Weather in Norristown, PA
Norristown, Thursday, 29 October, 05:42
Clear. Feels like 49°. High 71°, low 47°.
Monthly outlook for Norristown, PA: average high 60.6°, average low 48.4°. That is 1.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 29 October (70.6°), the coolest 1 November (41.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 65.5° | 58.9° | +3.7° |
| 8 November – 17 November | 52.4° | 54° | -0.9° |
| 18 November – 27 November | at normal | 51° | — |
October records over 66 years
0
Norristown, Friday, 30 October
Clear. High 71°, low 48°.
0
Norristown, Saturday, 31 October
Partly cloudy. High 58°, low 43°.
0Norristown, Sunday, 1 November
Clear. High 62°, low 42°.
0Norristown, Monday, 2 November
Clear. High 69°, low 46°.
0
Norristown, Tuesday, 3 November
Overcast. High 68°, low 50°.
0.01
Norristown, Wednesday, 4 November
Light rain. High 61°, low 58°.
0.02Norristown, Thursday, 5 November
Light rain. High 67°, low 59°.
1.09Norristown, Friday, 6 November
Heavy rain. High 67°, low 60°.
0Norristown, Saturday, 7 November
Overcast. High 60°, low 50°.
0.01Norristown, Sunday, 8 November
Light rain. High 50°, low 45°.
0.16Norristown, Monday, 9 November
Light rain. High 48°, low 46°.
0.01Norristown, Tuesday, 10 November
Light rain. High 58°, low 46°.
0
Norristown, Wednesday, 11 November
Mostly clear. High 53°, low 45°.
0.13Norristown, Thursday, 12 November
Light rain. High 52°, low 46°.
0.09Norristown, Friday, 13 November
Light rain. High 53°, low 44°.
0.07Norristown, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Norristown, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Norristown, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Norristown, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Norristown, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Norristown, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Norristown, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Norristown, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11
Norristown, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Norristown, Monday, 23 November
Climate normal for this date — 60-year average.
0.1Norristown, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Norristown, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.16Norristown, Thursday, 26 November
Climate normal for this date — 60-year average.
0.11Norristown, Friday, 27 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 Norristown, 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 Norristown, 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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