Current Conditions
Port Colborne, Ontario
Wind
SSW 5 mph8 km/h
Humidity
92%
Cloud Cover
41%
As of Tuesday, September 1, 2026 at 9:18 PM EDT
Today's Outlook
Night
Overcast, with a low around 74°F23°C. Breezy from the SSW at 8 to 10 mph13 to 16 km/h. 84% chance of rain throughout the night.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Rain | High 78°F26°C | Low 74°F23°C | Precip 0.49 in12.4 mm84% | Cloud 88% | Wind SSW 10 mph16 km/h | Wednesday: Overcast and warm, with a high of 78°F26°C and morning low of 74°F23°C. Breezy from the SW at 11 to 12 mph18 to 20 km/h. 68% chance of rain throughout the day. Heavy, humid air. Wednesday Night: Overcast, with a low around 74°F23°C. Breezy from the SSW at 8 to 10 mph13 to 16 km/h. 84% chance of rain throughout the night. | |
| Rain | High 78°F25°C | Low 71°F22°C | Precip 0.38 in9.6 mm65% | Cloud 67% | Wind WSW 7 mph11 km/h | Thursday: Mostly cloudy and warm, with a high of 78°F25°C and morning low of 71°F22°C. Breezy from the WSW at 7 mph11 km/h. 42% chance of showers throughout the day. Humid. Thursday Night: Mostly cloudy, with a low around 71°F22°C. Breezy from the WSW at 7 to 10 mph12 to 15 km/h. 65% chance of rain throughout the night. | |
| Showers | High 76°F24°C | Low 69°F21°C | Precip 0.09 in2.4 mm44% | Cloud 59% | Wind NNW 6 mph10 km/h | Friday: Mostly cloudy and warm, with a high of 76°F24°C and morning low of 69°F21°C. Light wind from the NNW around 5 mph8 km/h. Friday Night: Partly cloudy, with a low around 70°F21°C. Breezy from the N at 7 to 10 mph11 to 16 km/h. 44% chance of showers overnight. | |
| Clear | High 72°F22°C | Low 66°F19°C | Precip 0 in0 mm— | Cloud 25% | Wind NNE 9 mph14 km/h | Saturday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 66°F19°C. Breezy from the NNE at 9 mph14 km/h. Saturday Night: Mostly clear, with a low around 67°F19°C. Breezy from the NNE at 9 to 10 mph14 to 16 km/h. | |
| Clear | High 72°F22°C | Low 65°F18°C | Precip 0.01 in0.2 mm8% | Cloud 28% | Wind NE 7 mph12 km/h | Sunday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 65°F18°C. Breezy from the NE at 7 to 8 mph12 to 12 km/h. Sunday Night: Mostly clear, with a low around 65°F18°C. Breezy from the ENE at 7 mph11 km/h. | |
| Partly Cloudy | High 74°F23°C | Low 65°F18°C | Precip 0.01 in0.3 mm7% | Cloud 41% | Wind E 6 mph9 km/h | Monday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 65°F18°C. Light wind from the NE around 5 mph8 km/h. Monday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. | |
| Drizzle | High 73°F23°C | Low 66°F19°C | Precip 0.04 in0.9 mm11% | Cloud 74% | Wind ESE 8 mph14 km/h | Tuesday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. 10% chance of drizzle in the afternoon. Tuesday Night: Mostly cloudy, with a low around 66°F19°C. Breezy from the ESE at 9 to 10 mph14 to 16 km/h. 11% chance of drizzle in the evening. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 2 | 78°F26°C | 74°F23°C | 0.49 in12.4 mm· 84% | 88% | Rain | SSW 10 mph16 km/h | |
DayOvercast and warm, with a high of 78°F26°C and morning low of 74°F23°C. Breezy from the SW at 11 to 12 mph18 to 20 km/h. 68% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 74°F23°C. Breezy from the SSW at 8 to 10 mph13 to 16 km/h. 84% chance of rain throughout the night. | |||||||
| ThursdaySep 3 | 78°F25°C | 71°F22°C | 0.38 in9.6 mm· 65% | 67% | Rain | WSW 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 71°F22°C. Breezy from the WSW at 7 mph11 km/h. 42% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the WSW at 7 to 10 mph12 to 15 km/h. 65% chance of rain throughout the night. | |||||||
| FridaySep 4 | 76°F24°C | 69°F21°C | 0.09 in2.4 mm· 44% | 59% | Showers | NNW 6 mph10 km/h | |
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 69°F21°C. Light wind from the NNW around 5 mph8 km/h. NightPartly cloudy, with a low around 70°F21°C. Breezy from the N at 7 to 10 mph11 to 16 km/h. 44% chance of showers overnight. | |||||||
| SaturdaySep 5 | 72°F22°C | 66°F19°C | 0 in0 mm· — | 25% | Clear | NNE 9 mph14 km/h | |
