Alliston
August
Weather in Alliston for August 2026
Your guide to Alliston weather in August - trends and predictions
In general, the average temperature in Alliston at the beginning of August is 26.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.3 °C by the end of August.
Alliston experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 104 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
22
Rainy days
0
Snow days
24°/14°
Temperatures
18 km/h
Avg max wind
72 %
Avg humidity
Alliston Weather August
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Temperatures trend during August in Alliston
See the weather trend as well as the moving average line
August weather in Alliston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Cloudy | 26° /15° | 0.2 mm | 6 | |
| 2 Aug. |  Partly cloudy | 28° /14° | 1.6 mm | 7 | |
| 3 Aug. |  Moderate or heavy rain shower | 28° /16° | 2.9 mm | 7 | |
| 4 Aug. |  Sunny | 26° /15° | 1.6 mm | 6 | |
| 5 Aug. | Partly cloudy | 25° /15° | 1.3 mm | 6 | |
| 6 Aug. |  Overcast | 25° /15° | 1.1 mm | 6 | |
| 7 Aug. | Moderate or heavy rain shower | 25° /15° | 10 mm | 6 | |
| 8 Aug. | Moderate or heavy rain shower | 25° /15° | 1.1 mm | 5 | |
| 9 Aug. | Sunny | 27° /15° | 1 mm | 6 | |
| 10 Aug. | Moderate or heavy rain shower | 24° /15° | 6 mm | 5 | |
| 11 Aug. | Cloudy | 25° /14° | 2.6 mm | 6 | |
| 12 Aug. | Moderate or heavy rain shower | 26° /15° | 8 mm | 6 | |
| 13 Aug. |  Patchy rain possible | 24° /15° | 4.8 mm | 5 | |
| 14 Aug. | Patchy rain possible | 26° /15° | 0.2 mm | 6 | |
| 15 Aug. | Moderate rain at times | 26° /15° | 1.4 mm | 6 | |
| 16 Aug. | Partly cloudy | 28° /16° | 0.9 mm | 7 | |
| 17 Aug. | Patchy rain possible | 25° /15° | 16.4 mm | 6 | |
| 18 Aug. | Moderate or heavy rain shower | 21° /13° | 10.6 mm | 5 | |
| 19 Aug. | Partly cloudy | 22° /12° | 0.2 mm | 5 | |
| 20 Aug. | Patchy rain possible | 22° /12° | 2.1 mm | 5 | |
| 21 Aug. | Overcast | 22° /13° | 0 mm | 5 | |
| 22 Aug. | Overcast | 24° /13° | 0 mm | 5 | |
| 23 Aug. | Moderate or heavy rain shower | 24° /13° | 3.5 mm | 6 | |
| 24 Aug. | Patchy rain possible | 25° /15° | 1.6 mm | 5 | |
| 25 Aug. |  Fog | 22° /14° | 0 mm | 5 | |
| 26 Aug. | Fog | 22° /12° | 0 mm | 5 | |
| 27 Aug. | Cloudy | 25° /12° | 0 mm | 6 | |
| 28 Aug. | Cloudy | 20° /12° | 15.9 mm | 5 | |
| 29 Aug. | Partly cloudy | 22° /10° | 0.8 mm | 6 | |
| 30 Aug. |  Light rain | 22° /11° | 4.3 mm | 6 | |
| 31 Aug. | Sunny | 23° /11° | 3.9 mm | 6 | |
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Important Notice
Our weather forecast for Alliston in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Alliston forecast closer to your planned date for the most up-to-date weather information.
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Alliston in August - FAQ
What are the expected maximum and minimum temperatures in Alliston during August?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Alliston during August?
Significant rainfall exceeding 104 mm is expected in Alliston during August, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Alliston during August?
The average wind speed in Alliston during August is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Alliston
Explore the daily rainfall trends and prepare for Allistons August weather 💧
Typically, Alliston has 22 rainy days in August with a total of 104 mm of rainfall.
UV exposure in Alliston during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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