Weather in Mount Rainier, MD
Mount Rainier, Saturday, 8 August, 15:25
Partly cloudy. Feels like 106°. High 93°, low 72°.
Monthly outlook for Mount Rainier, MD: average high 85.2°, average low 68.8°. That is 0.1° above the climate normal for August. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 10 August (94.3°), the coolest 15 August (60.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 87.6° | 85.7° | +1.1° |
| 18 August – 27 August | 81.1° | 84.1° | -1.7° |
| 28 August – 6 September | at normal | 83.4° | — |
August records over 66 years
0Mount Rainier, Sunday, 9 August
Partly cloudy. High 91°, low 72°.
0.02
Mount Rainier, Monday, 10 August
Light rain. High 94°, low 73°.
0.04Mount Rainier, Tuesday, 11 August
Light rain. High 93°, low 73°.
0.01Mount Rainier, Wednesday, 12 August
Light rain. High 92°, low 74°.
0.04Mount Rainier, Thursday, 13 August
Light rain. High 91°, low 74°.
0.83Mount Rainier, Friday, 14 August
Heavy rain. High 73°, low 63°.
0
Mount Rainier, Saturday, 15 August
Clear. High 80°, low 61°.
0Mount Rainier, Sunday, 16 August
Clear. High 81°, low 63°.
0
Mount Rainier, Monday, 17 August
Mostly clear. High 88°, low 65°.
0.25Mount Rainier, Tuesday, 18 August
Rain. High 73°, low 70°.
0.03Mount Rainier, Wednesday, 19 August
Light rain. High 89°, low 71°.
0
Mount Rainier, Thursday, 20 August
Overcast. High 86°, low 68°.
0.47Mount Rainier, Friday, 21 August
Rain. High 74°, low 69°.
0Mount Rainier, Saturday, 22 August
Mostly clear. High 88°, low 68°.
0Mount Rainier, Sunday, 23 August
Overcast. High 78°, low 64°.
0.09Mount Rainier, Monday, 24 August
Climate normal for this date — 60-year average.
0.07Mount Rainier, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Mount Rainier, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Mount Rainier, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16Mount Rainier, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Mount Rainier, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Mount Rainier, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Mount Rainier, Monday, 31 August
Climate normal for this date — 60-year average.
0.14Mount Rainier, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Mount Rainier, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Mount Rainier, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Mount Rainier, Friday, 4 September
Climate normal for this date — 60-year average.
0.13Mount Rainier, Saturday, 5 September
Climate normal for this date — 60-year average.
0.23Mount Rainier, 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 Mount Rainier, 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 Mount Rainier, 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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