Weather in Sellman, MD
Sellman, Sunday, 11 October, 06:53
Heavy rain. Feels like 58°. High 66°, low 56°.
Monthly outlook for Sellman, MD: average high 63°, average low 45.6°. That is 0.9° below the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (78.9°), the coolest 19 October (29.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 64.4° | 65.8° | -0.8° |
| 21 October – 30 October | 60.8° | 62.1° | -0.7° |
| 31 October – 9 November | at normal | 59.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Poolesville (5 mi).
0.07Sellman, Monday, 12 October
Rain. High 73°, low 53°.
0
Sellman, Tuesday, 13 October
Clear. High 79°, low 55°.
0.02Sellman, Wednesday, 14 October
Light rain. High 79°, low 65°.
0
Sellman, Thursday, 15 October
Overcast. High 66°, low 55°.
0.34Sellman, Friday, 16 October
Rain. High 69°, low 57°.
0.17Sellman, Saturday, 17 October
Light rain. High 56°, low 44°.
0Sellman, Sunday, 18 October
Clear. High 46°, low 35°.
0Sellman, Monday, 19 October
Clear. High 52°, low 29°.
0
Sellman, Tuesday, 20 October
Mostly clear. High 58°, low 34°.
0Sellman, Wednesday, 21 October
Clear. High 62°, low 39°.
0Sellman, Thursday, 22 October
Clear. High 63°, low 41°.
0Sellman, Friday, 23 October
Clear. High 66°, low 45°.
0Sellman, Saturday, 24 October
Clear. High 62°, low 41°.
0Sellman, Sunday, 25 October
Clear. High 58°, low 42°.
0Sellman, Monday, 26 October
Overcast. High 54°, low 37°.
0.17
Sellman, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.09Sellman, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.2Sellman, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Sellman, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Sellman, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Sellman, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12
Sellman, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Sellman, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Sellman, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Sellman, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Sellman, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Sellman, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Sellman, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Sellman, Monday, 9 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 Sellman, 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 Sellman, 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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