Weather in Radnor, PA
Radnor, Wednesday, 21 October, 03:18
Clear. Feels like 48°. High 64°, low 43°.
Monthly outlook for Radnor, PA: average high 58°, average low 42.2°. That is 1.1° below the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 27 October (66.8°), the coolest 4 November (36.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 59.9° | 60.5° | -0.3° |
| 31 October – 9 November | 54.8° | 57.6° | -1.6° |
| 10 November – 19 November | at normal | 52.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bryn Mawr (3 mi).
0
Radnor, Thursday, 22 October
Clear. High 66°, low 38°.
0Radnor, Friday, 23 October
Clear. High 57°, low 43°.
0Radnor, Saturday, 24 October
Clear. High 58°, low 37°.
0Radnor, Sunday, 25 October
Clear. High 62°, low 39°.
0Radnor, Monday, 26 October
Clear. High 66°, low 40°.
0
Radnor, Tuesday, 27 October
Overcast. High 67°, low 51°.
0Radnor, Wednesday, 28 October
Clear. High 53°, low 43°.
0.19
Radnor, Thursday, 29 October
Rain. High 50°, low 44°.
0Radnor, Friday, 30 October
Overcast. High 56°, low 40°.
0
Radnor, Saturday, 31 October
Partly cloudy. High 54°, low 40°.
0
Radnor, Sunday, 1 November
Mostly clear. High 63°, low 45°.
1.15Radnor, Monday, 2 November
Heavy rain. High 63°, low 56°.
0Radnor, Tuesday, 3 November
Partly cloudy. High 52°, low 42°.
0Radnor, Wednesday, 4 November
Clear. High 48°, low 36°.
0Radnor, Thursday, 5 November
Clear. High 48°, low 38°.
0.07Radnor, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Radnor, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Radnor, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Radnor, Monday, 9 November
Climate normal for this date — 60-year average.
0.16
Radnor, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Radnor, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.19Radnor, Thursday, 12 November
Climate normal for this date — 60-year average.
0.15Radnor, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Radnor, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Radnor, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Radnor, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Radnor, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Radnor, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Radnor, Thursday, 19 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 Radnor, 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 Radnor, 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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