Lakes / North America / United States
Lake Ontario today
Lake Ontario right now: the water is 21 °C71 °F, there's a moderate breeze from the southeast at 25 km/h15 mph and it's 18 °C64 °F and clear sky.
Updated 09:17 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
25 km/h15 mph
From the southeast, gusts 27 km/h17 mph. 13 knots, a moderate breeze.
Air
18 °C64 °F
Clear sky.
Water level
75.19 m246.70 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 paddleboardToo windy for most paddlers
- SailingGood sailing breeze
- Windsurf and kiteEnough wind
Wind, next 24 hours
KilometresMiles per hour, gusts below. Arrows point the way the wind blows.
09:002616gusts 2817 SE
12:00138gusts 1610 SSE
15:00149gusts 1711 ENE
18:001912gusts 3119 E
21:002818gusts 4226 S
00:002918gusts 4025 SSW
03:002214gusts 3119 SW
06:002717gusts 3723 WSW
Four-day forecast
| Day | Weather | High / low | Wind | Gusts | Rain |
|---|---|---|---|---|---|
| Today12 Sep Rain | Rain | 20 °C68 °F / 17 °C63 °F | 3119 SE | 4226 | 12% |
| Tomorrow13 Sep Drizzle | Drizzle | 20 °C68 °F / 17 °C63 °F | 3723 WSW | 5434 | 29% |
| Monday14 Sep Overcast | Overcast | 20 °C67 °F / 9 °C48 °F | 2113 NW | 3421 | 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.