Weather in Casper Mountain, WY
Casper Mountain, Saturday, 17 October, 01:09
Clear. Feels like 36°. High 64°, low 40°.
Monthly outlook for Casper Mountain, WY: average high 50°, average low 34.3°. That is 3.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.9 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 19 October (64.6°), the coolest 30 October (22.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 55.5° | 46.8° | +4.8° |
| 27 October – 5 November | 41° | 39.9° | +0.6° |
| 6 November – 15 November | at normal | 36.5° | — |
October records over 66 years
0
Casper Mountain, Sunday, 18 October
Overcast. High 63°, low 45°.
0
Casper Mountain, Monday, 19 October
Clear. High 65°, low 42°.
0Casper Mountain, Tuesday, 20 October
Clear. High 64°, low 48°.
0.02
Casper Mountain, Wednesday, 21 October
Light rain. High 64°, low 42°.
0
Casper Mountain, Thursday, 22 October
Partly cloudy. High 64°, low 46°.
0.07
Casper Mountain, Friday, 23 October
Snow. High 49°, low 31°.
0Casper Mountain, Saturday, 24 October
Partly cloudy. High 36°, low 26°.
0.02Casper Mountain, Sunday, 25 October
Light rain. High 38°, low 27°.
0
Casper Mountain, Monday, 26 October
Mostly clear. High 48°, low 33°.
0Casper Mountain, Tuesday, 27 October
Clear. High 49°, low 31°.
0.25Casper Mountain, Wednesday, 28 October
Rain. High 49°, low 33°.
1.53Casper Mountain, Thursday, 29 October
Snow. High 41°, low 25°.
0.01Casper Mountain, Friday, 30 October
Light snow. High 30°, low 22°.
0Casper Mountain, Saturday, 31 October
Clear. High 36°, low 26°.
0Casper Mountain, Sunday, 1 November
Clear. High 41°, low 31°.
0.04Casper Mountain, Monday, 2 November
Climate normal for this date — 60-year average.
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.
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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