30-day outlook · St. Catharines
14-day forecast →Sep 1723°13°60%
1822°13°10%
1919°16°70%
2019°12°70%
2116°13°30%
2218°14°30%
2318°16°40%
2421°15°75%
2515°12°59%
2617°11°17%
2720°13°5%
2820°16°12%
2922°16°14%
3019°13°65%
Oct 118°10°normal
218°9°normal
318°9°normal
418°9°normal
517°9°normal
617°9°normal
717°8°normal
817°8°normal
917°8°normal
1016°8°normal
1116°8°normal
1216°7°normal
1316°7°normal
1415°7°normal
1515°7°normal
1615°7°normal
TodayForecast, days 1–14Climate normal for the date
30 days at a glance
Today →| Day | Weather | High | Low | Precip | Source |
|---|---|---|---|---|---|
| Today Sep 17 | Showers | 23° | 13° | 60% · 2 mm | Forecast |
| Fri Sep 18 | Mostly sunny | 22° | 13° | 10% · 0 mm | Forecast |
| Sat Sep 19 | Showers | 19° | 16° | 70% · 4 mm | Forecast |
| Sun Sep 20 | Showers | 19° | 12° | 70% · 5 mm | Forecast |
| Mon Sep 21 | Mostly cloudy | 16° | 13° | 30% · 4 mm | Forecast |
| Tue Sep 22 | Showers | 18° | 14° | 30% · 25 mm | Forecast |
| Wed Sep 23 | Showers | 18° | 16° | 40% · 0.6 mm | Forecast |
| Thu Sep 24 | Mostly cloudy | 21° | 15° | 75% · 5 mm | Outlook |
| Fri Sep 25 | Showers | 15° | 12° | 59% · 2 mm | Outlook |
| Sat Sep 26 | Sunny | 17° | 11° | 17% · 0.1 mm | Outlook |
| Sun Sep 27 | Sunny | 20° | 13° | 5% · 0 mm | Outlook |
| Mon Sep 28 | Mostly cloudy | 20° | 16° | 12% · 0 mm | Outlook |
| Tue Sep 29 | Mostly cloudy | 22° | 16° | 14% · 0 mm | Outlook |
| Wed Sep 30 | Sunny | 19° | 13° | 65% · 4 mm | Outlook |
| Thu Oct 1 | Typical for the date | ≈18° | ≈10° | ≈3 mm | Normal |
| Fri Oct 2 | Typical for the date | ≈18° | ≈9° | ≈3 mm | Normal |
| Sat Oct 3 | Typical for the date | ≈18° | ≈9° | ≈3 mm | Normal |
| Sun Oct 4 | Typical for the date | ≈18° | ≈9° | ≈3 mm | Normal |
| Mon Oct 5 | Typical for the date | ≈17° | ≈9° | ≈3 mm | Normal |
| Tue Oct 6 | Typical for the date | ≈17° | ≈9° | ≈3 mm | Normal |
| Wed Oct 7 | Typical for the date | ≈17° | ≈8° | ≈3 mm | Normal |
| Thu Oct 8 | Typical for the date | ≈17° | ≈8° | ≈3 mm | Normal |
| Fri Oct 9 | Typical for the date | ≈17° | ≈8° | ≈3 mm | Normal |
| Sat Oct 10 | Typical for the date | ≈16° | ≈8° | ≈3 mm | Normal |
| Sun Oct 11 | Typical for the date | ≈16° | ≈8° | ≈3 mm | Normal |
| Mon Oct 12 | Typical for the date | ≈16° | ≈7° | ≈3 mm | Normal |
| Tue Oct 13 | Typical for the date | ≈16° | ≈7° | ≈3 mm | Normal |
| Wed Oct 14 | Typical for the date | ≈15° | ≈7° | ≈3 mm | Normal |
| Thu Oct 15 | Typical for the date | ≈15° | ≈7° | ≈2 mm | Normal |
| Fri Oct 16 | Typical for the date | ≈15° | ≈7° | ≈2 mm | Normal |
Days 1–7: Environment and Climate Change Canada (St. Catharines - Grimsby - Northern Niagara Region) · days 8–14: WeatherAPI.com · days 15–30: Climate normals 1981–2010, Vineland Rittenhouse station · Environment and Climate Change Canada · 43.1713°N, 79.2427°W