21°
Light rain, feels like 20°.
Thornhill, Ontario, Canada · Wednesday, 4 November 2026
Low/High
12°/21°
Humidity
77%
Chance of rain
99%
Wind
14.4 km/h
UV
2.7
Temperature Tomorrow
Thornhill Weather Tomorrow by Time of Day
| Time of day | Weather | Weather | Temperature | Chance of rain |
|---|---|---|---|---|
| Morning |  | Overcast | 12–20°C | 0% |
| Afternoon | | Overcast | 19–21°C | 13% |
| Evening | | Light rain | 16–18°C | 99% |
| Night |  | Light rain | 16–17°C | 93% |
Thornhill Weather Tomorrow — Wednesday, 4 November 2026
| Date | Low/High | Weather | Chance of rain | Wind | Summary |
|---|---|---|---|---|---|
| 12 °/21 ° |
Light rain
|
99% | 14 km/h | Wed 4 Nov WeatherLow/High12°/21° Humidity77% Pressure993 hPa Sunrise/Sunset |
Thornhill Hourly Weather Tomorrow
| Time | Weather | Weather | Temperature | Feels like | Rain | Humidity | Wind |
|---|---|---|---|---|---|---|---|
 | Partly cloudy | 14° | 14° | 0% | 90% | 3 km/h | |
 | Overcast | 13° | 13° | 0% | 88% | 4 km/h | |
| Overcast | 13° | 13° | 0% | 88% | 3 km/h | |
| Overcast | 13° | 13° | 0% | 94% | 5 km/h | |
| Overcast | 12° | 12° | 0% | 93% | 5 km/h | |
| Mostly clear | 12° | 11° | 0% | 91% | 5 km/h | |
 | Partly cloudy | 12° | 11° | 0% | 91% | 6 km/h | |
| Overcast | 12° | 11° | 0% | 92% | 6 km/h | |
| Overcast | 13° | 13° | 0% | 93% | 3 km/h | |
 | Clear sky | 15° | 15° | 0% | 80% | 6 km/h | |
| Overcast | 19° | 18° | 0% | 65% | 9 km/h | |
| Overcast | 20° | 18° | 0% | 63% | 12 km/h | |
| Partly cloudy | 20° | 18° | 0% | 63% | 14 km/h | |
| Overcast | 19° | 18° | 0% | 66% | 14 km/h | |
| Overcast | 19° | 18° | 1% | 65% | 13 km/h | |
| Overcast | 19° | 18° | 3% | 64% | 14 km/h | |
| Overcast | 21° | 20° | 13% | 57% | 12 km/h | |
| Overcast | 18° | 17° | 38% | 66% | 10 km/h | |
| Light rain | 17° | 15° | 71% | 70% | 12 km/h | |
| Light rain | 16° | 14° | 94% | 74% | 12 km/h | |
| Light rain | 17° | 15° | 99% | 70% | 11 km/h | |
| Light rain | 17° | 16° | 93% | 70% | 4 km/h | |
| Light rain | 16° | 16° | 87% | 77% | 6 km/h | |
| Light rain | 16° | 17° | 82% | 86% | 2 km/h | |
Summary
Tomorrow, Wednesday 4 November 2026, the weather in Thornhill is forecast to be light rain, with temperatures of 12–21°C and a chance of rain of up to 99%, highest around 20:00 local time. Take an umbrella or a rain jacket.
Updated at 23:47 local time, 3 November 2026
Thornhill Hourly Temperature and Chance of Rain
Thornhill Air Quality
Good · AQI 41Air quality is good and poses little or no risk for outdoor activity.
PM2.5 (µg/m³)11
PM10 (µg/m³)12
O₃ (µg/m³)48
NO₂ (µg/m³)26
SO₂ (µg/m³)7.8
CO (µg/m³)268
Windy Map
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