10-day forecast for Costello, PA: 46° to 85°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
84°
Best day: Sunday, August 9
85° · 0.23 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1082° / 64°0.07
Morning68°feels 69°
Afternoon79°feels 79°
Evening76°feels 77°
Overnight66°feels 66°
82 °
Costello, Monday, 10 August
Light rain. High 82°, low 64°.
Pressure30.00 inHg
Wind7 mph SW
Humidity83%
Visibility6.2 mi
Dew point65°
Tue, 1185° / 61°0.23
Morning66°feels 67°
Afternoon84°feels 83°
Evening69°feels 69°
Overnight63°feels 64°
85 °
Costello, Tuesday, 11 August
Rain. High 85°, low 61°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity54%
Visibility6.2 mi
Dew point59°
Wed, 1283° / 62°0.01
Morning66°feels 66°
Afternoon80°feels 80°
Evening69°feels 70°
Overnight64°feels 64°
83 °
Costello, Wednesday, 12 August
Light rain. High 83°, low 62°.
Pressure29.77 inHg
Wind8.6 mph W
Humidity66%
Visibility6.2 mi
Dew point64°
Thu, 1374° / 57°0.05
Morning65°feels 65°
Afternoon72°feels 71°
Evening62°feels 61°
Overnight61°feels 61°
74 °
Costello, Thursday, 13 August
Light rain. High 74°, low 57°.
Pressure29.85 inHg
Wind14 mph NW
Humidity36%
Visibility—
Dew point44°
Fri, 1471° / 48°0
Morning58°feels 57°
Afternoon69°feels 68°
Evening59°feels 58°
Overnight53°feels 52°
71 °
Costello, Friday, 14 August
Mostly clear. High 71°, low 48°.
Pressure30.06 inHg
Wind11.9 mph NW
Humidity38%
Visibility—
Dew point42°
Sat, 1572° / 46°0
Morning56°feels 55°
Afternoon70°feels 69°
Evening58°feels 57°
Overnight52°feels 50°
72 °
Costello, Saturday, 15 August
Partly cloudy. High 72°, low 46°.
Pressure30.21 inHg
Wind10 mph NW
Humidity37%
Visibility—
Dew point42°
Sun, 1675° / 48°0
Morning61°feels 60°
Afternoon73°feels 72°
Evening61°feels 60°
Overnight56°feels 55°
75 °
Costello, Sunday, 16 August
Overcast. High 75°, low 48°.
Pressure30.15 inHg
Wind2.1 mph W
Humidity38%
Visibility—
Dew point45°
Mon, 1779° / 54°0
Morning65°feels 64°
Afternoon77°feels 77°
Evening64°feels 64°
Overnight59°feels 59°
79 °
Costello, Monday, 17 August
Overcast. High 79°, low 54°.
Pressure30.00 inHg
Wind7.1 mph NW
Humidity38%
Visibility—
Dew point49°
Tue, 1881° / 56°0
Morning66°feels 66°
Afternoon79°feels 78°
Evening67°feels 67°
Overnight60°feels 60°
81 °
Costello, Tuesday, 18 August
Clear. High 81°, low 56°.
Pressure30.03 inHg
Wind4.6 mph NE
Humidity38%
Visibility—
Dew point50°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Costello, PA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.