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Now · 3:52 p.m.

Cornell Weather & Hourly Forecast

Canada · Ontario

Sunny
21°C
Sunny
Feels like: 18°C
💧 Humidity 43% 🌡 Pressure 1019 hPa 💨 Wind 13 km/h 👁 Visibility 47.9 km ☁ Clouds 0% ☀️ UV index 3.1 · Moderate 🌅 Sunrise 7:13 a.m. 🌇 Sunset 7:14 p.m.

Hourly Forecast for Cornell

Today
Sunny · 4:00 p.m. Sunny
21° 💧 0 mm 💨 13 km/h 43%1019 hPa
Overcast · 7:00 p.m. Overcast
17° 💧 0 mm 💨 8 km/h 62%1019 hPa
Overcast night · 10:00 p.m. Overcast night
15° 💧 0 mm 💨 15 km/h 68%1019 hPa
Tomorrow
Mostly clear night · 1:00 a.m. Mostly clear night
13° 💧 0 mm 💨 13 km/h 73%1018 hPa
Clear night · 4:00 a.m. Clear night
12° 💧 0 mm 💨 13 km/h 74%1017 hPa
Clear night · 7:00 a.m. Clear night
11° 💧 0 mm 💨 13 km/h 76%1017 hPa
Mostly sunny · 10:00 a.m. Mostly sunny
16° 💧 0 mm 💨 15 km/h 66%1017 hPa
Sunny · 1:00 p.m. Sunny
20° 💧 0 mm 💨 20 km/h 48%1015 hPa
Partly cloudy · 4:00 p.m. Partly cloudy
21° 💧 0 mm 💨 18 km/h 42%1013 hPa
Mostly sunny · 7:00 p.m. Mostly sunny
17° 💧 0 mm 💨 9 km/h 58%1014 hPa
Mostly clear night · 10:00 p.m. Mostly clear night
16° 💧 0 mm 💨 14 km/h 73%1014 hPa
Monday
Clear night · 1:00 a.m. Clear night
13° 💧 0 mm 💨 8 km/h 88%1015 hPa
Mostly cloudy night · 4:00 a.m. Mostly cloudy night
14° 💧 0.1 mm 💨 9 km/h 94%1014 hPa
Overcast night · 7:00 a.m. Overcast night
13° 💧 0.0 mm 💨 10 km/h 89%1015 hPa
Mostly cloudy · 10:00 a.m. Mostly cloudy
16° 💧 0 mm 💨 11 km/h 77%1016 hPa
Overcast · 1:00 p.m. Overcast
20° 💧 0 mm 💨 10 km/h 62%1015 hPa

15-Day Weather Outlook for Cornell

TomorrowTomorrow Partly cloudy Partly cloudy 21°/11° 💧 0 mm 💨 20 km/h
Monday 28 SeptemberMon 28 Sep. Mostly sunny Mostly sunny 21°/13° 💧 0 mm 💨 11 km/h
Tuesday 29 SeptemberTue 29 Sep. Mostly cloudy Mostly cloudy 22°/13° 💧 0 mm 💨 12 km/h
Wednesday 30 SeptemberWed 30 Sep. Light rain Light rain 19°/15° 💧 6.1 mm 💨 20 km/h
Thursday 1 OctoberThu 1 Oct. Overcast Overcast 23°/16° 💧 0.0 mm 💨 18 km/h
Friday 2 OctoberFri 2 Oct. Overcast Overcast 24°/15° 💧 0 mm 💨 13 km/h
Saturday 3 OctoberSat 3 Oct. Moderate rain Moderate rain 17°/13° 💧 6.9 mm 💨 26 km/h
Sunday 4 OctoberSun 4 Oct. Moderate rain Moderate rain 13°/11° 💧 22 mm 💨 29 km/h
Monday 5 OctoberMon 5 Oct. Partly cloudy Partly cloudy 15°/7° 💧 0 mm 💨 16 km/h
Tuesday 6 OctoberTue 6 Oct. Mostly sunny Mostly sunny 15°/5° 💧 0.0 mm 💨 10 km/h
Wednesday 7 OctoberWed 7 Oct. Moderate rain Moderate rain 17°/8° 💧 0.2 mm 💨 25 km/h
Thursday 8 OctoberThu 8 Oct. Moderate rain Moderate rain 12°/9° 💧 19 mm 💨 25 km/h
Friday 9 OctoberFri 9 Oct. Light rain Light rain 9°/8° 💧 3.4 mm 💨 26 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Cornell

