Weather in London, Ontario, Canada today, September 21
Weather in London now: +12°, partly cloudy, wind 5.5 m/s, humidity 74%. Accurate forecast for today, tomorrow, 3 days and 2 weeks — temperature, precipitation, pressure and wind.
Weather in London now
Hourly forecast for today in London
Weather forecast in London today 📅
Weekend weather in London
Weather for the weather-sensitive
📒 Weather diary in London
Ready-made observation table for September: past days are already filled in with weather-station data — for school and beyond. Open the diary →
What to do in London in weather like this 🎯
✉️ Weather forecast by email
Get the forecast for this city by email — every day at 17:00 Moscow time.
The Moon today 🌙
Monthly climate 🗓️
London, Ontario, Canada. Population 422 324.
Weather and climate in London 🌍
Climate in London: the warmest month is July (up to +27° by day), the coldest is February (down to -8° at night). Annual precipitation is about 1018 mm.
The best time to visit is May–October, when the weather is most comfortable for walks and sightseeing.
Precipitation map 🌧️
Cities near London 📍
FAQ about weather in London ❓
What's the weather in London right now?
Now +12°, partly cloudy, wind 5.5 m/s, N-E, humidity 74%. Feels like +8°.
What's the weather in London tomorrow?
Tomorrow: +16° by day, +8° at night, overcast.
Sunrise and sunset in London?
Sunrise 06:10, sunset 18:26, day length 12h 16m.
What's the pressure and humidity in London?
Pressure 767 mmHg, humidity 74%, wind 6 m/s. Matters for weather-sensitive people.
Do I need an umbrella in London today?
No, precipitation is unlikely — you can go out without an umbrella.
Do I need sunscreen in London?
Yes, the UV index is 6 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
Is it a good day for a picnic in London?
Yes, it’s warm and dry (up to +17°) — a good time for a picnic, a walk or a barbecue.
How long is it safe to stay in the sun in London?
At UV 6, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
Is it a good day to wash the car in London?
No precipitation expected — a good time to wash the car; rain won’t spoil it in the coming hours.
Is it good weather for a walk or a bike ride in London?
Yes, dry and comfortable (up to +17°) — great for a walk, a bike ride or a run.
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Weather in London — in detail
Weather in London from “Pogoda 1” — an accurate, free forecast: current temperature, feels-like, wind, atmospheric pressure, humidity and precipitation. Available for today, tomorrow, 3, 5 and 10 days, a week, 2 weeks and a month, plus hourly weather, monthly climate, water temperature, air quality and an observation archive since 2017.
To quickly check the weather in London anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.