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Hourly Forecast - Saint-Hyacinthe

YELLOW ADVISORY - FROST

Impact Level: Moderate

Forecast Confidence: High


Temperatures will drop near or under the freezing mark overnight tonight. Damage to plants, trees, and crops is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.

In effect for:

  • Saint-Hyacinthe - Acton Vale area
Date/Time
(EDT)
Temp.
(°C)
Weather ConditionsLikelihood of precip (%) UV indexWind
(km/h)
20 October 2026
12:00 13 Sunny

Sunny

03N 20
13:00 13 Sunny

Sunny

03N 20
14:00 14 Sunny

Sunny

02N 20
15:00 14 Sunny

Sunny

01N 15
16:00 15 Sunny

Sunny

0*N 15
17:00 15 Sunny

Sunny

0*N 15
18:00 13 Clear

Clear

0*NE 10
19:00 10 Clear

Clear

0*NE 10
20:00 8 Clear

Clear

0*NE 10
21:00 7 Clear

Clear

0*VR 5
22:00 6 Clear

Clear

0*VR 5
23:00 5 Clear

Clear

0*VR 5
21 October 2026
00:00 4 Clear

Clear

0*VR 5
01:00 2 Clear

Clear

0*VR 5
02:00 1 Clear

Clear

0*VR 5
03:00 1 Clear

Clear

0*VR 5
04:00 0 Clear

Clear

0*VR 5
05:00 0 Clear

Clear

0*VR 5
06:00 1 Clear

Clear

0*VR 5
07:00 1 Sunny

Sunny

0*VR 5
08:00 2 Sunny

Sunny

01VR 5
09:00 4 Sunny

Sunny

02VR 5
10:00 7 Sunny

Sunny

03VR 5
11:00 9 Sunny

Sunny

03VR 5

* Value not significant

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