Vertical axis: °C · Horizontal axis: hours · Color based on temperature
Sunny · 4:00 p.m.
21° Today 4:00 p.m.
Sunny · 5:00 p.m.
21° 5:00 p.m.
Overcast · 6:00 p.m.
20° 6:00 p.m.
Overcast · 7:00 p.m.
17° 7:00 p.m.
Overcast night · 8:00 p.m.
16° Today 8:00 p.m.
Overcast night · 9:00 p.m.
16° 9:00 p.m.
Overcast night · 10:00 p.m.
15° 10:00 p.m.
Overcast night · 11:00 p.m.
14° 11:00 p.m.
Partly cloudy night · 12:00 a.m.
14° Tomorrow 12:00 a.m.
Mostly clear night · 1:00 a.m.
13° 1:00 a.m.
Clear night · 2:00 a.m.
12° 2:00 a.m.
Clear night · 3:00 a.m.
12° 3:00 a.m.
Clear night · 4:00 a.m.
12° Tomorrow 4:00 a.m.
Clear night · 5:00 a.m.
11° 5:00 a.m.
Clear night · 6:00 a.m.
11° 6:00 a.m.
Clear night · 7:00 a.m.
11° 7:00 a.m.
Sunny · 8:00 a.m.
11° Tomorrow 8:00 a.m.
Mostly sunny · 9:00 a.m.
14° 9:00 a.m.
Mostly sunny · 10:00 a.m.
16° 10:00 a.m.
Mostly sunny · 11:00 a.m.
18° 11:00 a.m.
Mostly sunny · 12:00 p.m.
19° Tomorrow 12:00 p.m.
Sunny · 1:00 p.m.
20° 1:00 p.m.
Mostly sunny · 2:00 p.m.
21° 2:00 p.m.
Partly cloudy · 3:00 p.m.
21° 3:00 p.m.
Partly cloudy · 4:00 p.m.
21° Tomorrow 4:00 p.m.
Partly cloudy · 5:00 p.m.
21° 5:00 p.m.
Partly cloudy · 6:00 p.m.
20° 6:00 p.m.
Mostly sunny · 7:00 p.m.
17° 7:00 p.m.
Partly cloudy night · 8:00 p.m.
16° Tomorrow 8:00 p.m.
Partly cloudy night · 9:00 p.m.
16° 9:00 p.m.
Mostly clear night · 10:00 p.m.
16° 10:00 p.m.
Mostly clear night · 11:00 p.m.
15° 11:00 p.m.
Mostly clear night · 12:00 a.m.
14° Monday 12:00 a.m.
Clear night · 1:00 a.m.
13° 1:00 a.m.
Mostly clear night · 2:00 a.m.
13° 2:00 a.m.
Mostly cloudy night · 3:00 a.m.
13° 3:00 a.m.
Mostly cloudy night · 4:00 a.m.
14° Monday 4:00 a.m.
Mostly cloudy night · 5:00 a.m.
14° 5:00 a.m.
Overcast night · 6:00 a.m.
13° 6:00 a.m.
Overcast night · 7:00 a.m.
13° 7:00 a.m.
Mostly cloudy · 8:00 a.m.
13° Monday 8:00 a.m.
Mostly cloudy · 9:00 a.m.
14° 9:00 a.m.
Mostly cloudy · 10:00 a.m.
16° 10:00 a.m.
Mostly cloudy · 11:00 a.m.
17° 11:00 a.m.
Partly cloudy · 12:00 p.m.
19° Monday 12:00 p.m.
Overcast · 1:00 p.m.
20° 1:00 p.m.
Overcast · 2:00 p.m.
21° 2:00 p.m.
Overcast · 3:00 p.m.
21° 3:00 p.m.
Overcast · 4:00 p.m.
21° Monday 4:00 p.m.
Overcast · 5:00 p.m.
21° 5:00 p.m.
Overcast · 6:00 p.m.
20° 6:00 p.m.
Overcast · 7:00 p.m.
19° 7:00 p.m.
Overcast night · 8:00 p.m.
18° Monday 8:00 p.m.
Overcast night · 9:00 p.m.
