Weather in Costello, PA
Costello, Monday, 19 October, 23:20
Clear. Feels like 37°. High 66°, low 33°.
Monthly outlook for Costello, PA: average high 56.4°, average low 36°. That is 1.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 19 October (66.2°), the coolest 29 October (27.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 59.2° | 54.6° | +2.6° |
| 29 October – 7 November | 51.8° | 51.3° | +0.3° |
| 8 November – 17 November | at normal | 46.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Austin (3 mi).
0
Costello, Tuesday, 20 October
Clear. High 65°, low 37°.
0Costello, Wednesday, 21 October
Clear. High 65°, low 30°.
0
Costello, Thursday, 22 October
Light rain. High 59°, low 38°.
0
Costello, Friday, 23 October
Mostly clear. High 51°, low 35°.
0Costello, Saturday, 24 October
Clear. High 59°, low 30°.
0Costello, Sunday, 25 October
Clear. High 64°, low 37°.
0.01Costello, Monday, 26 October
Light rain. High 62°, low 47°.
0.18Costello, Tuesday, 27 October
Light rain. High 57°, low 46°.
0.11
Costello, Wednesday, 28 October
Snow. High 43°, low 30°.
0.02Costello, Thursday, 29 October
Snow. High 41°, low 27°.
0
Costello, Friday, 30 October
Partly cloudy. High 47°, low 29°.
0
Costello, Saturday, 31 October
Overcast. High 53°, low 30°.
0Costello, Sunday, 1 November
Overcast. High 56°, low 35°.
0.07Costello, Monday, 2 November
Light rain. High 59°, low 41°.
0.69Costello, Tuesday, 3 November
Rain. High 55°, low 49°.
0.11Costello, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09
Costello, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Costello, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Costello, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Costello, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Costello, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Costello, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Costello, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.16Costello, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Costello, Friday, 13 November
Climate normal for this date — 60-year average.
0.12Costello, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Costello, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Costello, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Costello, Tuesday, 17 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 Costello, 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 Costello, 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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