Monthly outlook for South Mountain, ID: average high 46.2°, average low 30.9°. That is 2.5° below the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 6 November (53.1°), the coolest 25 October (24.8°).
46.2°/30.9°
Average high / low
−2.5°
Below normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
45.8°
51.9°
-3.4°
4 November – 13 November
46.8°
47.6°
-0.5°
14 November – 23 November
at normal
42.7°
—
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).
Mon, 2647° / 31°0.11
47 °
South Mountain, Monday, 26 October
Rain. High 47°, low 31°.
Pressure29.97 inHg
Wind10.5 mph SW
Humidity55%
Visibility6.2 mi
Dew point32°
Tue, 2740° / 29°0.02
40 °
South Mountain, Tuesday, 27 October
Light rain. High 40°, low 29°.
Pressure30.09 inHg
Wind3.4 mph SW
Humidity72%
Visibility6.2 mi
Dew point31°
Wed, 2845° / 27°0
45 °
South Mountain, Wednesday, 28 October
Clear. High 45°, low 27°.
Pressure30.06 inHg
Wind8.4 mph SW
Humidity63%
Visibility6.2 mi
Dew point29°
Thu, 2951° / 29°0
51 °
South Mountain, Thursday, 29 October
Overcast. High 51°, low 29°.
Pressure29.91 inHg
Wind6.8 mph SE
Humidity48%
Visibility—
Dew point26°
Fri, 3049° / 34°0
49 °
South Mountain, Friday, 30 October
Overcast. High 49°, low 34°.
Pressure29.83 inHg
Wind10.4 mph SW
Humidity52%
Visibility—
Dew point29°
Sat, 3148° / 31°0
48 °
South Mountain, Saturday, 31 October
Clear. High 48°, low 31°.
Pressure30.00 inHg
Wind10.1 mph SW
Humidity34%
Visibility—
Dew point15°
Sun, 0138° / 32°0.43
38 °
South Mountain, Sunday, 1 November
Snow. High 38°, low 32°.
Pressure29.59 inHg
Wind16 mph W
Humidity92%
Visibility—
Dew point34°
Mon, 0241° / 27°0
41 °
South Mountain, Monday, 2 November
Clear. High 41°, low 27°.
Pressure30.21 inHg
Wind9.9 mph W
Humidity54%
Visibility—
Dew point20°
Tue, 0346° / 32°0
46 °
South Mountain, Tuesday, 3 November
Overcast. High 46°, low 32°.
Pressure30.06 inHg
Wind10.2 mph W
Humidity46%
Visibility—
Dew point21°
Wed, 0449° / 34°0
49 °
South Mountain, Wednesday, 4 November
Overcast. High 49°, low 34°.
Pressure29.97 inHg
Wind13.4 mph SW
Humidity46%
Visibility—
Dew point24°
Thu, 0549° / 37°0.03
49 °
South Mountain, Thursday, 5 November
Light rain. High 49°, low 37°.
Pressure29.91 inHg
Wind16.7 mph S
Humidity42%
Visibility—
Dew point25°
Fri, 0653° / 44°0
53 °
South Mountain, Friday, 6 November
Overcast. High 53°, low 44°.
Pressure29.74 inHg
Wind12.3 mph SE
Humidity36%
Visibility—
Dew point24°
Sat, 0746° / 29°0.34
46 °
South Mountain, Saturday, 7 November
Snow. High 46°, low 29°.
Pressure29.77 inHg
Wind20.8 mph S
Humidity84%
Visibility—
Dew point31°
Sun, 0840° / 27°0
40 °
South Mountain, Sunday, 8 November
Overcast. High 40°, low 27°.
Pressure30.03 inHg
Wind12 mph W
Humidity62%
Visibility—
Dew point24°
Mon, 0944° / 27°0
44 °
South Mountain, Monday, 9 November
Clear. High 44°, low 27°.
Pressure30.36 inHg
Wind3.8 mph NW
Humidity49%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1046° / 30°0.06
46 °
South Mountain, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation32%
Record high66° (2016)
Record low8° (1998)
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)
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.