St. Catharines Weather Today · 7-Day Forecast
Grey Sky Settles Over the Town
Cloud lies thick and low. The light is dim and the air is still.
Warmest Tuesday at 15° · coldest night Friday at 5°
The short of it: St. Catharines weather on Monday, 9 November 2026: local time, 10 °C (49 °F) with an overcast sky, feeling like 5 °C (42 °F). Today’s high 10 °C (51 °F), low 9 °C (48 °F). No rain expected in the next 24 hours. No warnings in force. Source: Wanted Weather forecast service (global weather models), updated 03:00 local time.
ST. CATHARINES, Monday. — St. Catharines may look for an overcast sky this day, with the mercury climbing to about 10° before sinking to 9° by night. Count it a gift: 2° above the November average of 9° for these parts. The wind keeps up from the W at 23 km/h, gusting to 30 km/h, and the glass is rising, a sign of settled weather.
Of the 7 days ahead, Tuesday looks the finest at near 15°, while Friday night will be the coldest at 5°. Rain or snow is due on 1 of them, some 4.1 mm in all. Nights run 7° milder than the November norm of 2°.
By the Almanac's reckoning, November in St. Catharines runs from 2° at night to 9° by day, with some 72 mm of rain. July is the warmest month here at 27°, January the coldest at -6°, and April the wettest with 85 mm. Snow usually lies on the ground from December to March. The best months to ride in are September and June.
The sun is up 9 h 57 min today, and the days are shortening by about 2 minutes each. The station stands 0 m above the sea.
The Hours to Come
Temperature by the hour · rain & snow in the hour beneathThe hour-by-hour ledger
| Hour | Sky | Temp | Feels | Wind | Rain |
|---|---|---|---|---|---|
| Now | Overcast | 10° | 5° | 15 km/h | – |
| 4 AM | Overcast | 10° | 6° | 15 km/h | – |
| 5 AM | Overcast | 10° | 5° | 15 km/h | – |
| 6 AM | Partly cloudy | 10° | 5° | 16 km/h | – |
| 7 AM | Overcast | 9° | 4° | 17 km/h | – |
| 8 AM | Partly cloudy | 9° | 4° | 17 km/h | – |
| 9 AM | Overcast | 9° | 4° | 16 km/h | – |
| 10 AM | Overcast | 9° | 4° | 16 km/h | – |
| 11 AM | Overcast | 10° | 5° | 15 km/h | – |
| 12 PM | Overcast | 10° | 5° | 15 km/h | – |
| 1 PM | Overcast | 10° | 5° | 15 km/h | – |
| 2 PM | Overcast | 10° | 6° | 15 km/h | – |
| 3 PM | Partly cloudy | 10° | 6° | 13 km/h | – |
| 4 PM | Overcast | 10° | 6° | 12 km/h | – |
| 5 PM | Overcast | 10° | 6° | 11 km/h | – |
| 6 PM | Overcast | 10° | 6° | 11 km/h | – |
| 7 PM | Overcast | 10° | 6° | 11 km/h | – |
| 8 PM | Overcast | 10° | 6° | 10 km/h | – |
| 9 PM | Overcast | 10° | 6° | 9 km/h | – |
| 10 PM | Overcast | 9° | 6° | 9 km/h | – |
| 11 PM | Overcast | 9° | 6° | 9 km/h | – |
| 12 AM | Partly cloudy | 9° | 6° | 8 km/h | – |
| 1 AM | Overcast | 8° | 5° | 8 km/h | – |
| 2 AM | Partly cloudy | 8° | 5° | 8 km/h | – |
Seven-Day Outlook · Classified
Highs in large type · pick a dayToday (Nov 9): overcast, high 10°, low 9°, dry, gusts to 31 km/h. Sun up 7:02 AM, down 4:59 PM. Cloud lies thick and low. The light is dim and the air is still.
Tuesday (Nov 10): overcast, high 15°, low 8°, dry, gusts to 33 km/h. Sun up 7:03 AM, down 4:57 PM. Cloud lies thick and low. The light is dim and the air is still.
Wednesday (Nov 11): overcast, high 13°, low 10°, dry, gusts to 11 km/h. Sun up 7:04 AM, down 4:56 PM. Cloud lies thick and low. The light is dim and the air is still.
Thursday (Nov 12): light rain, high 11°, low 5°, 2.4 mm of rain, gusts to 35 km/h. Sun up 7:06 AM, down 4:55 PM. A gentle rain falls over the district. Keep under a roof if you can.
Friday (Nov 13): light rain, high 6°, low 5°, 0.9 mm of rain, gusts to 41 km/h. Sun up 7:07 AM, down 4:54 PM. A gentle rain falls over the district. Keep under a roof if you can.
Saturday (Nov 14): light rain, high 7°, low 5°, 0.8 mm of rain, gusts to 29 km/h. Sun up 7:08 AM, down 4:53 PM. A gentle rain falls over the district. Keep under a roof if you can.
Sunday (Nov 15): overcast, high 8°, low 5°, dry, gusts to 23 km/h. Sun up 7:09 AM, down 4:52 PM. Cloud lies thick and low. The light is dim and the air is still.
The Week in Figures
| Day | Low · High | Rain | Gusts | Daylight | |
|---|---|---|---|---|---|
| Today | 9°10° | dry | 31 km/h | 9 h 57 min | |
| Tuesday | 8°15° | dry | 33 km/h | 9 h 54 min | |
| Wednesday | 10°13° | dry | 11 km/h | 9 h 52 min | |
| Thursday | 5°11° | 2.4 mm | 35 km/h | 9 h 49 min | |
| Friday | 5°6° | 0.9 mm | 41 km/h | 9 h 47 min | |
| Saturday | 5°7° | 0.8 mm | 29 km/h | 9 h 45 min | |
| Sunday | 5°8° | dry | 23 km/h | 9 h 43 min |
Warmest: Tuesday at 15°. Wettest: Thursday, 2.4 mm. Strongest gusts: Friday, 41 km/h.