Hourly Forecast - Chilliwack
2 WEATHER ALERTS
YELLOW WARNING - RAINFALL
Impact Level: Moderate
Forecast Confidence: High
Rain, at times heavy, is expected. What: Rainfall amounts of 40 to 60 mm. When: Now until overnight tonight. Where: Metro Vancouver - northeast including Coquitlam and Maple Ridge, Metro Vancouver - North Shore including West Vancouver and North Vancouver, Howe Sound, Fraser Valley - west and central including Abbotsford and Chilliwack. Remarks: Another round of precipitation brought about by a Pacific frontal system, fuelled with an atmospheric river will bring more rain to parts of southwestern B.C. Total rainfall amounts of 40 to 60 mm are forecast before the heavy rain tapers to showers overnight tonight. Water will likely pool on roads and in low-lying areas. There may be a significant impact on rush hour traffic. Local utility outages are possible. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars. Watch for washouts near rivers, creeks and culverts. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm. For more information about the alerting program, please visit: Colour-coded Weather Alerts.
In effect for:
- Fraser Valley - central including Chilliwack
Regional ATOMYELLOW WARNING - WIND
Impact Level: Moderate
Forecast Confidence: High
Southwesterly winds gusting to 90 km/h are expected. Where: Fraser Valley - Central including Chilliwack, Fraser Valley - East including Hope. When: Now through early Wednesday morning. Remarks: A vigorous cold front will move across the South Coast tonight. In the wake of the front, strong southwesterly winds will funnel up through the Fraser Valley producing wind gusts up to 90 km/h. Winds will ease but remain gusty Wednesday morning. Local utility outages are possible. Secure loose objects. Stay away from fallen power lines. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm. For more information about the alerting program, please visit: Colour-coded Weather Alerts.
In effect for:
- Fraser Valley - central including Chilliwack
Regional ATOM| Date/Time (PST) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | Wind (km/h) |
|---|---|---|---|---|
| 17 December 2025 | ||||
| 03:00 | 6 |  Showers. Risk of thunderstorms | 80 | SW 60 gusts 90 |
| 04:00 | 6 | Showers. Risk of thunderstorms | 80 | SW 60 gusts 90 |
| 05:00 | 5 | Showers. Risk of thunderstorms | 80 | SW 60 gusts 90 |
| 06:00 | 5 | Showers. Risk of thunderstorms | 80 | SW 30 gusts 70 |
| 07:00 | 5 |  Showers | 80 | SW 30 gusts 70 |
| 08:00 | 6 | Showers | 80 | SW 30 gusts 70 |
| 09:00 | 6 | Showers | 80 | SW 30 gusts 70 |
| 10:00 | 6 | Showers | 80 | SW 30 gusts 70 |
| 11:00 | 6 | Showers | 80 | SW 20 gusts 40 |
| 12:00 | 7 | Showers | 80 | SW 20 gusts 40 |
| 13:00 | 7 | Showers | 80 | SW 20 gusts 40 |
| 14:00 | 7 | Showers | 80 | SW 20 gusts 40 |
| 15:00 | 7 | Showers | 80 | SW 20 gusts 40 |
| 16:00 | 6 | Showers | 80 | SW 20 gusts 40 |
| 17:00 | 6 | Showers | 80 | SW 20 gusts 40 |
| 18:00 | 6 | Showers | 100 | SW 20 gusts 40 |
| 19:00 | 6 | Showers | 100 | SW 20 gusts 40 |
| 20:00 | 5 | Showers | 100 | SW 20 gusts 40 |
| 21:00 | 5 |  Chance of showers | 60 | SW 20 gusts 40 |
| 22:00 | 5 | Chance of showers | 60 | VR 5 |
| 23:00 | 4 | Chance of showers | 60 | VR 5 |
| 18 December 2025 | ||||
| 00:00 | 4 | Chance of showers | 60 | VR 5 |
| 01:00 | 3 | Chance of showers | 60 | VR 5 |
| 02:00 | 3 | Chance of showers | 60 | VR 5 |
* Value not significant
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