Weather in Mercersburg, PA
Mercersburg, Thursday, 5 November, 03:00
Overcast. Feels like 65°. High 74°, low 54°.
Monthly outlook for Mercersburg, PA: average high 59.1°, average low 43.7°. That is 3.4° above the climate normal for November. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 5 November (74.5°), the coolest 19 November (35.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 5 November – 14 November | 58.7° | 54.2° | +2.5° |
| 15 November – 24 November | 59.9° | 50° | +5.5° |
| 25 November – 4 December | at normal | 47.2° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Warren (7 mi).
0
Mercersburg, Friday, 6 November
Partly cloudy. High 71°, low 48°.
0Mercersburg, Saturday, 7 November
Partly cloudy. High 54°, low 46°.
0
Mercersburg, Sunday, 8 November
Mostly clear. High 58°, low 47°.
0Mercersburg, Monday, 9 November
Overcast. High 56°, low 46°.
0Mercersburg, Tuesday, 10 November
Partly cloudy. High 65°, low 40°.
0Mercersburg, Wednesday, 11 November
Partly cloudy. High 58°, low 39°.
0
Mercersburg, Thursday, 12 November
Light rain. High 47°, low 36°.
0Mercersburg, Friday, 13 November
Overcast. High 47°, low 38°.
0Mercersburg, Saturday, 14 November
Overcast. High 56°, low 39°.
0Mercersburg, Sunday, 15 November
Partly cloudy. High 64°, low 46°.
0Mercersburg, Monday, 16 November
Overcast. High 62°, low 49°.
0.06Mercersburg, Tuesday, 17 November
Light rain. High 64°, low 51°.
0Mercersburg, Wednesday, 18 November
Overcast. High 55°, low 41°.
0Mercersburg, Thursday, 19 November
Overcast. High 55°, low 36°.
0.02Mercersburg, Friday, 20 November
Light rain. High 60°, low 45°.
0.11Mercersburg, Saturday, 21 November
Climate normal for this date — 60-year average.
0.1
Mercersburg, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Mercersburg, Monday, 23 November
Climate normal for this date — 60-year average.
0.13Mercersburg, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Mercersburg, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.17Mercersburg, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Mercersburg, Friday, 27 November
Climate normal for this date — 60-year average.
0.2Mercersburg, Saturday, 28 November
Climate normal for this date — 60-year average.
0.13Mercersburg, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Mercersburg, Monday, 30 November
Climate normal for this date — 60-year average.
0.17Mercersburg, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.1Mercersburg, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.12Mercersburg, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09Mercersburg, Friday, 4 December
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 Mercersburg, 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 Mercersburg, 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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