Weather in Rapid Valley, SD
Rapid Valley, Sunday, 18 October, 16:50
Partly cloudy. Feels like 62°. High 66°, low 42°.
Monthly outlook for Rapid Valley, SD: average high 61.1°, average low 41.2°. That is 2.4° above the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (75.8°), the coolest 2 November (25.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 64.2° | 58.9° | +3° |
| 28 October – 6 November | 55.8° | 52.8° | +1.6° |
| 7 November – 16 November | at normal | 48.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Green Valley (2 mi).
0
Rapid Valley, Monday, 19 October
Clear. High 63°, low 37°.
0Rapid Valley, Tuesday, 20 October
Clear. High 74°, low 38°.
0Rapid Valley, Wednesday, 21 October
Clear. High 67°, low 47°.
0
Rapid Valley, Thursday, 22 October
Overcast. High 73°, low 52°.
0
Rapid Valley, Friday, 23 October
Light rain. High 76°, low 57°.
0Rapid Valley, Saturday, 24 October
Overcast. High 55°, low 41°.
0Rapid Valley, Sunday, 25 October
Clear. High 64°, low 39°.
0.02Rapid Valley, Monday, 26 October
Light rain. High 47°, low 44°.
0.01Rapid Valley, Tuesday, 27 October
Light rain. High 57°, low 44°.
0Rapid Valley, Wednesday, 28 October
Overcast. High 73°, low 47°.
0Rapid Valley, Thursday, 29 October
Partly cloudy. High 58°, low 42°.
0Rapid Valley, Friday, 30 October
Clear. High 63°, low 37°.
0.22Rapid Valley, Saturday, 31 October
Rain. High 56°, low 44°.
1
Rapid Valley, Sunday, 1 November
Snow. High 43°, low 26°.
0
Rapid Valley, Monday, 2 November
Mostly clear. High 42°, low 25°.
0.04Rapid Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Rapid Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Rapid Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Rapid Valley, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Rapid Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Rapid Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Rapid Valley, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Rapid Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Rapid Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Rapid Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Rapid Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Rapid Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Rapid Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Rapid Valley, 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 Rapid 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 Rapid 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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