Weather in Casper Mountain, WY
Casper Mountain, Sunday, 18 October, 01:34
Clear. Feels like 39°. High 60°, low 41°.
Monthly outlook for Casper Mountain, WY: average high 52.7°, average low 35.3°. That is 4.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 22 October (67.7°), the coolest 25 October (19.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 55.9° | 46.4° | +5.3° |
| 28 October – 6 November | 47.3° | 39.4° | +4.4° |
| 7 November – 16 November | at normal | 36.1° | — |
October records over 66 years
0
Casper Mountain, Monday, 19 October
Clear. High 66°, low 37°.
0Casper Mountain, Tuesday, 20 October
Clear. High 65°, low 47°.
0Casper Mountain, Wednesday, 21 October
Clear. High 67°, low 46°.
0
Casper Mountain, Thursday, 22 October
Overcast. High 68°, low 47°.
0.17
Casper Mountain, Friday, 23 October
Rain. High 59°, low 34°.
0.5
Casper Mountain, Saturday, 24 October
Snow. High 30°, low 20°.
0Casper Mountain, Sunday, 25 October
Clear. High 42°, low 20°.
0Casper Mountain, Monday, 26 October
Overcast. High 50°, low 29°.
0Casper Mountain, Tuesday, 27 October
Clear. High 52°, low 38°.
0Casper Mountain, Wednesday, 28 October
Overcast. High 48°, low 38°.
0
Casper Mountain, Thursday, 29 October
Partly cloudy. High 47°, low 33°.
0Casper Mountain, Friday, 30 October
Clear. High 50°, low 34°.
0Casper Mountain, Saturday, 31 October
Overcast. High 41°, low 32°.
0Casper Mountain, Sunday, 1 November
Clear. High 51°, low 33°.
0
Casper Mountain, Monday, 2 November
Mostly clear. High 46°, low 37°.
0.05Casper Mountain, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Casper Mountain, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Casper Mountain, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Casper Mountain, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Casper Mountain, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Casper Mountain, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Casper Mountain, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Casper Mountain, Monday, 16 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 Casper Mountain, WY 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 Casper Mountain, WY 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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