easeweather.com
St. Catharines
AbbotsfordAjaxAuroraBanffBarrieBoisbriandBouchervilleBramptonBrandonBrantfordBrossardBurlingtonBurnabyCalgaryCambridgeCharlottetownChathamChilliwackCoquitlamCornwallDartmouthDeltaDorvalEdmontonFort McMurrayFrederictonGatineauGranbyGrande PrairieGreater SudburyGuelphHalifaxHamiltonKamloopsKanataKelownaKingstonKitchenerLangleyLavalLethbridgeLindsayLondonMarkhamMiltonMissionMississaugaMonctonMont-RoyalMontréalMoose JawNanaimoNepeanNew GlasgowNewmarketNiagara FallsNorfolk CountyNorth BattlefordNorth BayOakvilleOkanaganOrilliaOshawaOttawaPentictonPeterboroughPickeringPointe-ClairePrince AlbertPrince EdwardPrince GeorgeQuébecRed DeerReginaRichmond HillSaguenaySaint JohnSarniaSaskatoonSault Ste. MarieSherbrooke
St. Catharines
St. John'sSurreySydneyTerrebonneThunder BayTimminsTorontoVancouverVaughanVictoriaWasaga BeachWaterlooWellandWest VancouverWhistlerWindsorWinnipegWoodstockYellowknife More Locations
Canada weather

Weather in St. Catharines for October 2025

Your guide to St. Catharines weather in October - trends and predictions

    Temperatures

  • Until now, October 2025 in St. Catharines has been nearly identical to the historical average, with a temperature of 16.3 °C (showing only a slight deviation of -0.3 °C).

  • The forecast for the upcoming days in St. Catharines predicts a temperature of 9.7 °C, which is slightly above the historical average.

  • In general, the average temperature in St. Catharines at the beginning of October is 22 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.1 °C by the end of October.

    • Rain 🌧️

  • The climate of St. Catharines in October is notably wet, with an average of 13 rainy days, and a total of 37 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
27 km/h
Avg max wind
Average humidity
72 %
Avg humidity

St. Catharines Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
20°
2
Fog
22°
3
Overcast
25°
4
Mist
24°
5
Patchy light drizzle
24°
6
Light rain shower
22°
7
Light rain
17°
8
Light rain shower
14°
9
Cloudy
14°
10
Patchy rain possible
14°
11
Patchy rain possible
18°
12
Partly cloudy
17°
13
Cloudy
13°
14
Light drizzle
13°
15
Light rain shower
12°
16
Light rain shower
13°
17
Patchy rain possible
13°
18
Patchy rain possible
18°
19
Patchy rain possible
19°
20
Light rain shower
16°
21
Patchy rain possible
17°
22
Light rain shower
14°
23
Overcast
14°
24
Overcast
14°
25
Light drizzle
15°
26
Light rain
14°
27
Partly cloudy
13°
28
Light rain
14°
29
Moderate rain
12°
30
Moderate rain
10°
31
Heavy rain
7°

Temperatures trend during October in St. Catharines

See the weather trend as well as the moving average line

October weather in St. Catharines day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Overcast
Overcast
 20° /13° 0 mm 5
2 Oct. Fog
Fog
 22° /11° 0 mm 5
3 Oct. Overcast
Overcast
 25° /12° 0 mm 6
4 Oct. Mist
Mist
 24° /13° 0 mm 5
5 Oct. Patchy light drizzle
Patchy light drizzle
 24° /15° 0.1 mm 6
6 Oct. Light rain shower
Light rain shower
 22° /13° 6.8 mm 5
7 Oct. Light rain
Light rain
 17° /11° 11.7 mm 4
8 Oct. Light rain shower
Light rain shower
 14° /9° 3.5 mm 4
9 Oct. Cloudy
Cloudy
 14° /6° 0 mm 3
10 Oct. Patchy rain possible
Patchy rain possible
 14° /6° 0.1 mm 4
11 Oct. Patchy rain possible
Patchy rain possible
 18° /8° 1.1 mm 4
12 Oct. Partly cloudy
Partly cloudy
 17° /10° 0 mm 5
13 Oct. Cloudy
Cloudy
 13° /8° 4 mm 3
14 Oct. Light drizzle
Light drizzle
 13° /7° 1.2 mm 3
15 Oct. Light rain shower
Light rain shower
 12° /7° 2.7 mm 3
16 Oct. Light rain shower
Light rain shower
 13° /7° 0.9 mm 4
17 Oct. Patchy rain possible
Patchy rain possible
 13° /6° 3.1 mm 4
18 Oct. Patchy rain possible
Patchy rain possible
 18° /6° 0 mm 5
19 Oct. Patchy rain possible
Patchy rain possible
 19° /10° 14 mm 4
20 Oct. Light rain shower
Light rain shower
 16° /9° 18.7 mm 4
21 Oct. Patchy rain possible
Patchy rain possible
 17° /10° 0.2 mm 4
22 Oct. Light rain shower
Light rain shower
 14° /8° 16.7 mm 3
23 Oct. Overcast
Overcast
 14° /7° 1.2 mm 3
24 Oct. Overcast
Overcast
 14° /6° 0 mm 4
25 Oct. Light drizzle
Light drizzle
 15° /8° 1.1 mm 4
26 Oct. Light rain
Light rain
 14° /9° 0.6 mm 3
27 Oct. Partly cloudy
Partly cloudy
 13° /8° 0.1 mm 4
28 Oct. Light rain
Light rain
 14° /4° 1.1 mm 4
29 Oct. Moderate rain
Moderate rain
 12° /7° 3.2 mm 3
30 Oct. Moderate rain
Moderate rain
 10° /6° 16 mm 0.1
31 Oct. Heavy rain
Heavy rain
 7° /5° 30.9 mm 0.1
Next
Important Notice
Our weather forecast for St. Catharines in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St. Catharines forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

St. Catharines in October - FAQ

What are the expected maximum and minimum temperatures in St. Catharines during October?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in St. Catharines during October?
In October, St. Catharines can expect light to moderate rainfall, totaling 37 mm across approximately 13 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in St. Catharines during October?
The average wind speed in St. Catharines during October is 27 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in St. Catharines

Explore the daily rainfall trends and prepare for St. Cathariness October weather 💧

UV exposure in St. Catharines during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

Quick links

More St. Catharines weather pages
You are here
Location coordinates Where is St. Catharines?

Get accurate weather forecasts for St. Catharines, located at latitude 43.171 and longitude -79.243. Stay updated with localized weather information tailored for St. Catharines.

Found a mistake?
We appreciate your attention to details. Tell us here.