Environment Canada data presented here is representative of weather in those regions through which the highway passes.
Issued: Wednesday July 18, 2018 at 16:00 PDT
| Tonight | Clear. Increasing cloudiness after midnight. Windy early this evening. Low 15. |
| Thursday | Cloudy. Becoming windy late in the afternoon. High 24. Humidex 27. UV index 5 or moderate. |
| Thursday night | Cloudy. Windy early in the evening. Low 14. |
| Friday | Clearing. High 24. |
| Friday night | Clear. Low 12. |
| Saturday | A mix of sun and cloud. High 23. |
| Saturday night | Clear. Low 13. |
| Sunday | Sunny. High 28. |
| Sunday night | Clear. Low 14. |
| Monday | Sunny. High 31. |
| Monday night | Clear. Low 15. |
| Tuesday | Sunny. High 31. |
Based on Environment Canada data
WARNING:
HEAT WARNING
Issued: Wednesday July 18, 2018 at 15:45 PDT
Issued: Wednesday July 18, 2018 at 16:00 PDT
| Tonight | Clear. Wind south 40 km/h gusting to 60 diminishing to 20 gusting to 40 near midnight. Low 20. |
| Thursday | Sunny. Wind south 20 km/h gusting to 40 increasing to 50 gusting to 70 in the afternoon. High 30. UV index 8 or very high. |
| Thursday night | A few clouds. Wind south 50 km/h gusting to 70 becoming light after midnight. Low 18. |
| Friday | Sunny. High 23. |
| Friday night | Clear. Low 12. |
| Saturday | Sunny. High 27. |
| Saturday night | Clear. Low 13. |
| Sunday | Sunny. High 30. |
| Sunday night | Clear. Low 14. |
| Monday | Sunny. High 28. |
| Monday night | Clear. Low 14. |
| Tuesday | Sunny. High 29. |
Based on Environment Canada data
WARNING:
HEAT WARNING
Issued: Wednesday July 18, 2018 at 15:45 PDT
Issued: Wednesday July 18, 2018 at 16:00 PDT
| Tonight | Partly cloudy. 30 percent chance of showers this evening. Low 17. |
| Thursday | Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Wind becoming west 30 km/h in the afternoon. High 30. Humidex 32. UV index 8 or very high. |
| Thursday night | Partly cloudy with 30 percent chance of showers. Wind west 30 km/h becoming light in the evening. Low 16. |
| Friday | A mix of sun and cloud with 30 percent chance of showers. High 19. |
| Friday night | Cloudy periods. Low 10. |
| Saturday | A mix of sun and cloud. High 25. |
| Saturday night | Cloudy periods. Low 12. |
| Sunday | A mix of sun and cloud. High 28. |
| Sunday night | Clear. Low 15. |
| Monday | Sunny. High 29. |
| Monday night | Clear. Low 15. |
| Tuesday | Sunny. High 31. |
Based on Environment Canada data