)
Mon, 0247° / 32°0.05
47 °
Holbrook Summit, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (1965)
Record low1° (1991)
Tue, 0348° / 31°0.04
48 °
Holbrook Summit, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (1962)
Record low3° (1991)
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)
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.