Weather in Riverdale Heights, MD
Riverdale Heights, Sunday, 9 August, 10:25
Overcast. Feels like 92°. High 92°, low 73°.
Monthly outlook for Riverdale Heights, MD: average high 87.2°, average low 68.8°. That is 1.5° above the climate normal for August. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 10 August (94.6°), the coolest 15 August (60.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 86.6° | 85.4° | +0.7° |
| 19 August – 28 August | 88.4° | 83.9° | +2.5° |
| 29 August – 7 September | at normal | 82.8° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Bladensburg (2 mi).
0
Riverdale Heights, Monday, 10 August
Light rain. High 95°, low 76°.
0.04Riverdale Heights, Tuesday, 11 August
Light rain. High 92°, low 71°.
0.01Riverdale Heights, Wednesday, 12 August
Light rain. High 89°, low 74°.
0
Riverdale Heights, Thursday, 13 August
Partly cloudy. High 90°, low 75°.
0.11Riverdale Heights, Friday, 14 August
Light rain. High 74°, low 62°.
0Riverdale Heights, Saturday, 15 August
Overcast. High 81°, low 60°.
0.01Riverdale Heights, Sunday, 16 August
Light rain. High 79°, low 61°.
0Riverdale Heights, Monday, 17 August
Overcast. High 86°, low 68°.
0Riverdale Heights, Tuesday, 18 August
Partly cloudy. High 89°, low 67°.
0.33Riverdale Heights, Wednesday, 19 August
Rain. High 87°, low 69°.
0
Riverdale Heights, Thursday, 20 August
Clear. High 89°, low 68°.
0Riverdale Heights, Friday, 21 August
Overcast. High 85°, low 68°.
0Riverdale Heights, Saturday, 22 August
Clear. High 93°, low 70°.
0
Riverdale Heights, Sunday, 23 August
Mostly clear. High 91°, low 74°.
0Riverdale Heights, Monday, 24 August
Clear. High 86°, low 66°.
0.07Riverdale Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Riverdale Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Riverdale Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16Riverdale Heights, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Riverdale Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Riverdale Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Riverdale Heights, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Riverdale Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Riverdale Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Riverdale Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Riverdale Heights, Friday, 4 September
Climate normal for this date — 60-year average.
0.13Riverdale Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
0.25Riverdale Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Riverdale Heights, Monday, 7 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 Riverdale Heights, 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 Riverdale Heights, 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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