Weather in Blackrock Mill, MD
Blackrock Mill, Friday, 30 October, 02:38
Clear. Feels like 52°. High 71°, low 49°.
Monthly outlook for Blackrock Mill, MD: average high 60.2°, average low 46.2°. That is 1.6° above the climate normal for October. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 3 November (71.5°), the coolest 12 November (33.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 65.1° | 58.9° | +3.4° |
| 9 November – 18 November | 51.9° | 53.9° | -1.1° |
| 19 November – 28 November | at normal | 51.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Germantown (4 mi).
0
Blackrock Mill, Saturday, 31 October
Overcast. High 61°, low 45°.
0Blackrock Mill, Sunday, 1 November
Overcast. High 62°, low 48°.
0Blackrock Mill, Monday, 2 November
Overcast. High 69°, low 45°.
0
Blackrock Mill, Tuesday, 3 November
Partly cloudy. High 72°, low 48°.
0
Blackrock Mill, Wednesday, 4 November
Clear. High 69°, low 49°.
0.87
Blackrock Mill, Thursday, 5 November
Rain. High 64°, low 56°.
0.49Blackrock Mill, Friday, 6 November
Rain. High 69°, low 60°.
0Blackrock Mill, Saturday, 7 November
Overcast. High 60°, low 49°.
0Blackrock Mill, Sunday, 8 November
Clear. High 55°, low 40°.
0.22Blackrock Mill, Monday, 9 November
Light rain. High 57°, low 45°.
0.07Blackrock Mill, Tuesday, 10 November
Light rain. High 54°, low 50°.
0.01Blackrock Mill, Wednesday, 11 November
Light rain. High 48°, low 39°.
0Blackrock Mill, Thursday, 12 November
Overcast. High 49°, low 33°.
0.21Blackrock Mill, Friday, 13 November
Light rain. High 47°, low 42°.
0
Blackrock Mill, Saturday, 14 November
Mostly clear. High 57°, low 41°.
0.09Blackrock Mill, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12Blackrock Mill, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Blackrock Mill, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Blackrock Mill, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.1Blackrock Mill, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Blackrock Mill, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Blackrock Mill, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11Blackrock Mill, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Blackrock Mill, Monday, 23 November
Climate normal for this date — 60-year average.
0.14
Blackrock Mill, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Blackrock Mill, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.13Blackrock Mill, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Blackrock Mill, Friday, 27 November
Climate normal for this date — 60-year average.
0.19Blackrock Mill, Saturday, 28 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 Blackrock Mill, 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 Blackrock Mill, 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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