Monthly outlook for South Mountain, ID: average high 42.8°, average low 27.3°. That is 3.1° below the climate normal for October. Precipitation is expected on 8 days (about 1.2 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 3 November (55.3°), the coolest 13 November (17.5°).
42.8°/27.3°
Average high / low
−3.1°
Below normal
8 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
44.5°
49.8°
-2.9°
9 November – 18 November
39.9°
45.2°
-2.9°
19 November – 28 November
at normal
39.4°
—
October records over 66 years
87.3°1 October 2010All-time high
2.8°31 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Cliffs (8 mi).
Sat, 3145° / 22°0.07
45 °
South Mountain, Saturday, 31 October
Light rain. High 45°, low 22°.
Pressure29.91 inHg
Wind2.3 mph SE
Humidity61%
Visibility6.2 mi
Dew point35°
Sun, 0139° / 29°0.35
39 °
South Mountain, Sunday, 1 November
Snow. High 39°, low 29°.
Pressure29.94 inHg
Wind9.3 mph NW
Humidity99%
Visibility2.4 mi
Dew point37°
Mon, 0244° / 28°0
44 °
South Mountain, Monday, 2 November
Clear. High 44°, low 28°.
Pressure30.39 inHg
Wind3 mph W
Humidity75%
Visibility6.2 mi
Dew point34°
Tue, 0355° / 32°0
55 °
South Mountain, Tuesday, 3 November
Overcast. High 55°, low 32°.
Pressure30.27 inHg
Wind8.8 mph SE
Humidity47%
Visibility—
Dew point27°
Wed, 0452° / 33°0
52 °
South Mountain, Wednesday, 4 November
Overcast. High 52°, low 33°.
Pressure29.97 inHg
Wind8.7 mph E
Humidity50%
Visibility—
Dew point29°
Thu, 0546° / 31°0
46 °
South Mountain, Thursday, 5 November
Overcast. High 46°, low 31°.
Pressure29.85 inHg
Wind7.4 mph SE
Humidity42%
Visibility—
Dew point19°
Fri, 0637° / 25°0.1
37 °
South Mountain, Friday, 6 November
Snow. High 37°, low 25°.
Pressure29.91 inHg
Wind18 mph NW
Humidity70%
Visibility—
Dew point28°
Sat, 0737° / 22°0
37 °
South Mountain, Saturday, 7 November
Clear. High 37°, low 22°.
Pressure30.27 inHg
Wind6.6 mph NW
Humidity46%
Visibility—
Dew point13°
Sun, 0845° / 27°0
45 °
South Mountain, Sunday, 8 November
Overcast. High 45°, low 27°.
Pressure30.18 inHg
Wind7.8 mph E
Humidity21%
Visibility—
Dew point2°
Mon, 0951° / 34°0.07
51 °
South Mountain, Monday, 9 November
Light rain. High 51°, low 34°.
Pressure29.91 inHg
Wind9.6 mph SW
Humidity23%
Visibility—
Dew point8°
Tue, 1045° / 37°0.06
45 °
South Mountain, Tuesday, 10 November
Light rain. High 45°, low 37°.
Pressure29.80 inHg
Wind18.8 mph S
Humidity56%
Visibility—
Dew point28°
Wed, 1141° / 29°0.11
41 °
South Mountain, Wednesday, 11 November
Snow. High 41°, low 29°.
Pressure29.56 inHg
Wind24.1 mph SW
Humidity70%
Visibility—
Dew point26°
Thu, 1230° / 20°0.33
30 °
South Mountain, Thursday, 12 November
Snow. High 30°, low 20°.
Pressure30.00 inHg
Wind17.8 mph W
Humidity94%
Visibility—
Dew point26°
Fri, 1334° / 17°0
34 °
South Mountain, Friday, 13 November
Partly cloudy. High 34°, low 17°.
Pressure30.24 inHg
Wind8 mph E
Humidity67%
Visibility—
Dew point19°
Sat, 1438° / 26°0
38 °
South Mountain, Saturday, 14 November
Overcast. High 38°, low 26°.
Pressure30.00 inHg
Wind9.2 mph E
Humidity63%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1546° / 29°0.03
46 °
South Mountain, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high61° (2016)
Record low7° (1985)
Mon, 1645° / 30°0.05
45 °
South Mountain, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.05 in
Chance of precipitation32%
Record high62° (1999)
Record low4° (2014)
Tue, 1744° / 29°0.07
44 °
South Mountain, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.07 in
Chance of precipitation38%
Record high63° (2008)
Record low10° (2000)
Wed, 1842° / 28°0.07
42 °
South Mountain, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high61° (2008)
Record low7° (1994)
Thu, 1942° / 27°0.05
42 °
South Mountain, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.05 in
Chance of precipitation27%
Record high57° (1989)
Record low-3° (1985)
Fri, 2042° / 27°0.06
42 °
South Mountain, Friday, 20 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.06 in
Chance of precipitation37%
Record high57° (1989)
Record low4° (1985)
Sat, 2141° / 26°0.06
41 °
South Mountain, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.06 in
Chance of precipitation37%
Record high60° (2002)
Record low-3° (1994)
Sun, 2240° / 26°0.09
40 °
South Mountain, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.09 in
Chance of precipitation37%
Record high60° (2017)
Record low-5° (1985)
Mon, 2340° / 24°0.07
40 °
South Mountain, Monday, 23 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.07 in
Chance of precipitation32%
Record high57° (2017)
Record low-12° (1985)
Tue, 2440° / 24°0.09
40 °
South Mountain, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.09 in
Chance of precipitation33%
Record high61° (1995)
Record low-7° (2010)
Wed, 2538° / 24°0.08
38 °
South Mountain, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.08 in
Chance of precipitation43%
Record high52° (2017)
Record low-13° (2010)
Thu, 2637° / 23°0.06
37 °
South Mountain, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.06 in
Chance of precipitation42%
Record high60° (2017)
Record low-2° (1993)
Fri, 2737° / 22°0.06
37 °
South Mountain, Friday, 27 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.06 in
Chance of precipitation37%
Record high54° (2014)
Record low-1° (1979)
Sat, 2837° / 24°0.07
37 °
South Mountain, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.07 in
Chance of precipitation37%
Record high56° (2021)
Record low-5° (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 South Mountain, 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 South Mountain, 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.