18° 9:00 p.m.
Overcast night · 10:00 p.m.
17° 10:00 p.m.
Mostly cloudy night · 11:00 p.m.
16° 11:00 p.m.
Mostly cloudy night · 12:00 a.m.
16° Tuesday 12:00 a.m.
Mostly cloudy night · 1:00 a.m.
15° 1:00 a.m.
Mostly clear night · 2:00 a.m.
15° 2:00 a.m.
Mostly clear night · 3:00 a.m.
14° 3:00 a.m.
Mostly clear night · 4:00 a.m.
13° Tuesday 4:00 a.m.
Mostly clear night · 5:00 a.m.
13° 5:00 a.m.
Overcast night · 6:00 a.m.
13° 6:00 a.m.
Overcast night · 7:00 a.m.
14° 7:00 a.m.
Overcast · 8:00 a.m.
14° Tuesday 8:00 a.m.
Sunny · 11:00 a.m.
19° 11:00 a.m.
Partly cloudy · 2:00 p.m.
22° 2:00 p.m.
Sunny · 5:00 p.m.
22° 5:00 p.m.
Mostly cloudy night · 8:00 p.m.
17° Tuesday 8:00 p.m.
Mostly cloudy night · 11:00 p.m.
16° 11:00 p.m.
Mostly cloudy night · 2:00 a.m.
16° 2:00 a.m.
Overcast night · 5:00 a.m.
15° 5:00 a.m.
Overcast · 8:00 a.m.
16° Wednesday 8:00 a.m.
Light rain · 2:00 p.m.
19° 2:00 p.m.
Overcast night · 8:00 p.m.
18° 8:00 p.m.
Mostly cloudy night · 2:00 a.m.
16° 2:00 a.m.
Overcast · 8:00 a.m.
17° Thursday 8:00 a.m.
Partly cloudy · 2:00 p.m.
23° 2:00 p.m.
Clear night · 8:00 p.m.
17° 8:00 p.m.
Overcast night · 2:00 a.m.
15° 2:00 a.m.
Overcast · 8:00 a.m.
15° Friday 8:00 a.m.
Overcast · 2:00 p.m.
24° 2:00 p.m.
Overcast night · 8:00 p.m.
19° 8:00 p.m.
Overcast night · 2:00 a.m.
17° 2:00 a.m.
Light rain · 8:00 a.m.
16° Saturday 8:00 a.m.
Overcast · 2:00 p.m.
16° 2:00 p.m.
Moderate rain · 8:00 p.m.
13° 8:00 p.m.
Light rain · 2:00 a.m.
11° 2:00 a.m.
Moderate rain · 8:00 a.m.
11° Sunday 8:00 a.m.
Overcast · 2:00 p.m.
13° 2:00 p.m.
Clear night · 8:00 p.m.
11° 8:00 p.m.
Clear night · 2:00 a.m.
8° 2:00 a.m.
Mostly sunny · 8:00 a.m.
7° Monday 8:00 a.m.
Partly cloudy · 2:00 p.m.
15° 2:00 p.m.
Mostly clear night · 8:00 p.m.
10° 8:00 p.m.
Clear night · 2:00 a.m.
5° 2:00 a.m.
Sunny · 8:00 a.m.
5° Tuesday 8:00 a.m.
Mostly sunny · 2:00 p.m.
15° 2:00 p.m.
Partly cloudy night · 8:00 p.m.
10° 8:00 p.m.
Mostly cloudy night · 2:00 a.m.
8° 2:00 a.m.
Overcast · 8:00 a.m.
10° Wednesday 8:00 a.m.
Overcast · 2:00 p.m.
17° 2:00 p.m.
Moderate rain · 8:00 p.m.
14° 8:00 p.m.
Moderate rain · 2:00 a.m.
12° 2:00 a.m.
Overcast · 8:00 a.m.
9° Thursday 8:00 a.m.
Light rain · 2:00 p.m.
12° 2:00 p.m.
Mostly clear night · 8:00 p.m.
9° 8:00 p.m.
Light rain · 2:00 a.m.
9° 2:00 a.m.
Partly cloudy · 8:00 a.m.
8° Friday 8:00 a.m.

