Weather in Copper Cliff, MT
Copper Cliff, Friday, 16 October, 20:32
Overcast. Feels like 43°. High 60°, low 28°.
Monthly outlook for Copper Cliff, MT: average high 54.4°, average low 31.9°. That is 1.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 17 October (63.5°), the coolest 25 October (25.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 56.6° | 54.3° | +1.3° |
| 26 October – 4 November | 50.9° | 47.4° | +1.9° |
| 5 November – 14 November | at normal | 42.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Potomac (8 mi).
0
Copper Cliff, Saturday, 17 October
Partly cloudy. High 64°, low 32°.
0
Copper Cliff, Sunday, 18 October
Clear. High 59°, low 33°.
0Copper Cliff, Monday, 19 October
Overcast. High 63°, low 36°.
0Copper Cliff, Tuesday, 20 October
Overcast. High 62°, low 41°.
0Copper Cliff, Wednesday, 21 October
Clear. High 62°, low 37°.
0.06
Copper Cliff, Thursday, 22 October
Light rain. High 59°, low 40°.
0.33Copper Cliff, Friday, 23 October
Rain. High 44°, low 35°.
0
Copper Cliff, Saturday, 24 October
Mostly clear. High 47°, low 27°.
0Copper Cliff, Sunday, 25 October
Partly cloudy. High 45°, low 25°.
0Copper Cliff, Monday, 26 October
Partly cloudy. High 51°, low 29°.
0Copper Cliff, Tuesday, 27 October
Mostly clear. High 54°, low 30°.
0Copper Cliff, Wednesday, 28 October
Partly cloudy. High 51°, low 31°.
0Copper Cliff, Thursday, 29 October
Overcast. High 44°, low 31°.
0Copper Cliff, Friday, 30 October
Clear. High 51°, low 27°.
0Copper Cliff, Saturday, 31 October
Clear. High 54°, low 28°.
0.08Copper Cliff, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07
Copper Cliff, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Copper Cliff, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Copper Cliff, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Copper Cliff, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Copper Cliff, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Copper Cliff, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Copper Cliff, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Copper Cliff, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Copper Cliff, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Copper Cliff, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Copper Cliff, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Copper Cliff, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Copper Cliff, Saturday, 14 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 Copper Cliff, MT 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 Copper Cliff, MT 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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