Weather in San Mar, MD
San Mar, Monday, 26 October, 07:34
Clear. Feels like 41°. High 70°, low 40°.
Monthly outlook for San Mar, MD: average high 61.6°, average low 45.8°. That is 1.8° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 30 October (73.9°), the coolest 9 November (36.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 64.4° | 59.7° | +2.6° |
| 5 November – 14 November | 56.9° | 54.8° | +1.2° |
| 15 November – 24 November | at normal | 50.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Hagerstown (7 mi).
0San Mar, Tuesday, 27 October
Clear. High 68°, low 43°.
0
San Mar, Wednesday, 28 October
Partly cloudy. High 65°, low 49°.
0San Mar, Thursday, 29 October
Clear. High 70°, low 51°.
0San Mar, Friday, 30 October
Clear. High 74°, low 49°.
0
San Mar, Saturday, 31 October
Overcast. High 68°, low 50°.
0San Mar, Sunday, 1 November
Overcast. High 58°, low 50°.
0.48
San Mar, Monday, 2 November
Rain. High 60°, low 58°.
0.26San Mar, Tuesday, 3 November
Light rain. High 61°, low 53°.
0.09San Mar, Wednesday, 4 November
Light rain. High 51°, low 44°.
0San Mar, Thursday, 5 November
Overcast. High 53°, low 46°.
0.02San Mar, Friday, 6 November
Light rain. High 47°, low 43°.
0San Mar, Saturday, 7 November
Clear. High 65°, low 42°.
0.07San Mar, Sunday, 8 November
Light rain. High 58°, low 41°.
0San Mar, Monday, 9 November
Clear. High 59°, low 37°.
0San Mar, Tuesday, 10 November
Clear. High 59°, low 38°.
0.13San Mar, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17
San Mar, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07San Mar, Friday, 13 November
Climate normal for this date — 60-year average.
0.07
San Mar, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11San Mar, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12San Mar, Monday, 16 November
Climate normal for this date — 60-year average.
0.08San Mar, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06San Mar, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09San Mar, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07San Mar, Friday, 20 November
Climate normal for this date — 60-year average.
0.11San Mar, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11San Mar, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06San Mar, Monday, 23 November
Climate normal for this date — 60-year average.
0.13San Mar, Tuesday, 24 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 San Mar, 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 San Mar, 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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