Weather in Glen Arm, MD
Glen Arm, Thursday, 29 October, 04:03
Overcast. Feels like 50°. High 70°, low 47°.
Monthly outlook for Glen Arm, MD: average high 60.4°, average low 47.8°. That is 1.8° above the climate normal for October. Precipitation is expected on 4 days (about 2.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 30 October (70.2°), the coolest 13 November (41.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 65.4° | 58.7° | +3.7° |
| 8 November – 17 November | 52° | 53.9° | -1.1° |
| 18 November – 27 November | at normal | 50.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Parkville (6 mi).
0
Glen Arm, Friday, 30 October
Clear. High 70°, low 51°.
0Glen Arm, Saturday, 31 October
Overcast. High 59°, low 45°.
0
Glen Arm, Sunday, 1 November
Mostly clear. High 62°, low 45°.
0Glen Arm, Monday, 2 November
Clear. High 68°, low 47°.
0Glen Arm, Tuesday, 3 November
Overcast. High 68°, low 49°.
0.01
Glen Arm, Wednesday, 4 November
Light rain. High 65°, low 57°.
0.22Glen Arm, Thursday, 5 November
Rain. High 66°, low 59°.
2.24Glen Arm, Friday, 6 November
Heavy rain. High 67°, low 59°.
0Glen Arm, Saturday, 7 November
Overcast. High 59°, low 47°.
0Glen Arm, Sunday, 8 November
Overcast. High 47°, low 44°.
0Glen Arm, Monday, 9 November
Overcast. High 48°, low 42°.
0.02Glen Arm, Tuesday, 10 November
Light rain. High 57°, low 43°.
0
Glen Arm, Wednesday, 11 November
Partly cloudy. High 53°, low 45°.
0.15Glen Arm, Thursday, 12 November
Light rain. High 54°, low 44°.
0.09Glen Arm, Friday, 13 November
Light rain. High 52°, low 41°.
0.07Glen Arm, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Glen Arm, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Glen Arm, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Glen Arm, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Glen Arm, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.1Glen Arm, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Glen Arm, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Glen Arm, Saturday, 21 November
Climate normal for this date — 60-year average.
0.13Glen Arm, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Glen Arm, Monday, 23 November
Climate normal for this date — 60-year average.
0.13Glen Arm, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.11
Glen Arm, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.15Glen Arm, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Glen Arm, Friday, 27 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 Glen Arm, 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 Glen Arm, 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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