Weather in Summerville, SD
Summerville, Monday, 19 October, 02:28
Mostly clear. Feels like 35°. High 64°, low 38°.
Monthly outlook for Summerville, SD: average high 59.1°, average low 40.4°. That is 3.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 22 October (74.6°), the coolest 28 October (23°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 59.6° | 54.4° | +2.9° |
| 29 October – 7 November | 58.2° | 47.5° | +5.9° |
| 8 November – 17 November | at normal | 41.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lemmon (11 mi).
0
Summerville, Tuesday, 20 October
Clear. High 71°, low 41°.
0
Summerville, Wednesday, 21 October
Overcast. High 64°, low 45°.
0Summerville, Thursday, 22 October
Clear. High 75°, low 50°.
0.02
Summerville, Friday, 23 October
Light rain. High 73°, low 57°.
0.01Summerville, Saturday, 24 October
Light rain. High 62°, low 48°.
0
Summerville, Sunday, 25 October
Mostly clear. High 61°, low 42°.
0Summerville, Monday, 26 October
Overcast. High 42°, low 35°.
0Summerville, Tuesday, 27 October
Overcast. High 39°, low 28°.
0Summerville, Wednesday, 28 October
Clear. High 45°, low 23°.
0Summerville, Thursday, 29 October
Clear. High 55°, low 30°.
0Summerville, Friday, 30 October
Overcast. High 60°, low 39°.
0Summerville, Saturday, 31 October
Light rain. High 68°, low 51°.
0.04Summerville, Sunday, 1 November
Light rain. High 64°, low 45°.
0.5Summerville, Monday, 2 November
Rain. High 54°, low 39°.
0
Summerville, Tuesday, 3 November
Partly cloudy. High 48°, low 35°.
0.02Summerville, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Summerville, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Summerville, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Summerville, Saturday, 7 November
Climate normal for this date — 60-year average.
0.03Summerville, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Summerville, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Summerville, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.01Summerville, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Summerville, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Summerville, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Summerville, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Summerville, Sunday, 15 November
Climate normal for this date — 60-year average.
0.01Summerville, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Summerville, 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 Summerville, 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 Summerville, 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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