Weather in South Mountain, ID
South Mountain, Thursday, 29 October, 23:01
Overcast. Feels like 20°. High 44°, low 18°.
Monthly outlook for South Mountain, ID: average high 41.8°, average low 26.7°. That is 3.8° below the climate normal for October. Precipitation is expected on 6 days (about 1.2 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 3 November (54.1°), the coolest 29 October (17.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 44.8° | 50.1° | -2.9° |
| 8 November – 17 November | 36.7° | 45.6° | -5° |
| 18 November – 27 November | at normal | 40° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Cliffs (8 mi).
0.07
South Mountain, Friday, 30 October
Snow. High 45°, low 23°.
0
South Mountain, Saturday, 31 October
Light rain. High 50°, low 23°.
0.34South Mountain, Sunday, 1 November
Light rain. High 39°, low 34°.
0
South Mountain, Monday, 2 November
Clear. High 43°, low 29°.
0South Mountain, Tuesday, 3 November
Clear. High 54°, low 31°.
0South Mountain, Wednesday, 4 November
Overcast. High 48°, low 32°.
0South Mountain, Thursday, 5 November
Overcast. High 41°, low 31°.
0South Mountain, Friday, 6 November
Overcast. High 40°, low 26°.
0South Mountain, Saturday, 7 November
Clear. High 44°, low 26°.
0South Mountain, Sunday, 8 November
Overcast. High 37°, low 25°.
0.02South Mountain, Monday, 9 November
Light rain. High 43°, low 26°.
0.32South Mountain, Tuesday, 10 November
Light rain. High 39°, low 33°.
0.16South Mountain, Wednesday, 11 November
Light snow. High 33°, low 25°.
0.08South Mountain, Thursday, 12 November
Snow. High 38°, low 24°.
0.18South Mountain, Friday, 13 November
Light snow. High 31°, low 23°.
0.05
South Mountain, Saturday, 14 November
Climate normal for this date — 60-year average.
0.03
South Mountain, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05South Mountain, Monday, 16 November
Climate normal for this date — 60-year average.
0.07
South Mountain, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07South Mountain, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.05South Mountain, Thursday, 19 November
Climate normal for this date — 60-year average.
0.06South Mountain, Friday, 20 November
Climate normal for this date — 60-year average.
0.06South Mountain, Saturday, 21 November
Climate normal for this date — 60-year average.
0.09South Mountain, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07South Mountain, Monday, 23 November
Climate normal for this date — 60-year average.
0.09South Mountain, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08South Mountain, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.06South Mountain, Thursday, 26 November
Climate normal for this date — 60-year average.
0.06South Mountain, Friday, 27 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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