Weather in Upper Marlboro, MD
Upper Marlboro, Sunday, 11 October, 18:28
Overcast. Feels like 69°. High 68°, low 61°.
Monthly outlook for Upper Marlboro, MD: average high 68.9°, average low 52.4°. That is 2° above the climate normal for October. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (84.1°), the coolest 18 October (34.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 68.9° | 66.4° | +1.4° |
| 21 October – 30 October | 69° | 62.8° | +3.4° |
| 31 October – 9 November | at normal | 60° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — District Heights (8 mi).
0.52
Upper Marlboro, Monday, 12 October
Heavy rain. High 72°, low 60°.
0
Upper Marlboro, Tuesday, 13 October
Clear. High 81°, low 57°.
0.02Upper Marlboro, Wednesday, 14 October
Light rain. High 84°, low 65°.
0Upper Marlboro, Thursday, 15 October
Overcast. High 68°, low 62°.
0.21Upper Marlboro, Friday, 16 October
Rain. High 79°, low 58°.
0Upper Marlboro, Saturday, 17 October
Clear. High 54°, low 38°.
0Upper Marlboro, Sunday, 18 October
Clear. High 53°, low 34°.
0Upper Marlboro, Monday, 19 October
Clear. High 62°, low 36°.
0Upper Marlboro, Tuesday, 20 October
Clear. High 69°, low 43°.
0.01Upper Marlboro, Wednesday, 21 October
Light rain. High 66°, low 49°.
0Upper Marlboro, Thursday, 22 October
Overcast. High 65°, low 54°.
0Upper Marlboro, Friday, 23 October
Overcast. High 65°, low 52°.
0
Upper Marlboro, Saturday, 24 October
Mostly clear. High 75°, low 59°.
0Upper Marlboro, Sunday, 25 October
Overcast. High 78°, low 59°.
0Upper Marlboro, Monday, 26 October
Clear. High 65°, low 50°.
0.15
Upper Marlboro, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.1Upper Marlboro, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.24Upper Marlboro, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Upper Marlboro, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Upper Marlboro, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1Upper Marlboro, Sunday, 1 November
Climate normal for this date — 60-year average.
0.11Upper Marlboro, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Upper Marlboro, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.12Upper Marlboro, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Upper Marlboro, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Upper Marlboro, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Upper Marlboro, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Upper Marlboro, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Upper Marlboro, 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 Upper Marlboro, 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 Upper Marlboro, 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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