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San Bernardino County (San Bernardino)
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United States weather

Weather in San Bernardino County, California for June 2026

Your guide to San Bernardino County weather in June - trends and predictions

    Official Weather Alert ⚠️

  • Beach Hazards Statement - See hour by hour.

    • Temperatures

  • So far, June 2026 in San Bernardino County shows a warmer trend than usual by 2.9 °F.

  • The forecast for the upcoming days in San Bernardino County predicts a temperature of 34.4 °F, which is slightly above the historical average.

  • In general, the average temperature in San Bernardino County at the beginning of June is 29.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 33.1 °F by the end of June.

    • Rain 🌧️

  • Precipitation in San Bernardino County during June is a rare event, with an average of fewer than 2 rainy days.

    • More

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

Average dry days
29
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/15°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
46 %
Avg humidity

San Bernardino County Weather June

Move between months or click on a day
May
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
28°
2
Sunny
28°
3
Sunny
30°
4
Sunny
31°
5
Partly cloudy
30°
6
Sunny
29°
7
Sunny
29°
8
Sunny
30°
9
Sunny
30°
10
Sunny
31°
11
Sunny
30°
12
Sunny
31°
13
Sunny
32°
14
Sunny
32°
15
Sunny
33°
16
Sunny
32°
17
Sunny
31°
18
Sunny
31°
19
Sunny
30°
20
Weather Alert Sunny
32°
21
Sunny
30°
22
Sunny
33°
23
Sunny
35°
24
Sunny
36°
25
Sunny
34°
26
Sunny
33°
27
Sunny
30°
28
Sunny
31°
29
Sunny
33°
30
Sunny
35°

Temperatures trend during June in San Bernardino County

See the weather trend as well as the moving average line

June weather in San Bernardino County day by day

Click on a date for more information
May July
Date Weather Temperatures Rain UV More
Jun. 1 Sunny
Sunny
 28° /13° 0.1 mm 8
Jun. 2 Sunny
Sunny
 28° /14° 0.1 mm 9
Jun. 3 Sunny
Sunny
 30° /13° 0 mm 9
Jun. 4 Sunny
Sunny
 31° /14° 0.7 mm 9
Jun. 5 Partly cloudy
Partly cloudy
 30° /13° 0 mm 9
Jun. 6 Sunny
Sunny
 29° /14° 0.2 mm 9
Jun. 7 Sunny
Sunny
 29° /14° 0.1 mm 9
Jun. 8 Sunny
Sunny
 30° /15° 0 mm 9
Jun. 9 Sunny
Sunny
 30° /14° 0 mm 9
Jun. 10 Sunny
Sunny
 31° /14° 0 mm 9
Jun. 11 Sunny
Sunny
 30° /16° 0.9 mm 8
Jun. 12 Sunny
Sunny
 31° /17° 0.6 mm 8
Jun. 13 Sunny
Sunny
 32° /17° 0 mm 9
Jun. 14 Sunny
Sunny
 32° /15° 0 mm 9
Jun. 15 Sunny
Sunny
 33° /16° 0.1 mm 9
Jun. 16 Sunny
Sunny
 32° /16° 0 mm 9
Jun. 17 Sunny
Sunny
 31° /15° 0 mm 9
Jun. 18 Sunny
Sunny
 31° /15° 0 mm 9
Jun. 19 Sunny
Sunny
 30° /15° 0 mm 9
Jun. 20 Sunny
Sunny
 32° /13° 0 mm 11.8
Jun. 21 Sunny
Sunny
 30° /10° 0 mm 12
Jun. 22 Sunny
Sunny
 33° /12° 0 mm 11.8
Jun. 23 Sunny
Sunny
 35° /15° 0 mm 11.9
Jun. 24 Sunny
Sunny
 36° /17° 0 mm 0
Jun. 25 Sunny
Sunny
 34° /16° 0 mm 6
Jun. 26 Sunny
Sunny
 33° /15° 0 mm 6
Jun. 27 Sunny
Sunny
 30° /13° 0 mm 6
Jun. 28 Sunny
Sunny
 31° /12° 0 mm 6
Jun. 29 Sunny
Sunny
 33° /13° 0 mm 6
Jun. 30 Sunny
Sunny
 35° /16° 0 mm 7
Next
Important Notice
Our weather forecast for San Bernardino County in June 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 San Bernardino County forecast closer to your planned date for the most up-to-date weather information.
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San Bernardino County in June - FAQ

What are the expected maximum and minimum temperatures in San Bernardino County during June?

Expect warm days with temperatures around 30°, cooling to mild conditions of 15° after sunset. Perfect for those who enjoy warm weather.

How much rainfall should be expected in San Bernardino County during June?

Rainfall in San Bernardino County during June is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

What are the typical wind conditions in San Bernardino County during June?

The average wind speed in San Bernardino County during June is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

UV exposure in San Bernardino County during June

Stay informed about UV levels for safe outdoor activities throughout the month of June ☀️
Top locations in San Bernardino County
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Big Bear LakeFontanaOntarioRancho CucamongaSan Bernardino
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Location coordinates Where is San Bernardino County?

Get accurate weather forecasts for San Bernardino County, located at latitude 34.108 and longitude -117.29. Stay updated with localized weather information tailored for San Bernardino County.

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