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Fort St. John
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Weather in Fort St. John for May 2026

Your guide to Fort St. John weather in May - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Fort St. John during May is quite rare, with fewer than 2 snowy days on average.
    According to Fort St. John snow forecast for May 2026, 2 snowy days are expected at the beginning of May. The first snowfall for May is expected in Tuesday, 5 May.

    • Temperatures

  • The forecast for the first days of May 2026 in Fort St. John predicts temperatures to be around 15 °C, close to the historical average.

  • In general, the average temperature in Fort St. John at the beginning of May is 15 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.7 °C by the end of May.

    • Rain 🌧️

  • Fort St. John experiences moderate rainfall in May, with an average of 7 rainy days and a total precipitation of 59.6 mm.

    • More

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

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/5°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
55 %
Avg humidity

Fort St. John Weather May

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

Temperatures trend during May in Fort St. John

See the weather trend as well as the moving average line

May weather in Fort St. John 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
 15° /6° 0.6 mm 0 cm
2 May Sunny
Sunny
 20° /5° 0 mm 0 cm
3 May Sunny
Sunny
 20° /8° 0 mm 0 cm
4 May Sunny
Sunny
 22° /9° 0 mm 0 cm
5 May Patchy rain possible
Patchy rain possible
 10° /2° 1.5 mm 1.1 cm
6 May Partly cloudy
Partly cloudy
 8° /0° 0.1 mm 0 cm
7 May Partly cloudy
Partly cloudy
 10° /-1° 0 mm 0 cm
8 May Partly cloudy
Partly cloudy
 10° /0° 0 mm 0 cm
9 May Sunny
Sunny
 10° /0° 0 mm 0 cm
10 May Sunny
Sunny
 13° /1° 0 mm 0 cm
11 May Sunny
Sunny
 19° /3° 0 mm 0 cm
12 May Sunny
Sunny
 20° /7° 0 mm 0 cm
13 May Patchy rain possible
Patchy rain possible
 17° /6° 0 mm 0 cm
14 May Cloudy
Cloudy
 14° /6° 0 mm 0 cm
15 May Light rain shower
Light rain shower
 15° /4° 0.7 mm 0 cm
16 May Light rain
Light rain
 11° /4° 9.6 mm 0 cm
17 May Patchy rain possible
Patchy rain possible
 15° /5° 0.7 mm 0 cm
18 May Thundery outbreaks possible
Thundery outbreaks possible
 15° /4° 0 mm 0 cm
19 May Partly cloudy
Partly cloudy
 15° /4° 4.5 mm 0 cm
20 May Moderate rain at times
Moderate rain at times
 20° /8° 0.2 mm 0 cm
21 May Partly cloudy
Partly cloudy
 19° /9° 11.9 mm 0 cm
22 May Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /6° 22.2 mm 0 cm
23 May Heavy rain at times
Heavy rain at times
 15° /5° 4.5 mm 0 cm
24 May Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /6° 1.2 mm 0 cm
25 May Moderate rain at times
Moderate rain at times
 20° /6° 0.3 mm 0 cm
26 May Sunny
Sunny
 20° /7° 0 mm 0 cm
27 May Sunny
Sunny
 19° /8° 0.1 mm 0 cm
28 May Overcast
Overcast
 22° /6° 0 mm 0 cm
29 May Sunny
Sunny
 17° /9° 2 mm 0 cm
30 May Patchy rain possible
Patchy rain possible
 16° /4° 0.6 mm 0 cm
31 May Sunny
Sunny
 17° /5° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Fort St. John 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 Fort St. John forecast closer to your planned date for the most up-to-date weather information.
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Fort St. John in May - FAQ

What are the expected maximum and minimum temperatures in Fort St. John during May?

Enjoy moderate daytime temperatures of up to 16° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Fort St. John during May?

Moderate rainfall is anticipated in Fort St. John during May, with a total of 59.6 mm spread over approximately 7 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Fort St. John during May?

The average wind speed in Fort St. John during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

Fort St. John snow forecast May 2026

Track daily snowfall levels and discover Fort St. John’s snowy potential this May ❄️

May rainfall patterns in Fort St. John

Explore the daily rainfall trends and prepare for Fort St. Johns May weather 💧
Typically, Fort St. John has 7 rainy days in May with a total of 59.6 mm of rainfall.

UV exposure in Fort St. John during May

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

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Location coordinates Where is Fort St. John?

Get accurate weather forecasts for Fort St. John, located at latitude 56.25 and longitude -120.853. Stay updated with localized weather information tailored for Fort St. John.

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