Alliston
Today
Today weather in Alliston
Sunday, 21st December 2025
-4°
Light freezing rain
Official weather alert: Snow Squall Warning. Alliston can expect a bitterly cold day Today, with temperatures not exceeding the freezing point. Strong winds are anticipated in Alliston Today, nearing 35 km/h. Mixed precipitation is expected Today. Rain is highly likely at 61%, but with light accumulations around 0.28 mm. In addition, A few snowflakes might be spotted at a 12% chance. Sleet or freezing rain is also a possibility.
-4° / -9°
Temp
61%
Rain
35 km/h
Wind
79%
Humidity
Alliston Weather Pages
Alliston hourly forecast for today
Scroll right to see more weather forecasts for Alliston today
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 07:52 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 16:43 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  |  |  |  | | | | |  | |  | |  |  | | | | |  | | | |  | | | | Next |
| temperatures | -2° | -3.4° | -4.5° | -5.8° | -7.1° | -7.9° | -8.3° | -8.4° | Sunrise | -6.7° | -5.8° | -4.9° | -4.6° | -4.2° | -4.1° | -4.5° | -4.9° | -5.2° | Sunset | -5.3° | -5.4° | -5.5° | -5.6° | -5.6° | -6.4° | -6° | |
| feels like | -8.1° | -10.6° | -12.5° | -14.7° | -16.1° | -16.8° | -17.1° | -17.2° | -15.3° | -14.3° | -13.3° | -12.8° | -12.1° | -11.9° | -12.4° | -13.1° | -13.3° | -13.3° | -12.9° | -12.7° | -12.3° | -12° | -11.8° | -11.4° | |||
| wind speed | 33 km/h | 35 km/h | 34 km/h | 35 km/h | 34 km/h | 31 km/h | 30 km/h | 30 km/h | 31 km/h | 32 km/h | 32 km/h | 31 km/h | 29 km/h | 30 km/h | 31 km/h | 32 km/h | 30 km/h | 27 km/h | 23 km/h | 21 km/h | 19 km/h | 18 km/h | 14 km/h | 9 km/h | |||
| wind degree | 251° | 263° | 270° | 286° | 283° | 276° | 272° | 270° | 269° | 270° | 274° | 279° | 289° | 303° | 310° | 306° | 307° | 307° | 303° | 303° | 303° | 303° | 300° | 278° | |||
| wind direction | WSW | W | W | WNW | WNW | W | W | W | W | W | W | W | WNW | WNW | NW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | W | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0.1 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0.1 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 0% | 0% | 0% | 100% | 0% | 0% | 0% | 0% | 100% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| chance for snow | 0% | 0% | 0% | 76% | 67% | 79% | 0% | 0% | 63% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 71% | 70% | 65% | 81% | 73% | 81% | 76% | 75% | 77% | 79% | 78% | 78% | 84% | 86% | 87% | 82% | 77% | 78% | 81% | 82% | 83% | 82% | 82% | 84% | |||
| dew point | -7° | -6.7° | -10.2° | -8.3° | -11.1° | -11.1° | -12.1° | -12.3° | -11.8° | -8.1° | -8° | -7.3° | -6.6° | -5.9° | -5.9° | -7.4° | -8.6° | -8.8° | -8.2° | -7.9° | -8.2° | -8.2° | -8.2° | -9.6° | |||
| visibility | 2 km | 2 km | 0 km | 2 km | 2 km | 10 km | 10 km | 9 km | 2 km | 0 km | 0 km | 0 km | 0 km | 0 km | 2 km | 2 km | 2 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 19% | 100% | 87% | 100% | 100% | 74% | 2% | 4% | 85% | 51% | 55% | 86% | 100% | 100% | 100% | 100% | 98% | 79% | 80% | 71% | 57% | 50% | 46% | 37% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.5 | 0.8 | 0.9 | 0.9 | 0.8 | 0.4 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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View of Alliston today
Explore Alliston live webcam feed to see how the weather is shaping up today in Alliston. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.
Stay informed and make the most of your day with our live weather updates from Alliston today.
Weather in Alliston today
The temperature today in Alliston is expected to be typical for this time of year, with a forecast of -4 °C, closely aligning with the historical average for 21st of December.
temperatures
-4 °C
rain
0.3 mm
wind
35 km/h
snow
0 cm
Alliston daylight overview ☀️
Today in Alliston, The sun rises at 07:52 and sets at 16:43, giving a total daylight duration of 8 hours and 51 minutes.
Quick links
More Alliston weather pages
What to wear today in Alliston? clothing recommendations
Stay comfortably stylish - your tailored guide for today's Alliston forecast.
Thermal underwear
Sweater/Fleece
Insulated jacket
Warm pants
Warm boots
Beanie
Gloves/Mitten
Scarf
Thick socks
Umbrella
The weather today in Alliston - FAQ
What is the maximum temperature for today in Alliston?
The maximum temperature for today in Alliston is expected to be -4° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it snow today in Alliston? ❄️
Yes, there is a 12% chance of snow in Alliston today, with an expected snowfall of 0 cm cm. Prepare for snowy conditions and consider winter gear if you plan to be outdoors.
Will it rain today in Alliston? 🌧️
Yes, there is a 61% chance of rain in Alliston today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Alliston? 🌀
The wind in Alliston is expected to blow at 35 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Alliston today?
Given the forecast of -4 °C with a 61% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Alliston today.
What is the sunrise and sunset time for Alliston today?
The sun is expected to rise at 07:52 and set at 16:43 in Alliston.
How accurate is the weather forecast Alliston today? ✅
Alliston weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is Alliston?Get accurate weather forecasts for Alliston, located at latitude 44.15 and longitude -79.866. Stay updated with localized weather information tailored for Alliston.
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