Weather in Summerville, PA
Summerville, Tuesday, 20 October, 11:58
Mostly clear. Feels like 58°. High 66°, low 36°.
Monthly outlook for Summerville, PA: average high 55.7°, average low 35.3°. That is 1.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 20 October (65.7°), the coolest 31 October (26.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 59° | 54.4° | +2.5° |
| 30 October – 8 November | 50.2° | 51.4° | -0.7° |
| 9 November – 18 November | at normal | 46.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Oliver (9 mi).
0
Summerville, Wednesday, 21 October
Clear. High 65°, low 31°.
0
Summerville, Thursday, 22 October
Partly cloudy. High 63°, low 33°.
0Summerville, Friday, 23 October
Clear. High 57°, low 36°.
0Summerville, Saturday, 24 October
Clear. High 60°, low 35°.
0
Summerville, Sunday, 25 October
Overcast. High 63°, low 37°.
0Summerville, Monday, 26 October
Overcast. High 64°, low 46°.
0.24
Summerville, Tuesday, 27 October
Rain. High 60°, low 40°.
0.02
Summerville, Wednesday, 28 October
Snow. High 44°, low 31°.
0Summerville, Thursday, 29 October
Mostly clear. High 49°, low 29°.
0.1Summerville, Friday, 30 October
Snow. High 39°, low 31°.
0Summerville, Saturday, 31 October
Clear. High 46°, low 27°.
0Summerville, Sunday, 1 November
Overcast. High 48°, low 32°.
0Summerville, Monday, 2 November
Overcast. High 53°, low 40°.
0Summerville, Tuesday, 3 November
Partly cloudy. High 58°, low 38°.
0.06Summerville, Wednesday, 4 November
Light rain. High 56°, low 43°.
0.1
Summerville, Thursday, 5 November
Climate normal for this date — 60-year average.
0.1Summerville, Friday, 6 November
Climate normal for this date — 60-year average.
0.12Summerville, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Summerville, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Summerville, Monday, 9 November
Climate normal for this date — 60-year average.
0.18Summerville, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.17Summerville, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Summerville, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Summerville, Friday, 13 November
Climate normal for this date — 60-year average.
0.12Summerville, Saturday, 14 November
Climate normal for this date — 60-year average.
0.15Summerville, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Summerville, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Summerville, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Summerville, Wednesday, 18 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, PA 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, PA 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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