Weather in Mount Aetna, MD
Mount Aetna, Saturday, 8 August, 22:23
Overcast. Feels like 78°. High 85°, low 70°.
Monthly outlook for Mount Aetna, MD: average high 83.6°, average low 63.6°. That is 0.1° above the climate normal for August. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 10 August (94.9°), the coolest 22 August (55.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 84.6° | 84.1° | +0.3° |
| 18 August – 27 August | 81.9° | 82.5° | -0.3° |
| 28 August – 6 September | at normal | 81.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Hagerstown (6 mi).
0
Mount Aetna, Sunday, 9 August
Mostly clear. High 87°, low 71°.
0.34
Mount Aetna, Monday, 10 August
Rain. High 95°, low 70°.
0.35Mount Aetna, Tuesday, 11 August
Heavy rain. High 86°, low 66°.
0.05Mount Aetna, Wednesday, 12 August
Light rain. High 90°, low 68°.
0.02Mount Aetna, Thursday, 13 August
Light rain. High 83°, low 64°.
0Mount Aetna, Friday, 14 August
Overcast. High 78°, low 57°.
0
Mount Aetna, Saturday, 15 August
Clear. High 82°, low 57°.
0
Mount Aetna, Sunday, 16 August
Partly cloudy. High 83°, low 57°.
0.06Mount Aetna, Monday, 17 August
Light rain. High 77°, low 66°.
0.2Mount Aetna, Tuesday, 18 August
Rain. High 77°, low 65°.
0.07Mount Aetna, Wednesday, 19 August
Light rain. High 88°, low 64°.
0.13Mount Aetna, Thursday, 20 August
Light rain. High 78°, low 65°.
0Mount Aetna, Friday, 21 August
Clear. High 81°, low 55°.
0Mount Aetna, Saturday, 22 August
Partly cloudy. High 83°, low 55°.
0.01Mount Aetna, Sunday, 23 August
Light rain. High 85°, low 66°.
0.06Mount Aetna, Monday, 24 August
Climate normal for this date — 60-year average.
0.05Mount Aetna, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Mount Aetna, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Mount Aetna, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Mount Aetna, Friday, 28 August
Climate normal for this date — 60-year average.
0.06Mount Aetna, Saturday, 29 August
Climate normal for this date — 60-year average.
0.04Mount Aetna, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Mount Aetna, Monday, 31 August
Climate normal for this date — 60-year average.
0.11Mount Aetna, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.08Mount Aetna, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.05Mount Aetna, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Mount Aetna, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Mount Aetna, Saturday, 5 September
Climate normal for this date — 60-year average.
0.21Mount Aetna, Sunday, 6 September
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 Mount Aetna, MD 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 Mount Aetna, MD 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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