St. Catharines Extended Forecast with high and low temperatures
2 Week Extended Forecast in St. Catharines, Ontario, Canada
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Sat Dec 6 |  | 36 / 29 °F | Light snow. Overcast. | 24 °F | 16 mph | ↑ | 75% | 48% | 0.33" | 0 (Low) | 7:34 am | 4:41 pm |
| Sun Dec 7 |  | 34 / 26 °F | Snow. Overcast. | 25 °F | 10 mph | ↑ | 82% | 55% | 2.15" | 0 (Low) | 7:35 am | 4:41 pm |
| Mon Dec 8 |  | 26 / 17 °F | Overcast. | 16 °F | 6 mph | ↑ | 58% | 21% | 0.05" | 0 (Low) | 7:36 am | 4:41 pm |
| Tue Dec 9 | | 38 / 18 °F | Light snow late. Overcast. | 20 °F | 24 mph | ↑ | 83% | 55% | 1.00" | 0 (Low) | 7:37 am | 4:41 pm |
| Wed Dec 10 |  | 40 / 35 °F | Rain. Overcast. | 28 °F | 25 mph | ↑ | 86% | 72% | 0.41" | 0 (Low) | 7:38 am | 4:41 pm |
| Thu Dec 11 |  | 38 / 34 °F | Rain changing to snow. Overcast. | 27 °F | 10 mph | ↑ | 84% | 50% | 1.87" | 0 (Low) | 7:38 am | 4:41 pm |
| Fri Dec 12 | | 35 / 24 °F | Light snow. Overcast. | 20 °F | 13 mph | ↑ | 71% | 50% | 1.23" | 0 (Low) | 7:39 am | 4:41 pm |
| Sat Dec 13 | | 27 / 21 °F | Light snow late. Overcast. | 16 °F | 10 mph | ↑ | 73% | 45% | 0.69" | 0 (Low) | 7:40 am | 4:41 pm |
| Sun Dec 14 | | 24 / 20 °F | Light snow late. Cloudy. | 11 °F | 16 mph | ↑ | 82% | 53% | 1.02" | 0 (Low) | 7:41 am | 4:42 pm |
| Mon Dec 15 | | 28 / 24 °F | Overcast. | 15 °F | 19 mph | ↑ | 79% | 46% | 0.06" | 0 (Low) | 7:42 am | 4:42 pm |
| Tue Dec 16 | | 28 / 24 °F | Light snow. Mostly cloudy. | 13 °F | 26 mph | ↑ | 76% | 53% | 0.85" | 0 (Low) | 7:42 am | 4:42 pm |
| Wed Dec 17 | | 28 / 20 °F | Light snow. Cloudy. | 14 °F | 14 mph | ↑ | 77% | 51% | 1.11" | 0 (Low) | 7:43 am | 4:43 pm |
| Thu Dec 18 | | 29 / 21 °F | Light snow. Mostly cloudy. | 16 °F | 17 mph | ↑ | 77% | 54% | 1.67" | 0 (Low) | 7:44 am | 4:43 pm |
| Fri Dec 19 | | 30 / 22 °F | Moderate snow. Overcast. | 17 °F | 17 mph | ↑ | 94% | 68% | 3.69" | 0 (Low) | 7:44 am | 4:43 pm |
| Sat Dec 20 | | 31 / 22 °F | Overcast. | 13 °F | 20 mph | ↑ | 81% | 49% | 0.22" | 0 (Low) | 7:45 am | 4:44 pm |
| * Updated Saturday, December 6, 2025 4:24:07 am St. Catharines time - Weather by CustomWeather, © 2025 | ||||||||||||