Lakes / North America / United States
Lake Ontario today
Lake Ontario right now: the water is 21 °C71 °F, there's a gentle breeze from the southeast at 19 km/h12 mph and it's 18 °C64 °F and clear sky.
Updated 10:17 local time, Saturday 12 September
Photo: NASA, Public domain, via Wikimedia Commons
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Water temperature
21 °C71 °F
Measured, less than an hour ago.
Wind now
19 km/h12 mph
From the southeast, gusts 23 km/h15 mph. 10 knots, a gentle breeze.
Air
18 °C64 °F
Clear sky.
Water level
75.20 m246.71 ft
Above sea level (IGLD 1985). NOAA, less than an hour ago.
Good for today?
Rules of thumb from the current wind and water temperature. Conditions differ across the lake, so check on the spot.
- SwimmingPleasant for a swim
- Kayak and paddleboardBreezy – for experienced paddlers
- SailingGood sailing breeze
- Windsurf and kiteMarginal
Wind, next 24 hours
KilometresMiles per hour, gusts below. Arrows point the way the wind blows.
10:002113gusts 2314 SE
13:00127gusts 1610 SE
16:001610gusts 2013 ENE
19:00159gusts 159 NE
22:002717gusts 3522 SSW
01:002415gusts 3421 SSW
04:002012gusts 2817 SW
07:002013gusts 2717 WSW
Four-day forecast
| Day | Weather | High / low | Wind | Gusts | Rain |
|---|---|---|---|---|---|
| Today12 Sep Rain | Rain | 20 °C68 °F / 17 °C63 °F | 3119 SE | 4226 | 14% |
| Tomorrow13 Sep Overcast | Overcast | 20 °C68 °F / 18 °C64 °F | 3723 W | 5534 | 29% |
| Monday14 Sep Overcast | Overcast | 20 °C67 °F / 11 °C52 °F | 3320 NW | 4830 | 29% |
| Tuesday15 Sep Overcast | Overcast | 21 °C70 °F / 14 °C57 °F | 2918 S | 3622 | 25% |
Wind in km/hmph. Rain shows the highest hourly chance of rain that day.