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Saint-Hyacinthe
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Weather in Saint-Hyacinthe for May 2026

Your guide to Saint-Hyacinthe weather in May - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Saint-Hyacinthe during May is quite rare, with fewer than 2 snowy days on average.
    According to Saint-Hyacinthe snow forecast for May 2026, 1 snowy day is expected at the beginning of May at Sunday, 3 May.

    • Temperatures

  • The forecast for the first days of May 2026 in Saint-Hyacinthe predicts temperatures to be around 14 °C, close to the historical average.

  • In general, the average temperature in Saint-Hyacinthe at the beginning of May is 11.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.3 °C by the end of May.

    • Rain 🌧️

  • Saint-Hyacinthe experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 103.9 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
10
Dry days
Average rainy days
21
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/8°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Saint-Hyacinthe Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
10°
2
Partly cloudy
10°
3
Patchy rain possible
10°
4
Patchy rain possible
10°
5
Patchy rain possible
14°
6
Patchy rain possible
12°
7
Partly cloudy
13°
8
Patchy rain possible
9°
9
Partly cloudy
13°
10
Cloudy
16°
11
Partly cloudy
19°
12
Partly cloudy
24°
13
Partly cloudy
20°
14
Cloudy
20°
15
Overcast
21°
16
Moderate or heavy rain shower
20°
17
Patchy rain possible
19°
18
Sunny
16°
19
Overcast
17°
20
Heavy rain at times
17°
21
Patchy rain possible
20°
22
Sunny
17°
23
Sunny
18°
24
Moderate or heavy rain shower
12°
25
Partly cloudy
16°
26
Partly cloudy
22°
27
Partly cloudy
24°
28
Sunny
25°
29
Sunny
19°
30
Partly cloudy
21°
31
Sunny
22°

Temperatures trend during May in Saint-Hyacinthe

See the weather trend as well as the moving average line

May weather in Saint-Hyacinthe day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Patchy rain possible
Patchy rain possible
 10° /2° 0.1 mm 0 cm
2 May Partly cloudy
Partly cloudy
 10° /1° 0 mm 0 cm
3 May Patchy rain possible
Patchy rain possible
 10° /0° 1.6 mm 0.4 cm
4 May Patchy rain possible
Patchy rain possible
 10° /1° 0.4 mm 0 cm
5 May Patchy rain possible
Patchy rain possible
 14° /2° 4.7 mm 0 cm
6 May Patchy rain possible
Patchy rain possible
 12° /5° 0.1 mm 0 cm
7 May Partly cloudy
Partly cloudy
 13° /2° 0 mm 0 cm
8 May Patchy rain possible
Patchy rain possible
 9° /4° 2.2 mm 0 cm
9 May Partly cloudy
Partly cloudy
 13° /2° 0 mm 0 cm
10 May Cloudy
Cloudy
 16° /4° 0 mm 0 cm
11 May Partly cloudy
Partly cloudy
 19° /6° 0 mm 0 cm
12 May Partly cloudy
Partly cloudy
 24° /12° 0 mm 0 cm
13 May Partly cloudy
Partly cloudy
 20° /7° 0.9 mm 0 cm
14 May Cloudy
Cloudy
 20° /9° 4.6 mm 0 cm
15 May Overcast
Overcast
 21° /9° 0 mm 0 cm
16 May Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /10° 8.3 mm 0 cm
17 May Patchy rain possible
Patchy rain possible
 19° /10° 5.7 mm 0 cm
18 May Sunny
Sunny
 16° /8° 9.6 mm 0 cm
19 May Overcast
Overcast
 17° /7° 5.1 mm 0 cm
20 May Heavy rain at times
Heavy rain at times
 17° /9° 2.1 mm 0 cm
21 May Patchy rain possible
Patchy rain possible
 20° /10° 4.4 mm 0 cm
22 May Sunny
Sunny
 17° /9° 5.2 mm 0 cm
23 May Sunny
Sunny
 18° /8° 0.1 mm 0 cm
24 May Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /5° 5.7 mm 0 cm
25 May Partly cloudy
Partly cloudy
 16° /4° 0 mm 0 cm
26 May Partly cloudy
Partly cloudy
 22° /7° 0 mm 0 cm
27 May Partly cloudy
Partly cloudy
 24° /8° 2.6 mm 0 cm
28 May Sunny
Sunny
 25° /11° 8.7 mm 0 cm
29 May Sunny
Sunny
 19° /11° 0 mm 0 cm
30 May Partly cloudy
Partly cloudy
 21° /9° 0 mm 0 cm
31 May Sunny
Sunny
 22° /9° 2.2 mm 0 cm
Next
Important Notice
Our weather forecast for Saint-Hyacinthe in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint-Hyacinthe forecast closer to your planned date for the most up-to-date weather information.
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Saint-Hyacinthe in May - FAQ

What are the expected maximum and minimum temperatures in Saint-Hyacinthe during May?

Enjoy moderate daytime temperatures of up to 17° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Saint-Hyacinthe during May?

Significant rainfall exceeding 103.9 mm is expected in Saint-Hyacinthe during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Saint-Hyacinthe during May?

The average wind speed in Saint-Hyacinthe during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

Saint-Hyacinthe snow forecast May 2026

Track daily snowfall levels and discover Saint-Hyacinthe’s snowy potential this May ❄️

May rainfall patterns in Saint-Hyacinthe

Explore the daily rainfall trends and prepare for Saint-Hyacinthes May weather 💧
Typically, Saint-Hyacinthe has 21 rainy days in May with a total of 103.9 mm of rainfall.

UV exposure in Saint-Hyacinthe during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

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Location coordinates Where is Saint-Hyacinthe?

Get accurate weather forecasts for Saint-Hyacinthe, located at latitude 45.631 and longitude -72.957. Stay updated with localized weather information tailored for Saint-Hyacinthe.

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