14-day forecast · Cornwall
30-day outlook →TodaySep 2116°4°A mix of sun and cloudA few clouds13%
Day
A mix of sun and cloud. High 16. UV index 6 or high.
- Wind
- NE 15 km/h
- Precipitation
- 13% · 0 mm
- UV index (max)
- 6 High
- Air quality (AQHI)
- 2 · Low risk
Night
Partly cloudy. Becoming clear overnight. Low plus 4.
- Low
- 4°
- Wind
- NE 15 km/h
Sunrise6:44 AM
Sunset6:59 PM
Daylight12 h 15 min
Normal18° / 8°
TueSep 2216°5°SunnyClear10%
Day
Sunny. High 16. UV index 5 or moderate.
- Wind
- NE 15 km/h
- Precipitation
- 10% · 0 mm
- UV index (max)
- 5 Moderate
- Air quality (AQHI)
- 2 · Low risk
Night
Clear. Low plus 5.
- Low
- 5°
Sunrise6:46 AM
Sunset6:56 PM
Daylight12 h 10 min
WedSep 2319°5°SunnyClear12%
Day
Sunny. High 19.
- Precipitation
- 12% · 0 mm
- UV index (max)
- 4 Moderate
Night
Clear. Low plus 5.
- Low
- 5°
Sunrise6:47 AM
Sunset6:54 PM
Daylight12 h 7 min
ThuSep 2420°6°SunnyClear10%
Day
Sunny. High 20.
- Precipitation
- 10% · 0 mm
- UV index (max)
- 4 Moderate
Night
Clear. Low 6.
- Low
- 6°
Sunrise6:48 AM
Sunset6:53 PM
Daylight12 h 4 min
FriSep 2519°8°A mix of sun and cloudCloudy periods10%
Day
A mix of sun and cloud. High 19.
- Precipitation
- 10% · 0 mm
- UV index (max)
- 4 Moderate
Night
Cloudy periods. Low 8.
- Low
- 8°
Sunrise6:49 AM
Sunset6:51 PM
Daylight12 h 1 min
SatSep 2621°10°A mix of sun and cloudCloudy periods12%
Day
A mix of sun and cloud. High 21.
- Precipitation
- 12% · 0 mm
- UV index (max)
- 4 Moderate
Night
Cloudy periods. Low 10.
- Low
- 10°
Sunrise6:51 AM
Sunset6:49 PM
Daylight11 h 58 min
SunSep 2720°7°A mix of sun and cloud3%
Day
A mix of sun and cloud. High 20.
- Precipitation
- 3% · 0 mm
- UV index (max)
- 5 Moderate
Night
Low 7.
- Low
- 7°
Sunrise6:52 AM
Sunset6:47 PM
Daylight11 h 54 min
Days 8–14 · trend, lower confidence
MonSep 2819°5°Mostly cloudyNight low 5°8%
Day
Mostly cloudy. High 19.
- Wind
- NE 8 km/h
- Wind gusts
- 20 km/h
- Precipitation
- 8% · 0 mm
- UV index (max)
- 5 Moderate
Night
Low 5.
- Low
- 5°
Sunrise6:53 AM
Sunset6:45 PM
Daylight11 h 51 min
SourceExtended outlook
TueSep 2913°6°SunnyNight low 6°81%
Day
Sunny. High 13.
- Wind
- NE 10 km/h
- Wind gusts
- 28 km/h
- Precipitation
- 81% · 8 mm
- UV index (max)
- 3 Moderate
Night
Low 6.
- Low
- 6°
Sunrise6:54 AM
Sunset6:43 PM
Daylight11 h 48 min
SourceExtended outlook
WedSep 3014°11°FogNight low 11°96%
Day
Fog. High 14.
- Wind
- NE 11 km/h
- Wind gusts
- 28 km/h
- Precipitation
- 96% · 10 mm
- UV index (max)
- 3 Moderate
Night
Low 11.
