Weather in Long Valley, SD
Long Valley, Monday, 19 October, 19:32
Clear. Feels like 50°. High 65°, low 37°.
Monthly outlook for Long Valley, SD: average high 63.1°, average low 43.5°. That is 3.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (79.7°), the coolest 28 October (29.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 61.5° | 58.7° | +1.5° |
| 29 October – 7 November | 65.7° | 52.3° | +7.5° |
| 8 November – 17 November | at normal | 47.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Wanblee (11 mi).
0
Long Valley, Tuesday, 20 October
Clear. High 75°, low 43°.
0
Long Valley, Wednesday, 21 October
Overcast. High 66°, low 46°.
0
Long Valley, Thursday, 22 October
Mostly clear. High 77°, low 53°.
0Long Valley, Friday, 23 October
Overcast. High 80°, low 60°.
0.07
Long Valley, Saturday, 24 October
Light rain. High 64°, low 47°.
0.28Long Valley, Sunday, 25 October
Rain. High 48°, low 41°.
0Long Valley, Monday, 26 October
Overcast. High 43°, low 35°.
0Long Valley, Tuesday, 27 October
Clear. High 41°, low 30°.
0Long Valley, Wednesday, 28 October
Clear. High 55°, low 30°.
0Long Valley, Thursday, 29 October
Clear. High 59°, low 38°.
0Long Valley, Friday, 30 October
Mostly clear. High 63°, low 42°.
0Long Valley, Saturday, 31 October
Overcast. High 73°, low 47°.
0Long Valley, Sunday, 1 November
Overcast. High 64°, low 51°.
0Long Valley, Monday, 2 November
Clear. High 67°, low 49°.
0Long Valley, Tuesday, 3 November
Mostly clear. High 69°, low 48°.
0.02Long Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Long Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Long Valley, Friday, 6 November
Climate normal for this date — 60-year average.
0.04Long Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
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.
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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