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☀️ Cornwall weather
Clear sky. .
Feels like 29° Wind 16 km/h W Humidity 44% Pressure 1012 hPa UV 1 Air Fair ☀ 06:20 - 19:57
Right now it is 28° in Cornwall with clear skies and today's high is 29° with an overnight low of 17° . The sun rises at 06:20 and sets at 19:57, giving 13h 37m of daylight. Over the coming week highs range from 21° to 27° .
Cornwall is in Pennsylvania, United States, sitting 189 m above sea level, with a population of about 4,000. Local time is America/New_York (UTC−4), and every time on this page is shown in it.
Next 24 hours - temperature
20°
25°
29°
29°
21°
14:00 · 28° · 0 mm
15:00 · 28.4° · 0 mm
16:00 · 28.6° · 0 mm
17:00 · 28.6° · 0 mm
18:00 · 28.3° · 0 mm
19:00 · 27.2° · 0 mm
20:00 · 25.5° · 0 mm
21:00 · 24.4° · 0 mm
22:00 · 23.8° · 0 mm
23:00 · 23° · 0 mm
00:00 · 22.4° · 0 mm
01:00 · 22.5° · 0 mm
02:00 · 22° · 0 mm
03:00 · 21.1° · 0 mm
04:00 · 21° · 0 mm
05:00 · 20.9° · 0 mm
06:00 · 20.7° · 0 mm
07:00 · 20.9° · 0 mm
08:00 · 22.8° · 0 mm
09:00 · 22.6° · 0 mm
10:00 · 24° · 0 mm
11:00 · 24.3° · 0 mm
12:00 · 25.1° · 0 mm
13:00 · 25.7° · 0 mm
Precipitation
14:00 · 0 mm
14:00
15:00 · 0 mm
16:00 · 0 mm
17:00 · 0 mm
17:00
18:00 · 0 mm
19:00 · 0 mm
20:00 · 0 mm
20:00
21:00 · 0 mm
22:00 · 0 mm
23:00 · 0 mm
23:00
00:00 · 0 mm
01:00 · 0 mm
02:00 · 0 mm
02:00
03:00 · 0 mm
04:00 · 0 mm
05:00 · 0 mm
05:00
06:00 · 0 mm
07:00 · 0 mm
08:00 · 0 mm
08:00
09:00 · 0 mm
10:00 · 0 mm
11:00 · 0 mm
11:00
12:00 · 0 mm
13:00 · 0 mm
Hour by hour
TIME TEMP FEELS RAIN CONDITIONS
14:00
☀️
28°
26.3°
-
Clear sky
15:00
☀️
28.4°
27.2°
-
Clear sky
16:00
☁️
28.6°
27.4°
-
Overcast
17:00
☁️
28.6°
27.6°
-
Overcast
18:00
⛅
28.3°
27.4°
-
Partly cloudy
19:00
☀️
27.2°
27°
-
Clear sky
20:00
☀️
25.5°
26.1°
-
Clear sky
21:00
☀️
24.4°
25.5°
-
Clear sky
22:00
☀️
23.8°
24.7°
-
Clear sky
23:00
☀️
23°
23.9°
-
Clear sky
00:00
☀️
22.4°
23.4°
-
Clear sky
01:00
☁️
22.5°
22.8°
-
Overcast
☀️
TodayAugust 19th
Avg 23° Low 17° at 06:00
High 29° at 16:00
Wind ~16 km/h
Clear
Clear
00:00
20°
02:00
19°
04:00
17°
06:00
17°
08:00
19°
10:00
24°
12:00
27°
14:00
28°
16:00
29°
18:00
28°
20:00
26°
22:00
24°
🌦️
ThursdayAugust 20th
Avg 22° Low 19° at 23:00
High 26° at 13:00
0.4 mm rain Wind ~28 km/h
Clear
Cloudy
Clear
00:00
22°
02:00
22°
04:00
21°
06:00
21°
08:00
23°
10:00
24°
12:00
25°
14:00
25°
16:00
22°
0.4mm
18:00
22°
20:00
21°
22:00
19°
🌦️
FridayAugust 21st
Avg 21° Low 16° at 06:00
High 26° at 15:00
1.4 mm rain Wind ~14 km/h
Clear
Clear
Rain
00:00
18°
02:00
17°
04:00
17°
06:00
16°
08:00
17°
10:00
21°
12:00
24°
14:00
25°
16:00
25°
0.2mm
18:00
24°
0.3mm
20:00
21°
0.2mm
22:00
21°
🌧️
SaturdayAugust 22nd
Avg 19° Low 18° at 21:00
High 21° at 17:00
9.2 mm rain Wind ~12 km/h
Cloudy
Rain
Cloudy
00:00
21°
0.2mm
02:00
20°
04:00
19°
0.1mm
06:00
19°
0.1mm
08:00
19°
3.1mm
10:00
19°
0.3mm
12:00
20°
0.3mm
14:00
20°
16:00
21°
18:00
20°
0.2mm
20:00
18°
22:00
18°
🌧️
SundayAugust 23rd
Avg 21° Low 16° at 06:00
High 27° at 16:00
3 mm rain Wind ~16 km/h
Clear
Cloudy
Rain
Clear
00:00
17°
02:00
16°
04:00
16°
06:00
16°
08:00
18°
10:00
22°
12:00
25°
1.1mm
14:00
27°
0.2mm
16:00
27°
0.1mm
18:00
25°
0.2mm
20:00
21°
22:00
19°
☀️
MondayAugust 24th
Avg 20° Low 14° at 06:00
High 27° at 16:00
Wind ~16 km/h
Clear
00:00
18°
02:00
16°
04:00
15°
06:00
14°
08:00
17°
10:00
21°
12:00
24°
14:00
26°
16:00
27°
18:00
25°
20:00
19°
22:00
18°
☁️
TuesdayAugust 25th
Avg 18° Low 13° at 05:00
High 24° at 16:00
Wind ~15 km/h
Partly Cloudy
Cloudy
Clear
00:00
