Weather in King of Prussia, PA
King of Prussia, Sunday, 9 August, 14:28
Clear. Feels like 97°. High 90°, low 72°.
Monthly outlook for King of Prussia, PA: average high 83°, average low 66.8°. That is 0.6° above the climate normal for August. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 9 August (90.1°), the coolest 15 August (59.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82° | 82.7° | -0.4° |
| 19 August – 28 August | 84.7° | 81.3° | +1.9° |
| 29 August – 7 September | at normal | 80° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Bryn Mawr (6 mi).
0
King of Prussia, Monday, 10 August
Light rain. High 90°, low 72°.
0.02King of Prussia, Tuesday, 11 August
Light rain. High 90°, low 72°.
0.02King of Prussia, Wednesday, 12 August
Light rain. High 86°, low 71°.
0King of Prussia, Thursday, 13 August
Light rain. High 85°, low 71°.
0
King of Prussia, Friday, 14 August
Overcast. High 74°, low 65°.
0
King of Prussia, Saturday, 15 August
Partly cloudy. High 77°, low 59°.
0King of Prussia, Sunday, 16 August
Overcast. High 77°, low 60°.
0.15King of Prussia, Monday, 17 August
Light rain. High 68°, low 64°.
0King of Prussia, Tuesday, 18 August
Overcast. High 83°, low 61°.
0.05King of Prussia, Wednesday, 19 August
Light rain. High 84°, low 68°.
0.01King of Prussia, Thursday, 20 August
Light rain. High 84°, low 69°.
0King of Prussia, Friday, 21 August
Clear. High 83°, low 62°.
0King of Prussia, Saturday, 22 August
Clear. High 89°, low 67°.
0.07King of Prussia, Sunday, 23 August
Light rain. High 86°, low 73°.
0King of Prussia, Monday, 24 August
Clear. High 81°, low 64°.
0.06
King of Prussia, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06King of Prussia, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18
King of Prussia, Thursday, 27 August
Climate normal for this date — 60-year average.
0.24King of Prussia, Friday, 28 August
Climate normal for this date — 60-year average.
0.11King of Prussia, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06King of Prussia, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07King of Prussia, Monday, 31 August
Climate normal for this date — 60-year average.
0.14King of Prussia, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11King of Prussia, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.15King of Prussia, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09King of Prussia, Friday, 4 September
Climate normal for this date — 60-year average.
0.08King of Prussia, Saturday, 5 September
Climate normal for this date — 60-year average.
0.21King of Prussia, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11King of Prussia, 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 King of Prussia, PA 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 King of Prussia, PA 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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