St. Catharines
Tomorrow
Tomorrow weather in St. Catharines
Monday, 15th September 2025
23°
Partly cloudy
The weather tomorrow in St. Catharines will be a bit hotter than today, with max temperatures of 23°.
The wind tomorrow will get stronger and reach 25 km/h.
The humidity in St. Catharines will continue to be high and expected to go over 87%.
23° / 13°
Temp
0%
Rain
25 km/h
Wind
87%
Humidity
St. Catharines Weather Pages
St. Catharines hourly forecast for tomorrow
Scroll right to see more weather forecasts for St. Catharines tomorrow
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 06:57 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 19:26 | 20:00 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | | |  |  | | | | | | | | | |  | | |  |  | | | | Next |
| temperatures | 14.8° | 13.9° | 13.3° | 13° | 13.1° | 13.1° | 13.1° | Sunrise | 13.1° | 13.3° | 13.8° | 14.8° | 16.6° | 18.7° | 20.3° | 21.4° | 22.1° | 22.6° | 21.4° | 20° | 18.5° | Sunset | 17.4° | 16.7° | 16.9° | 16.1° | |
| wind speed | 6 km/h | 9 km/h | 12 km/h | 13 km/h | 11 km/h | 11 km/h | 10 km/h | 10 km/h | 9 km/h | 12 km/h | 14 km/h | 19 km/h | 23 km/h | 25 km/h | 26 km/h | 25 km/h | 25 km/h | 25 km/h | 23 km/h | 21 km/h | 16 km/h | 14 km/h | 13 km/h | 13 km/h | |||
| wind degree | 97° | 79° | 85° | 112° | 111° | 101° | 95° | 94° | 87° | 75° | 62° | 52° | 52° | 50° | 48° | 48° | 47° | 49° | 52° | 57° | 70° | 85° | 95° | 98° | |||
| wind direction | E | E | E | ESE | ESE | ESE | E | E | E | ENE | ENE | NE | NE | NE | NE | NE | NE | NE | NE | ENE | ENE | E | E | E | |||
| Precipitation | 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 | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 98% | 98% | 97% | 97% | 97% | 97% | 97% | 97% | 97% | 96% | 95% | 94% | 86% | 75% | 71% | 69% | 68% | 68% | 77% | 82% | 87% | 88% | 89% | 66% | |||
| dew point | 14.7° | 13.6° | 12.7° | 12.2° | 12.4° | 12.7° | 12.8° | 12.7° | 12.6° | 12.9° | 13.6° | 14.9° | 15.9° | 16.3° | 16.5° | 16.7° | 16.7° | 16.8° | 15.9° | 15.4° | 15° | 14.4° | 14.1° | 10.8° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 95% | 60% | 38% | 34% | 23% | 17% | 12% | 12% | 12% | 12% | 8% | 6% | 6% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.9 | 2.1 | 3.6 | 5 | 5.8 | 5.6 | 4.5 | 2.8 | 1.4 | 0.5 | 0 | 0 | 0 | 0 | 0 |
Weather in St. Catharines tomorrow
The temperature tomorrow in St. Catharines is expected to be typical for this time of year, with a forecast of 23 °C, closely aligning with the historical average for 15th of September.
temperatures
23 °C
rain
0 mm
wind
25 km/h
UV
Low
St. Catharines daylight overview ☀️
Tomorrow in St. Catharines, The sun rises at 06:57 and sets at 19:26, giving a total daylight duration of 12 hours and 29 minutes.
Quick links
More St. Catharines weather pages
What to wear tomorrow in St. Catharines? clothing recommendations
Stay comfortably stylish - your tailored guide for tomorrow's St. Catharines forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
The weather tomorrow in St. Catharines - FAQ
What is the maximum temperature for tomorrow in St. Catharines?
The maximum temperature for tomorrow in St. Catharines is expected to be 23° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain tomorrow in St. Catharines? 🌧️
No, there is no significant chance of rain in St. Catharines tomorrow. It should be a dry day.
What will be the wind speed tomorrow in St. Catharines? 🌀
The wind in St. Catharines is expected to blow at 25 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in St. Catharines tomorrow?
Given the forecast of 23 °C with a 0% chance of rain, we advise checking our "What to wear tomorrow" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in St. Catharines tomorrow.
What is the sunrise and sunset time for St. Catharines tomorrow?
The sun is expected to rise at 06:57 and set at 19:26 in St. Catharines.
How accurate is the weather forecast St. Catharines tomorrow? ✅
St. Catharines weather forecast for tomorrow 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 St. Catharines?Get accurate weather forecasts for St. Catharines, located at latitude 43.171 and longitude -79.243. Stay updated with localized weather information tailored for St. Catharines.
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