Monthly outlook for South Mountain, ID: average high 45.3°, average low 29.5°. That is 2.6° below the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 6 November (58.9°), the coolest 27 October (22.2°).
45.3°/29.5°
Average high / low
−2.6°
Below normal
5 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
43.4°
51.4°
-4.4°
5 November – 14 November
48.6°
47°
+0.9°
15 November – 24 November
at normal
42.2°
—
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).
Tue, 2742° / 22°0.1
42 °
South Mountain, Tuesday, 27 October
Snow. High 42°, low 22°.
Pressure30.06 inHg
Wind4.4 mph S
Humidity77%
Visibility6.2 mi
Dew point32°
Wed, 2843° / 25°0
43 °
South Mountain, Wednesday, 28 October
Clear. High 43°, low 25°.
Pressure30.06 inHg
Wind7.5 mph SW
Humidity70%
Visibility6.2 mi
Dew point30°
Thu, 2948° / 27°0
48 °
South Mountain, Thursday, 29 October
Overcast. High 48°, low 27°.
Pressure29.91 inHg
Wind5.1 mph S
Humidity52%
Visibility6.2 mi
Dew point26°
Fri, 3045° / 31°0.02
45 °
South Mountain, Friday, 30 October
Light rain. High 45°, low 31°.
Pressure29.83 inHg
Wind10.5 mph SW
Humidity58%
Visibility—
Dew point29°
Sat, 3144° / 29°0.02
44 °
South Mountain, Saturday, 31 October
Light rain. High 44°, low 29°.
Pressure29.88 inHg
Wind10.4 mph SW
Humidity65%
Visibility—
Dew point30°
Sun, 0139° / 25°0
39 °
South Mountain, Sunday, 1 November
Overcast. High 39°, low 25°.
Pressure30.03 inHg
Wind12.3 mph W
Humidity34%
Visibility—
Dew point10°
Mon, 0242° / 23°0
42 °
South Mountain, Monday, 2 November
Overcast. High 42°, low 23°.
Pressure30.24 inHg
Wind10.4 mph SE
Humidity28%
Visibility—
Dew point5°
Tue, 0341° / 33°0.15
41 °
South Mountain, Tuesday, 3 November
Light rain. High 41°, low 33°.
Pressure30.00 inHg
Wind17.8 mph S
Humidity45%
Visibility—
Dew point19°
Wed, 0446° / 30°0
46 °
South Mountain, Wednesday, 4 November
Overcast. High 46°, low 30°.
Pressure30.03 inHg
Wind9.1 mph S
Humidity56%
Visibility—
Dew point25°
Thu, 0554° / 37°0
54 °
South Mountain, Thursday, 5 November
Overcast. High 54°, low 37°.
Pressure29.94 inHg
Wind16.6 mph S
Humidity53%
Visibility—
Dew point30°
Fri, 0659° / 41°0.15
59 °
South Mountain, Friday, 6 November
Rain. High 59°, low 41°.
Pressure29.62 inHg
Wind24.3 mph S
Humidity32%
Visibility—
Dew point24°
Sat, 0736° / 27°0.16
36 °
South Mountain, Saturday, 7 November
Snow. High 36°, low 27°.
Pressure29.77 inHg
Wind22 mph NW
Humidity61%
Visibility—
Dew point23°
Sun, 0838° / 23°0
38 °
South Mountain, Sunday, 8 November
Overcast. High 38°, low 23°.
Pressure30.18 inHg
Wind8.3 mph NW
Humidity55%
Visibility—
Dew point17°
Mon, 0951° / 35°0
51 °
South Mountain, Monday, 9 November
Partly cloudy. High 51°, low 35°.
Pressure30.24 inHg
Wind8.4 mph S
Humidity52%
Visibility—
Dew point29°
Tue, 1053° / 37°0
53 °
South Mountain, Tuesday, 10 November
Clear. High 53°, low 37°.
Pressure30.09 inHg
Wind6.6 mph SW
Humidity42%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1146° / 30°0.05
46 °
South Mountain, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.05 in
Chance of precipitation30%
Record high65° (2016)
Record low7° (1992)
Thu, 1246° / 30°0.06
46 °
South Mountain, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation30%
Record high67° (1999)
Record low7° (1985)
Fri, 1346° / 31°0.05
46 °
South Mountain, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.05 in
Chance of precipitation28%
Record high67° (1999)
Record low9° (2022)
Sat, 1445° / 29°0.05
45 °
South Mountain, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.05 in
Chance of precipitation30%
Record high67° (1999)
Record low1° (1994)
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)
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.