17°
02:00
15°
04:00
13°
06:00
13°
08:00
15°
10:00
18°
12:00
21°
14:00
24°
16:00
24°
18:00
22°
20:00
18°
22:00
16°
🌦️
WednesdayAugust 26th
Avg 19° Low 14° at 04:00
High 26° at 16:00
3.9 mm rain Wind ~11 km/h
Cloudy
Cloudy
Rain
00:00
15°
02:00
15°
04:00
14°
06:00
15°
08:00
17°
10:00
20°
12:00
23°
14:00
25°
16:00
26°
18:00
24°
0.4mm
20:00
20°
0.4mm
22:00
19°
0.9mm
🌧️
ThursdayAugust 27th
Avg 21° Low 18° at 04:00
High 25° at 16:00
3.6 mm rain Wind ~21 km/h
Rain
Cloudy
Rain
Cloudy
00:00
18°
1.1mm
02:00
18°
1.1mm
04:00
18°
06:00
18°
08:00
18°
10:00
21°
12:00
23°
14:00
24°
16:00
25°
0.1mm
18:00
23°
20:00
20°
22:00
21°
☁️
FridayAugust 28th
Avg 18° Low 16° at 23:00
High 21° at 14:00
Feels 19° Wind ~20 km/h
Cloudy
00:00
20°
02:00
17°
04:00
16°
06:00
17°
08:00
18°
10:00
19°
12:00
20°
14:00
21°
16:00
20°
18:00
19°
20:00
18°
22:00
17°
🌧️
SaturdayAugust 29th
Avg 18° Low 16° at 00:00
High 21° at 14:00
20.4 mm rain Feels 19° Wind ~23 km/h
Rain
00:00
16°
1.5mm
02:00
17°
1.5mm
04:00
18°
0.3mm
06:00
18°
0.8mm
08:00
17°
0.8mm
10:00
18°
0.1mm
12:00
20°
0.1mm
14:00
21°
0.1mm
16:00
20°
0.8mm
18:00
19°
0.6mm
20:00
18°
0.6mm
22:00
17°
2.6mm
🌧️
SundayAugust 30th
Avg 16° Low 15° at 23:00
High 17° at 00:00
4.5 mm rain Feels 15° Wind ~20 km/h
Rain
Cloudy
00:00
17°
1mm
02:00
17°
1mm
04:00
16°
0.5mm
06:00
16°
08:00
15°
10:00
15°
12:00
15°
14:00
16°
16:00
16°
18:00
16°
20:00
15°
22:00
15°
☁️
MondayAugust 31st
Avg 18° Low 15° at 01:00
High 23° at 17:00
Wind ~8 km/h
Cloudy
Partly Cloudy
Clear
00:00
15°
02:00
15°
04:00
15°
06:00
15°
08:00
15°
10:00
16°
12:00
19°
14:00
21°
16:00
23°
18:00
22°
20:00
19°
22:00
18°
☀️
TuesdaySeptember 1st
Avg 21° Low 16° at 04:00
High 27° at 16:00
Wind ~7 km/h
Clear
00:00
17°
02:00
17°
04:00
16°
06:00
16°
08:00
18°
10:00
21°
12:00
24°
14:00
26°
16:00
27°
18:00
25°
20:00
21°
22:00
20°
☀️
WednesdaySeptember 2nd
Avg 21° Low 17° at 04:00
High 27° at 16:00
Wind ~11 km/h
Clear
00:00
19°
02:00
18°
04:00
17°
06:00
17°
08:00
19°
10:00
22°
12:00
25°
14:00
27°
16:00
27°
18:00
25°
20:00
21°
22:00
19°
🌧️
ThursdaySeptember 3rd
Avg 22° Low 16° at 04:00
High 30° at 16:00
6.3 mm rain Feels 32° Wind ~11 km/h
Clear
Rain
00:00
18°
02:00
17°
04:00
16°
06:00
17°
08:00
19°
10:00
23°
12:00
26°
14:00
29°
16:00
30°
18:00
28°
20:00
24°
22:00
22°
2.1mm
Sun
☀️ Sunrise 06:20 · Sunset 19:57
13h 37m of daylight · America/New_York
Air quality
PM2.5 11.6 µg/m³ - Fair
Fine for almost everyone; unusually sensitive people may notice it on a long run.
Source: Copernicus CAMS, updated hourly.
Common questions about Cornwall weather
Will it rain in Cornwall today?
No rain is in the forecast for Cornwall today.
What is the temperature in Cornwall right now?
It is 28° in Cornwall right now. Today runs between a low of 17° and a high of 29° .
What time is sunrise and sunset in Cornwall?
The sun rises at 06:20 and sets at 19:57 local time in Cornwall today, giving 13h 37m of daylight.
What is the air quality in Cornwall?
PM2.5 in Cornwall is currently 11.6 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.
How accurate is the Cornwall forecast, and how far ahead does it go?
This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Cornwall best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.
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© 2026 WeatherMetro · Weather data: ECMWF, NOAA, DWD, Météo-France, ECCC, MeteoSwiss and others (CC-BY 4.0) · Air quality & history: Copernicus CAMS / C3S · Location data: GeoNames (CC-BY) · Alerts: NWS, MeteoAlarm, ECCC