Weather in Long Valley, SD
Long Valley, Friday, 23 October, 03:03
Overcast. Feels like 60°. High 83°, low 61°.
Monthly outlook for Long Valley, SD: average high 52.6°, average low 39.3°. That is 0.9° below the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (82.6°), the coolest 31 October (31.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 49.5° | 55.6° | -3.4° |
| 2 November – 11 November | 57.7° | 49.9° | +4.4° |
| 12 November – 21 November | at normal | 46.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Wanblee (11 mi).
0.01
Long Valley, Saturday, 24 October
Light rain. High 60°, low 42°.
0.18Long Valley, Sunday, 25 October
Light rain. High 45°, low 39°.
0.54Long Valley, Monday, 26 October
Rain. High 39°, low 37°.
0Long Valley, Tuesday, 27 October
Light rain. High 57°, low 36°.
0Long Valley, Wednesday, 28 October
Overcast. High 52°, low 38°.
0Long Valley, Thursday, 29 October
Overcast. High 41°, low 32°.
0Long Valley, Friday, 30 October
Overcast. High 40°, low 35°.
0.23
Long Valley, Saturday, 31 October
Light snow. High 34°, low 32°.
0Long Valley, Sunday, 1 November
Light snow. High 45°, low 32°.
0
Long Valley, Monday, 2 November
Clear. High 50°, low 34°.
0Long Valley, Tuesday, 3 November
Clear. High 54°, low 34°.
0Long Valley, Wednesday, 4 November
Clear. High 63°, low 38°.
0
Long Valley, Thursday, 5 November
Mostly clear. High 64°, low 47°.
0Long Valley, Friday, 6 November
Clear. High 60°, low 48°.
0Long Valley, Saturday, 7 November
Clear. High 56°, low 43°.
0.07Long Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06
Long Valley, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Long Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03Long Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Long Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Long Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Long Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Long Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Long Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Long Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Long Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.03Long Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.02Long Valley, Friday, 20 November
Climate normal for this date — 60-year average.
0.02Long Valley, Saturday, 21 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 Long Valley, SD 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 Long Valley, SD 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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