Monthly outlook for Mount Idaho, ID: average high 55.2°, average low 37.7°. That is 2.5° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 7 days and 1.6 inches. The warmest day looks like 5 November (67.3°), the coolest 24 October (28.2°).
55.2°/37.7°
Average high / low
+2.5°
Above normal
6 / 7
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
52.1°
52°
+0°
1 November – 10 November
60.4°
47.2°
+7.4°
11 November – 20 November
at normal
43.2°
—
October records over 66 years
85.5°1 October 1992All-time high
1.9°9 October 1985All-time low
Climate normals and records are computed from the nearest reference point — Grangeville (2 mi).
Fri, 2350° / 33°0.39
50 °
Mount Idaho, Friday, 23 October
Rain. High 50°, low 33°.
Pressure30.12 inHg
Wind4.5 mph E
Humidity85%
Visibility6.2 mi
Dew point40°
Sat, 2453° / 28°0
53 °
Mount Idaho, Saturday, 24 October
Clear. High 53°, low 28°.
Pressure30.24 inHg
Wind2.1 mph N
Humidity54%
Visibility6.2 mi
Dew point33°
Sun, 2559° / 33°0
59 °
Mount Idaho, Sunday, 25 October
Clear. High 59°, low 33°.
Pressure30.06 inHg
Wind1.3 mph N
Humidity50%
Visibility6.2 mi
Dew point37°
Mon, 2657° / 38°0.11
57 °
Mount Idaho, Monday, 26 October
Light rain. High 57°, low 38°.
Pressure29.97 inHg
Wind5.4 mph E
Humidity59%
Visibility—
Dew point37°
Tue, 2749° / 37°0.24
49 °
Mount Idaho, Tuesday, 27 October
Rain. High 49°, low 37°.
Pressure30.15 inHg
Wind8.9 mph SW
Humidity67%
Visibility—
Dew point35°
Wed, 2839° / 36°0.4
39 °
Mount Idaho, Wednesday, 28 October
Rain. High 39°, low 36°.
Pressure30.18 inHg
Wind2.7 mph N
Humidity96%
Visibility—
Dew point36°
Thu, 2946° / 35°0
46 °
Mount Idaho, Thursday, 29 October
Overcast. High 46°, low 35°.
Pressure30.15 inHg
Wind3.6 mph S
Humidity82%
Visibility—
Dew point36°
Fri, 3052° / 34°0
52 °
Mount Idaho, Friday, 30 October
Clear. High 52°, low 34°.
Pressure29.94 inHg
Wind4.3 mph N
Humidity55%
Visibility—
Dew point30°
Sat, 3152° / 35°0
52 °
Mount Idaho, Saturday, 31 October
Overcast. High 52°, low 35°.
Pressure30.03 inHg
Wind4.5 mph S
Humidity59%
Visibility—
Dew point31°
Sun, 0156° / 36°0
56 °
Mount Idaho, Sunday, 1 November
Partly cloudy. High 56°, low 36°.
Pressure30.00 inHg
Wind4.8 mph S
Humidity36%
Visibility—
Dew point23°
Mon, 0258° / 39°0
58 °
Mount Idaho, Monday, 2 November
Overcast. High 58°, low 39°.
Pressure30.00 inHg
Wind4 mph S
Humidity37%
Visibility—
Dew point26°
Tue, 0362° / 44°0
62 °
Mount Idaho, Tuesday, 3 November
Partly cloudy. High 62°, low 44°.
Pressure30.03 inHg
Wind6.3 mph S
Humidity44%
Visibility—
Dew point33°
Wed, 0460° / 46°0.04
60 °
Mount Idaho, Wednesday, 4 November
Light rain. High 60°, low 46°.
Pressure30.06 inHg
Wind5.2 mph S
Humidity69%
Visibility—
Dew point45°
Thu, 0567° / 45°0
67 °
Mount Idaho, Thursday, 5 November
Overcast. High 67°, low 45°.
Pressure29.91 inHg
Wind5.1 mph SW
Humidity46%
Visibility—
Dew point36°
Fri, 0659° / 46°0
59 °
Mount Idaho, Friday, 6 November
Overcast. High 59°, low 46°.
Pressure29.83 inHg
Wind4.1 mph S
Humidity49%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0746° / 31°0.14
46 °
Mount Idaho, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.14 in
Chance of precipitation53%
Record high66° (1999)
Record low10° (1990)
Sun, 0846° / 30°0.1
46 °
Mount Idaho, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.1 in
Chance of precipitation43%
Record high67° (2016)
Record low8° (1994)
Mon, 0945° / 29°0.11
45 °
Mount Idaho, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.11 in
Chance of precipitation52%
Record high65° (2016)
Record low16° (1986)
Tue, 1044° / 29°0.07
44 °
Mount Idaho, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.07 in
Chance of precipitation40%
Record high65° (2016)
Record low-2° (1986)
Wed, 1145° / 29°0.09
45 °
Mount Idaho, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.09 in
Chance of precipitation32%
Record high67° (2016)
Record low6° (1986)
Thu, 1244° / 29°0.11
44 °
Mount Idaho, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.11 in
Chance of precipitation45%
Record high68° (1999)
Record low-1° (1985)
Fri, 1344° / 29°0.1
44 °
Mount Idaho, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.1 in
Chance of precipitation47%
Record high66° (1999)
Record low-8° (1985)
Sat, 1444° / 29°0.08
44 °
Mount Idaho, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.08 in
Chance of precipitation47%
Record high67° (1999)
Record low12° (1994)
Sun, 1545° / 28°0.06
45 °
Mount Idaho, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.06 in
Chance of precipitation33%
Record high60° (2001)
Record low9° (1988)
Mon, 1643° / 29°0.1
43 °
Mount Idaho, Monday, 16 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.1 in
Chance of precipitation57%
Record high60° (1999)
Record low10° (1961)
Tue, 1743° / 29°0.12
43 °
Mount Idaho, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.12 in
Chance of precipitation47%
Record high62° (2008)
Record low6° (1994)
Wed, 1841° / 27°0.13
41 °
Mount Idaho, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.13 in
Chance of precipitation55%
Record high60° (2008)
Record low5° (1994)
Thu, 1942° / 26°0.1
42 °
Mount Idaho, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.1 in
Chance of precipitation43%
Record high56° (1966)
Record low0° (1985)
Fri, 2041° / 27°0.09
41 °
Mount Idaho, Friday, 20 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.09 in
Chance of precipitation52%
Record high58° (2002)
Record low6° (1977)
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 Mount Idaho, 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 Mount Idaho, 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.