AIR QUALITY FORECAST

Air Quality Forecast for Cornell

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 4:00 p.m.
PM2.5 PM2.5 Good 2,6µg/m³

Air quality is favorable for outdoor activities.

PM10 PM10 Good 3,1µg/m³

Air quality is favorable for outdoor activities.

O₃ O₃ Fair 98,9µg/m³

Air quality is acceptable for most people.

NO₂ NO₂ Good 1,3µg/m³

Air quality is favorable for outdoor activities.

Air quality is acceptable for most people.

HEALTH & EXPOSURE

UV, Sun & Health Outlook in Cornell

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 4,0Moderate 🙂Fair
Tomorrow UV 3,4Moderate 🙂Fair
Tuesday UV 0,1Low 😐Moderate
Hourly UV index today
4:00 p.m.UV 3,1 5:00 p.m.UV 2,3 6:00 p.m.UV 1,3 7:00 p.m.UV 0,4
Hourly UV index tomorrow
7:00 a.m.UV 0,0 8:00 a.m.UV 0,1 9:00 a.m.UV 0,8 10:00 a.m.UV 1,8 11:00 a.m.UV 2,7 12:00 p.m.UV 3,5 1:00 p.m.UV 3,9 2:00 p.m.UV 4,0 3:00 p.m.UV 3,7 4:00 p.m.UV 3,1 5:00 p.m.UV 2,2 6:00 p.m.UV 1,2 7:00 p.m.UV 0,4
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Cornell

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 4:00 p.m. 5:00 p.m. 6:00 p.m. 7:00 p.m. Today 8:00 p.m. 9:00 p.m. 10:00 p.m. 11:00 p.m. Tomorrow 12:00 a.m. 1:00 a.m. 2:00 a.m. 3:00 a.m. Tomorrow 4:00 a.m. 5:00 a.m. 6:00 a.m. 7:00 a.m. Tomorrow 8:00 a.m. 9:00 a.m. 10:00 a.m. 11:00 a.m. Tomorrow 12:00 p.m. 1:00 p.m. 2:00 p.m. 3:00 p.m. Tomorrow 4:00 p.m. 5:00 p.m. 6:00 p.m. 7:00 p.m. Tomorrow 8:00 p.m. 9:00 p.m. 10:00 p.m. 11:00 p.m. Monday 12:00 a.m. 1:00 a.m. 2:00 a.m. 3:00 a.m. Monday 4:00 a.m. 5:00 a.m. 6:00 a.m. 7:00 a.m. Monday 8:00 a.m. 9:00 a.m. 10:00 a.m. 11:00 a.m. Monday 12:00 p.m. 1:00 p.m. 2:00 p.m. 3:00 p.m. Monday 4:00 p.m. 5:00 p.m. 6:00 p.m. 7:00 p.m. Monday 8:00 p.m. 9:00 p.m. 10:00 p.m. 11:00 p.m. Tuesday 12:00 a.m. 1:00 a.m. 2:00 a.m. 3:00 a.m. Tuesday 4:00 a.m. 5:00 a.m. 6:00 a.m. 7:00 a.m. Tuesday 8:00 a.m. 11:00 a.m. 2:00 p.m. 5:00 p.m. Tuesday 8:00 p.m. 11:00 p.m. 2:00 a.m. 5:00 a.m. Wednesday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Thursday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Friday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Saturday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Sunday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Monday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Tuesday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Wednesday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Thursday 8:00 a.m. 2:00 p.m. 8:00 p.m. 2:00 a.m. Friday 8:00 a.m.
Sustained wind Max gusts

The technical data used to calculate this forecast for Cornell were updated today at 3:52 p.m.. The displayed forecasts cover the period through 28/09/2026 at 1:00 p.m.. Weather and air-quality data provided by WEATHER-INFO.COM. UV-index data derived from ECMWF UVB by WEATHER PORTAL. Weather information is generated automatically and periodically reviewed by our technical team.

NIGHT SKY · CORNELL, ONTARIO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 6:00 AM–7:00 AM.

93/100Best-hour score
BEST TIME TONIGHT 6:00 AM–7:00 AM Astronomical darkness: 8:47 PM–5:41 AM
☁ Cloud cover 0% Real hourly forecast for the best viewing hour.
☾ Moonlight 99% Full Moon · Moon about 23° above the horizon at the best viewing hour.
☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 56° high at the best hour.
✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min40%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
ACTIVE NOW
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING
NOV 6–NOV 30
LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.