Weather in Upper Marlboro, MD
Upper Marlboro, Saturday, 8 August, 15:15
Clear. Feels like 105°. High 93°, low 73°.
Monthly outlook for Upper Marlboro, MD: average high 83.7°, average low 67.4°. That is 0.2° below the climate normal for August. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 10 August (92.6°), the coolest 15 August (58.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 86.2° | 84.9° | +0.7° |
| 18 August – 27 August | 79.6° | 83.3° | -2.1° |
| 28 August – 6 September | at normal | 82.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — District Heights (8 mi).
0
Upper Marlboro, Sunday, 9 August
Overcast. High 91°, low 73°.
0.01
Upper Marlboro, Monday, 10 August
Light rain. High 93°, low 75°.
0.06Upper Marlboro, Tuesday, 11 August
Light rain. High 90°, low 71°.
0Upper Marlboro, Wednesday, 12 August
Overcast. High 90°, low 71°.
0.05Upper Marlboro, Thursday, 13 August
Light rain. High 90°, low 73°.
1.11Upper Marlboro, Friday, 14 August
Heavy rain. High 70°, low 61°.
0Upper Marlboro, Saturday, 15 August
Clear. High 78°, low 58°.
0Upper Marlboro, Sunday, 16 August
Clear. High 80°, low 60°.
0
Upper Marlboro, Monday, 17 August
Mostly clear. High 86°, low 62°.
0.29Upper Marlboro, Tuesday, 18 August
Rain. High 73°, low 69°.
0.04Upper Marlboro, Wednesday, 19 August
Light rain. High 87°, low 69°.
0Upper Marlboro, Thursday, 20 August
Overcast. High 82°, low 66°.
0.34Upper Marlboro, Friday, 21 August
Light rain. High 73°, low 68°.
0Upper Marlboro, Saturday, 22 August
Mostly clear. High 86°, low 69°.
0
Upper Marlboro, Sunday, 23 August
Partly cloudy. High 76°, low 62°.
0.08Upper Marlboro, Monday, 24 August
Climate normal for this date — 60-year average.
0.08Upper Marlboro, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Upper Marlboro, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Upper Marlboro, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16Upper Marlboro, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Upper Marlboro, Saturday, 29 August
Climate normal for this date — 60-year average.
0.05Upper Marlboro, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Upper Marlboro, Monday, 31 August
Climate normal for this date — 60-year average.
0.14Upper Marlboro, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Upper Marlboro, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Upper Marlboro, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Upper Marlboro, Friday, 4 September
Climate normal for this date — 60-year average.
0.14Upper Marlboro, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22Upper Marlboro, Sunday, 6 September
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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