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 | ||
| Fri Dec 5 |  | 34 / 17 °F | Overcast. | 24 °F | 12 mph | ↑ | 62% | 1% | 0.00" | 0 (Low) | 7:33 am | 4:41 pm |
| Sat Dec 6 |  | 37 / 29 °F | Rain changing to snow. Overcast. | 26 °F | 15 mph | ↑ | 80% | 44% | 0.44" | 0 (Low) | 7:34 am | 4:41 pm |
| Sun Dec 7 |  | 32 / 24 °F | Snow late. Overcast. | 21 °F | 12 mph | ↑ | 70% | 59% | 2.24" | 0 (Low) | 7:35 am | 4:41 pm |
| Mon Dec 8 |  | 25 / 13 °F | Light snow early. Broken clouds. | 14 °F | 7 mph | ↑ | 71% | 59% | 1.77" | 0 (Low) | 7:36 am | 4:41 pm |
| Tue Dec 9 | | 37 / 18 °F | Overcast. | 20 °F | 25 mph | ↑ | 71% | 4% | 0.00" | 0 (Low) | 7:37 am | 4:41 pm |
| Wed Dec 10 |  | 45 / 36 °F | Rain late. Overcast. | 29 °F | 26 mph | ↑ | 84% | 64% | 0.33" | 0 (Low) | 7:38 am | 4:41 pm |
| Thu Dec 11 | | 40 / 25 °F | Rain changing to snow. Overcast. | 19 °F | 23 mph | ↑ | 76% | 43% | 0.81" | 0 (Low) | 7:38 am | 4:41 pm |
| Fri Dec 12 | | 35 / 25 °F | Light snow. Cloudy. | 21 °F | 18 mph | ↑ | 66% | 52% | 0.33" | 0 (Low) | 7:39 am | 4:41 pm |
| Sat Dec 13 | | 31 / 26 °F | Light snow late. Cloudy. | 15 °F | 22 mph | ↑ | 64% | 52% | 0.51" | 0 (Low) | 7:40 am | 4:41 pm |
| Sun Dec 14 | | 32 / 26 °F | Snow. Overcast. | 20 °F | 19 mph | ↑ | 97% | 66% | 3.58" | 0 (Low) | 7:41 am | 4:42 pm |
| Mon Dec 15 | | 32 / 26 °F | Light snow. Cloudy. | 26 °F | 7 mph | ↑ | 70% | 51% | 0.51" | 0 (Low) | 7:42 am | 4:42 pm |
| Tue Dec 16 | | 27 / 19 °F | Light snow. Overcast. | 12 °F | 13 mph | ↑ | 78% | 59% | 1.77" | 0 (Low) | 7:42 am | 4:42 pm |
| Wed Dec 17 | | 25 / 17 °F | Light snow early. Cloudy. | 8 °F | 10 mph | ↑ | 75% | 41% | 0.25" | 0 (Low) | 7:43 am | 4:43 pm |
| Thu Dec 18 |  | 23 / 17 °F | Broken clouds. | 15 °F | 7 mph | ↑ | 80% | 6% | 0.00" | 0 (Low) | 7:44 am | 4:43 pm |
| Fri Dec 19 | | 31 / 23 °F | Light snow. Overcast. | 10 °F | 17 mph | ↑ | 71% | 51% | 0.68" | 0 (Low) | 7:44 am | 4:43 pm |
| * Updated Thursday, December 4, 2025 10:24:08 pm St. Catharines time - Weather by CustomWeather, © 2025 | ||||||||||||