Canada Life Forest City Road Races weather.
Typically 17°C on race morning; rain in 1 of the last 10 years. Race morning (07:00 to 11:00 local time) in London on race day in each of the last 10 years; the 2027 race is on 6 Jun 2027.
- Typical
- 17°C (63°F)
- race-morning average
- Coolest
- 12°C (54°F)
- lowest reading, 07:00–11:00
- Warmest
- 28°C (82°F)
- highest reading, 07:00–11:00
- Wet years
- 1 of 10
- rain, drizzle or worse
- Humidity
- 70%
- typical
- Wind
- 12 km/h
- typical, at 10 m
Race morning, 07:00–11:00
Year by year
| Race day | Average | Low–high | Humidity | Wind | Rain | Conditions |
|---|---|---|---|---|---|---|
| 7 Jun 2026 | 17°C (62°F) | 13°C (55°F)–20°C (68°F) | 79% | 11 km/h | 0.0 mm | Clear |
| 8 Jun 2025 | 16°C (61°F) | 14°C (57°F)–19°C (67°F) | 73% | 13 km/h | 0.0 mm | Overcast |
| 9 Jun 2024 | 15°C (60°F) | 12°C (54°F)–18°C (65°F) | 80% | 14 km/h | 0.1 mm | Clear |
| 4 Jun 2023 | 17°C (62°F) | 13°C (56°F)–21°C (69°F) | 43% | 15 km/h | 0.0 mm | Clear |
| 5 Jun 2022 | 17°C (63°F) | 13°C (55°F)–21°C (69°F) | 52% | 10 km/h | 0.0 mm | Overcast |
| 6 Jun 2021 | 24°C (76°F) | 20°C (68°F)–28°C (82°F) | 63% | 13 km/h | 0.0 mm | Partly cloudy |
| 7 Jun 2020 | 16°C (60°F) | 12°C (53°F)–19°C (67°F) | 66% | 6 km/h | 0.0 mm | Overcast |
| 9 Jun 2019 | 20°C (68°F) | 16°C (60°F)–23°C (74°F) | 65% | 17 km/h | 0.0 mm | Overcast |
| 3 Jun 2018 | 18°C (65°F) | 15°C (59°F)–22°C (71°F) | 77% | 11 km/h | 0.0 mm | Mainly clear |
| 4 Jun 2017 | 17°C (62°F) | 15°C (60°F)–19°C (66°F) | 89% | 8 km/h | 3.8 mm | Light drizzle |
Each row is the race's date that year where we know it, else the same weekday nearest its usual date. Temperatures and humidity are averaged over 07:00 to 11:00 local time, rain is the total over those hours, and conditions are the commonest over the morning.
Kit and pacing
What it means
Warm: adjust your goal pace
Around 17°C on race morning costs most runners time. Plan to run a few seconds per kilometer slower than in cool weather, take on fluid and salt at every station, and wear light colors and sun cream.
The weather varies a lot
Race mornings here have ranged by 9°C from year to year. Pack for both, and settle your kit and pacing from the forecast in the last few days.
General guidance from past years' numbers. Check the forecast in race week.
Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).