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San Bernardino County (Big Bear Lake)
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United States weather

Weather in San Bernardino County, California for October 2027

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

    Temperatures

  • In general, the average temperature in San Bernardino County at the beginning of October is 24.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.1 °C by the end of October.

    • Rain 🌧️

  • With an average of 3 rainy days, San Bernardino County experiences minimal rainfall in October.

    • More

  • Is October a good time to visit San Bernardino County? check out the best time to travel to San Bernardino County page.

  • ✨ Is October a good time to visit San Bernardino County? – Ask the AI Weatherman

Average dry days
28
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/11°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
38 %
Avg humidity

San Bernardino County Weather October

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

Temperatures trend during October in San Bernardino County

See the weather trend as well as the moving average line

October weather in San Bernardino County day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
Oct. 1 Sunny
Sunny
 25° /15° 0 mm 0 cm
Oct. 2 Sunny
Sunny
 25° /16° 0 mm 0 cm
Oct. 3 Sunny
Sunny
 23° /14° 0 mm 0 cm
Oct. 4 Partly cloudy
Partly cloudy
 24° /15° 0 mm 0 cm
Oct. 5 Overcast
Overcast
 23° /16° 0 mm 0 cm
Oct. 6 Sunny
Sunny
 24° /17° 0 mm 0 cm
Oct. 7 Partly cloudy
Partly cloudy
 25° /16° 0 mm 0 cm
Oct. 8 Sunny
Sunny
 24° /15° 0 mm 0 cm
Oct. 9 Light rain
Light rain
 23° /15° 4.3 mm 0 cm
Oct. 10 Light rain
Light rain
 21° /14° 6.3 mm 0 cm
Oct. 11 Moderate rain
Moderate rain
 17° /8° 15.5 mm 0 cm
Oct. 12 Light rain
Light rain
 14° /7° 4.2 mm 0 cm
Oct. 13 Sunny
Sunny
 15° /5° 0 mm 0 cm
Oct. 14 Light snow
Light snow
 14° /6° 13 mm 1 cm
Oct. 15 Sunny
Sunny
 15° /8° 0 mm 0 cm
Oct. 16 Partly cloudy
Partly cloudy
 18° /8° 0 mm 0 cm
Oct. 17 Sunny
Sunny
 16° /7° 0.2 mm 0 cm
Oct. 18 Sunny
Sunny
 14° /6° 0 mm 0 cm
Oct. 19 Sunny
Sunny
 17° /8° 0 mm 0 cm
Oct. 20 Sunny
Sunny
 18° /11° 0.9 mm 0 cm
Oct. 21 Sunny
Sunny
 19° /12° 0.6 mm 0 cm
Oct. 22 Light rain
Light rain
 15° /6° 7.5 mm 0 cm
Oct. 23 Patchy rain possible
Patchy rain possible
 16° /8° 1.6 mm 0 cm
Oct. 24 Cloudy
Cloudy
 18° /11° 0 mm 0 cm
Oct. 25 Cloudy
Cloudy
 18° /10° 0 mm 0 cm
Oct. 26 Overcast
Overcast
 18° /9° 0 mm 0 cm
Oct. 27 Overcast
Overcast
 18° /9° 0 mm 0 cm
Oct. 28 Partly cloudy
Partly cloudy
 15° /7° 0 mm 0 cm
Oct. 29 Partly cloudy
Partly cloudy
 14° /7° 0 mm 0 cm
Oct. 30 Cloudy
Cloudy
 14° /7° 0 mm 0 cm
Oct. 31 Patchy rain possible
Patchy rain possible
 15° /7° 1.5 mm 0 cm
Next
Important Notice
Our weather forecast for San Bernardino County in October 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 October - FAQ

What are the expected maximum and minimum temperatures in San Bernardino County during October?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in San Bernardino County during October?
Moderate rainfall is anticipated in San Bernardino County during October, with a total of 54.1 mm spread over approximately 3 days. Considering plans for rainy days is advisable.

Will it snow in San Bernardino County in October 2027?
San Bernardino County typically sees 1 cm of snowfall during October.

What are the typical wind conditions in San Bernardino County during October?
The average wind speed in San Bernardino County during October is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

San Bernardino County snow forecast October 2027

Track daily snowfall levels and discover San Bernardino County’s snowy potential this October ❄️

October rainfall patterns in San Bernardino County

Explore the daily rainfall trends and prepare for San Bernardino Countys October weather 💧
Typically, San Bernardino County has 3 rainy days in October with a total of 54.1 mm of rainfall.

UV exposure in San Bernardino County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Top locations in San Bernardino County
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Big Bear LakeFontanaOntarioRancho CucamongaSan BernardinoVictorville
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