10-day forecast · St. Catharines
Day-by-day outlook up to 14 days: highs, lows, precipitation totals, wind and UV. Planning further ahead? Open the 30-day outlook →
Tue · Today
Showers
87°
69°
0.04 in
⌄
Wind 13 mph SW
Gusts 23 mph
UV index 6 – Moderate
Precip chance 67% · 0.04 in
Sunrise 6:41 AM
Sunset 7:52 PM
Wed · Tomorrow
Fog
82°
67°
2.37 in
⌄
Wind 31 mph W
Gusts 41 mph
UV index 5 – Moderate
Precip chance 92% · 2.37 in
Sunrise 6:42 AM
Sunset 7:50 PM
Thursday 3/9
Showers
78°
69°
0.21 in
⌄
Wind 13 mph S
Gusts 20 mph
UV index 7 – High
Precip chance 82% · 0.21 in
Sunrise 6:43 AM
Sunset 7:49 PM
Friday 4/9
Sunny
75°
65°
0.01 in
⌄
Wind 13 mph NW
Gusts 19 mph
UV index 7 – High
Precip chance 19% · 0.01 in
Sunrise 6:44 AM
Sunset 7:47 PM
Saturday 5/9
Sunny
71°
62°
12%
⌄
Wind 13 mph NE
Gusts 18 mph
UV index 6 – High
Precip chance 12%
Sunrise 6:45 AM
Sunset 7:45 PM
Sunday 6/9
Partly cloudy
67°
62°
14%
⌄
Wind 14 mph E
Gusts 22 mph
UV index 5 – Moderate
Precip chance 14%
Sunrise 6:46 AM
Sunset 7:43 PM
Monday 7/9
Mostly cloudy
73°
62°
0.01 in
⌄
Wind 23 mph N
Gusts 24 mph
UV index 5 – Moderate
Precip chance 43% · 0.01 in
Sunrise 6:47 AM
Sunset 7:42 PM
Tuesday 8/9
Showers
61°
52°
0.31 in
⌄
Wind 25 mph NE
Gusts 28 mph
UV index 3 – Moderate
Precip chance 79% · 0.31 in
Sunrise 6:48 AM
Sunset 7:40 PM
Wednesday 9/9
Sunny
62°
52°
0.09 in
⌄
Wind 15 mph E
Gusts 19 mph
UV index 5 – Moderate
Precip chance 58% · 0.09 in
Sunrise 6:50 AM
Sunset 7:38 PM
Thursday 10/9
Showers
68°
61°
0.39 in
⌄
Wind 22 mph SW
Gusts 43 mph
UV index 4 – Moderate
Precip chance 90% · 0.39 in
Sunrise 6:51 AM
Sunset 7:36 PM
Friday 11/9
Mostly cloudy
68°
61°
0.01 in
⌄
Wind 7 mph E
Gusts 15 mph
UV index 5 – Moderate
Precip chance 37% · 0.01 in
Sunrise 6:52 AM
Sunset 7:34 PM
Saturday 12/9
Mostly cloudy
73°
67°
0.03 in
⌄
Wind 16 mph S
Gusts 27 mph
UV index 5 – Moderate
Precip chance 64% · 0.03 in
Sunrise 6:53 AM
Sunset 7:33 PM
Sunday 13/9
Mostly cloudy
72°
62°
13%
⌄
Wind 17 mph W
Gusts 26 mph
UV index 5 – Moderate
Precip chance 13%
Sunrise 6:54 AM
Sunset 7:31 PM
Monday 14/9
Sunny
74°
60°
8%
⌄
Wind 20 mph SW
Gusts 25 mph
UV index 5 – Moderate
Precip chance 8%
Sunrise 6:55 AM
Sunset 7:29 PM
10-day outlook for St. Catharines
Over the next ten days St. Catharines peaks at 87° on Tuesday and bottoms out at 52° on Tuesday. The back half cools off by roughly 19°, so the warmest days are the ones in front of you. Add it up and about 3.4 in of precipitation falls over the period, spread across 7 unsettled days, with Wednesday the most likely (92%).