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 66°F19°C. Breezy from the NNE at 9 mph14 km/h. NightMostly clear, with a low around 67°F19°C. Breezy from the NNE at 9 to 10 mph14 to 16 km/h. | |||||||
| SundaySep 6 | 72°F22°C | 65°F18°C | 0.01 in0.2 mm· 8% | 28% | Clear | NE 7 mph12 km/h | |
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 65°F18°C. Breezy from the NE at 7 to 8 mph12 to 12 km/h. NightMostly clear, with a low around 65°F18°C. Breezy from the ENE at 7 mph11 km/h. | |||||||
| MondaySep 7 | 74°F23°C | 65°F18°C | 0.01 in0.3 mm· 7% | 41% | Partly Cloudy | E 6 mph9 km/h | |
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 65°F18°C. Light wind from the NE around 5 mph8 km/h. NightPartly cloudy, with a low around 65°F18°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. | |||||||
| TuesdaySep 8 | 73°F23°C | 66°F19°C | 0.04 in0.9 mm· 11% | 74% | Drizzle | ESE 8 mph14 km/h | |
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. 10% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 66°F19°C. Breezy from the ESE at 9 to 10 mph14 to 16 km/h. 11% chance of drizzle in the evening. | |||||||
| WednesdaySep 9 | 75°F24°C | 69°F20°C | 0.09 in2.3 mm· 19% | 71% | Drizzle | SSW 11 mph18 km/h | |
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 69°F20°C. Breezy from the SSW at 11 mph18 km/h. 15% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 69°F20°C. Breezy from the SSW at 11 to 12 mph18 to 20 km/h. 19% chance of drizzle throughout the night. | |||||||
| ThursdaySep 10 | 75°F24°C | 71°F22°C | 0.2 in5 mm· 29% | 61% | Showers | WSW 13 mph20 km/h | |
DayMostly cloudy and warm, with a high of 75°F24°C. Breezy from the WSW at 14 to 15 mph22 to 24 km/h. 29% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the WSW at 12 to 13 mph19 to 21 km/h. 26% chance of showers throughout the night. | |||||||
| FridaySep 11 | 72°F22°C | 67°F20°C | 0.13 in3.4 mm· 22% | 60% | Showers | WSW 10 mph17 km/h | |
DayMostly cloudy and warm, with a high of 72°F22°C. Breezy from the WSW at 11 mph17 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the W at 10 to 11 mph17 to 17 km/h. 22% chance of showers throughout the night. | |||||||
| SaturdaySep 12 | 71°F22°C | 66°F19°C | 0.16 in4 mm· 21% | 58% | Showers | W 11 mph17 km/h | |
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 66°F19°C. Breezy from the WSW at 11 mph17 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the W at 11 mph17 km/h. 21% chance of showers throughout the night. | |||||||
| SundaySep 13 | 70°F21°C | 64°F18°C | 0.13 in3.3 mm· 17% | 55% | Showers | WSW 10 mph17 km/h | |
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 64°F18°C. Breezy from the WSW at 10 to 11 mph17 to 17 km/h. 15% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the WSW at 11 mph17 km/h. 17% chance of showers throughout the night. | |||||||
| MondaySep 14 | 70°F21°C | 64°F18°C | 0.13 in3.3 mm· 19% | 60% | Showers | SW 10 mph17 km/h | |
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 64°F18°C. Breezy from the SW at 10 to 11 mph17 to 17 km/h. 15% chance of drizzle throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the SSW at 10 to 11 mph17 to 17 km/h. 19% chance of showers throughout the night. | |||||||
| TuesdaySep 15 | 69°F21°C | 64°F18°C | 0.13 in3.3 mm· 22% | 59% | Showers | SW 10 mph17 km/h | |
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 64°F18°C. Breezy from the SW at 10 mph16 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the SW at 10 to 11 mph17 to 17 km/h. 22% chance of showers throughout the night. | |||||||
| WednesdaySep 16 | 69°F20°C | 64°F18°C | 0.11 in2.9 mm· 25% | 54% | Showers | WSW 11 mph17 km/h | |
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the WSW at 11 mph17 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the WSW at 11 mph17 km/h. 24% chance of drizzle throughout the night. | |||||||
Nearby Cities
About This Forecast
This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.
WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →
Access WeatherMesh forecasts programmatically via our API. API Documentation →
Coordinates: 42.9001°N, 79.2329°W·Elevation: 188m·Timezone: America/Toronto·Population: 18,306