10-day forecast for New Castle, NY: 55° to 87°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
87°
Best day: Sunday, August 9
87° · 0.14 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1086° / 68°0.03
Morning71°feels 71°
Afternoon86°feels 84°
Evening75°feels 75°
Overnight69°feels 69°
86 °
New Castle, Monday, 10 August
Light rain. High 86°, low 68°.
Pressure29.97 inHg
Wind5.7 mph SW
Humidity40%
Visibility6.2 mi
Dew point59°
Tue, 1187° / 68°0.14
Morning71°feels 73°
Afternoon87°feels 85°
Evening73°feels 73°
Overnight72°feels 73°
87 °
New Castle, Tuesday, 11 August
Rain. High 87°, low 68°.
Pressure29.83 inHg
Wind7.7 mph NW
Humidity46%
Visibility6.2 mi
Dew point61°
Wed, 1281° / 64°0.01
Morning67°feels 67°
Afternoon78°feels 78°
Evening71°feels 71°
Overnight67°feels 67°
81 °
New Castle, Wednesday, 12 August
Light rain. High 81°, low 64°.
Pressure29.77 inHg
Wind3.2 mph N
Humidity64%
Visibility6.2 mi
Dew point59°
Thu, 1380° / 63°0.05
Morning73°feels 73°
Afternoon78°feels 78°
Evening68°feels 67°
Overnight66°feels 66°
80 °
New Castle, Thursday, 13 August
Light rain. High 80°, low 63°.
Pressure29.74 inHg
Wind13.3 mph NW
Humidity39%
Visibility—
Dew point52°
Fri, 1474° / 57°0
Morning60°feels 59°
Afternoon69°feels 68°
Evening70°feels 69°
Overnight58°feels 56°
74 °
New Castle, Friday, 14 August
Clear. High 74°, low 57°.
Pressure29.97 inHg
Wind13.6 mph NW
Humidity44%
Visibility—
Dew point44°
Sat, 1576° / 55°0
Morning60°feels 58°
Afternoon70°feels 69°
Evening74°feels 73°
Overnight59°feels 58°
76 °
New Castle, Saturday, 15 August
Clear. High 76°, low 55°.
Pressure30.09 inHg
Wind11.2 mph NW
Humidity43%
Visibility—
Dew point44°
Sun, 1677° / 55°0
Morning60°feels 59°
Afternoon73°feels 72°
Evening71°feels 71°
Overnight60°feels 59°
77 °
New Castle, Sunday, 16 August
Overcast. High 77°, low 55°.
Pressure30.15 inHg
Wind6.4 mph N
Humidity40%
Visibility—
Dew point45°
Mon, 1782° / 59°0
Morning64°feels 62°
Afternoon74°feels 73°
Evening77°feels 77°
Overnight62°feels 62°
82 °
New Castle, Monday, 17 August
Overcast. High 82°, low 59°.
Pressure30.03 inHg
Wind7.8 mph W
Humidity48%
Visibility—
Dew point50°
Tue, 1883° / 59°0.01
Morning64°feels 64°
Afternoon77°feels 77°
Evening75°feels 75°
Overnight66°feels 66°
83 °
New Castle, Tuesday, 18 August
Light rain. High 83°, low 59°.
Pressure30.03 inHg
Wind4.5 mph NW
Humidity47%
Visibility—
Dew point53°
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 New Castle, NY 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.