- Low
- 11°
Sunrise6:56 AM
Sunset6:41 PM
Daylight11 h 45 min
SourceExtended outlook
ThuOct 117°9°SunnyNight low 9°14%
Day
Sunny. High 17.
- Wind
- E 12 km/h
- Wind gusts
- 26 km/h
- Precipitation
- 14% · 0 mm
- UV index (max)
- 5 Moderate
Night
Low 9.
- Low
- 9°
Sunrise6:57 AM
Sunset6:39 PM
Daylight11 h 42 min
SourceExtended outlook
FriOct 220°8°Mostly cloudyNight low 8°20%
Day
Mostly cloudy. High 20.
- Wind
- NE 9 km/h
- Wind gusts
- 17 km/h
- Precipitation
- 20% · 0 mm
- UV index (max)
- 5 Moderate
Night
Low 8.
- Low
- 8°
Sunrise6:58 AM
Sunset6:37 PM
Daylight11 h 39 min
SourceExtended outlook
SatOct 320°13°Mostly cloudyNight low 13°21%
Day
Mostly cloudy. High 20.
- Wind
- SW 13 km/h
- Wind gusts
- 25 km/h
- Precipitation
- 21% · 0 mm
- UV index (max)
- 4 Moderate
Night
Low 13.
- Low
- 13°
Sunrise6:59 AM
Sunset6:36 PM
Daylight11 h 36 min
SourceExtended outlook
SunOct 421°13°ShowersNight low 13°66%
Day
Showers. High 21.
- Wind
- NW 12 km/h
- Wind gusts
- 19 km/h
- Precipitation
- 66% · 1 mm
- UV index (max)
- 5 Moderate
Night
Low 13.
- Low
- 13°
Sunrise7:00 AM
Sunset6:34 PM
Daylight11 h 33 min
SourceExtended outlook
14 days at a glance
Today →| Day | Weather | High | Low | Precip | Wind | UV |
|---|---|---|---|---|---|---|
| Today Sep 21 | Partly cloudy | 16° | 4° | 13% · 0 mm | NE 15 km/h | 6 |
| Tue Sep 22 | Sunny | 16° | 5° | 10% · 0 mm | NE 15 km/h | 5 |
| Wed Sep 23 | Sunny | 19° | 5° | 12% · 0 mm | NE 17 km/h | 4 |
| Thu Sep 24 | Sunny | 20° | 6° | 10% · 0 mm | NE 18 km/h | 4 |
| Fri Sep 25 | Partly cloudy | 19° | 8° | 10% · 0 mm | NE 16 km/h | 4 |
| Sat Sep 26 | Partly cloudy | 21° | 10° | 12% · 0 mm | NE 22 km/h | 4 |
| Sun Sep 27 | Partly cloudy | 20° | 7° | 3% · 0 mm | NE 21 km/h | 5 |
| Mon Sep 28 | Mostly cloudy | 19° | 5° | 8% · 0 mm | NE 8 km/h | 5 |
| Tue Sep 29 | Sunny | 13° | 6° | 81% · 8 mm | NE 10 km/h | 3 |
| Wed Sep 30 | Fog | 14° | 11° | 96% · 10 mm | NE 11 km/h | 3 |
| Thu Oct 1 | Sunny | 17° | 9° | 14% · 0 mm | E 12 km/h | 5 |
| Fri Oct 2 | Mostly cloudy | 20° | 8° | 20% · 0 mm | NE 9 km/h | 5 |
| Sat Oct 3 | Mostly cloudy | 20° | 13° | 21% · 0 mm | SW 13 km/h | 4 |
| Sun Oct 4 | Showers | 21° | 13° | 66% · 1 mm | NW 12 km/h | 5 |
Weather map — Cornwall
Cornwall →Forecast: Environment and Climate Change Canada (Cornwall - Lancaster), issued 5:00 AM · Days 8–14: WeatherAPI.com · weather.gc.ca · 45.0181°N, 74.7281°W · Elevation 59 m · Population 48,821 · Time zone America/Toronto