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San Bernardino County (Big Bear Lake)
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Weather in San Bernardino County, California for October 2026

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

    Snow Forecast ❄️

  • Snowfall in San Bernardino County during October is quite rare, with fewer than 2 snowy days on average.
    According to San Bernardino County snow forecast for October 2026, no snow is expected at the beginning of the month.

    • Temperatures

  • Expect cooler weather in first days of October 2026 in San Bernardino County with the forecast suggesting a temperature of 24.7 °F, lower than the historical average.

  • In general, the average temperature in San Bernardino County at the beginning of October is 25.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17 °F by the end of October.

    • Rain 🌧️

  • With an average of 2 rainy days, San Bernardino County experiences minimal rainfall in October.

    • More

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

Average dry days
28
Dry days
Average rainy days
2
Rainy days
Average snowy days
1
Snow days
Average temperatures
19°/11°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
35 %
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
28°
2
Sunny
29°
3
Sunny
28°
4
Sunny
20°
5
Overcast
23°
6
Cloudy
24°
7
Partly cloudy
25°
8
Sunny
24°
9
Sunny
23°
10
Sunny
23°
11
Sunny
20°
12
Sunny
19°
13
Sunny
18°
14
Sunny
13°
15
Sunny
16°
16
Partly cloudy
18°
17
Sunny
16°
18
Sunny
14°
19
Sunny
18°
20
Sunny
19°
21
Sunny
21°
22
Sunny
18°
23
Sunny
20°
24
Cloudy
21°
25
Cloudy
20°
26
Overcast
20°
27
Overcast
20°
28
Partly cloudy
15°
29
Partly cloudy
15°
30
Cloudy
17°
31
Sunny
12°

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
 28° /17° 0 mm 0 cm
Oct. 2 Sunny
Sunny
 29° /20° 0 mm 0 cm
Oct. 3 Sunny
Sunny
 28° /18° 0.1 mm 0 cm
Oct. 4 Sunny
Sunny
 20° /12° 0 mm 0 cm
Oct. 5 Overcast
Overcast
 23° /16° 0 mm 0 cm
Oct. 6 Cloudy
Cloudy
 24° /18° 0 mm 0 cm
Oct. 7 Partly cloudy
Partly cloudy
 25° /17° 0 mm 0 cm
Oct. 8 Sunny
Sunny
 24° /15° 0 mm 0 cm
Oct. 9 Sunny
Sunny
 23° /15° 6.5 mm 0 cm
Oct. 10 Sunny
Sunny
 23° /15° 6.9 mm 0 cm
Oct. 11 Sunny
Sunny
 20° /10° 0 mm 0 cm
Oct. 12 Sunny
Sunny
 19° /10° 0 mm 0 cm
Oct. 13 Sunny
Sunny
 18° /7° 0 mm 0 cm
Oct. 14 Sunny
Sunny
 13° /5° 19.5 mm 1.4 cm
Oct. 15 Sunny
Sunny
 16° /6° 0 mm 0 cm
Oct. 16 Partly cloudy
Partly cloudy
 18° /7° 0 mm 0 cm
Oct. 17 Sunny
Sunny
 16° /6° 0 mm 0 cm
Oct. 18 Sunny
Sunny
 14° /5° 0 mm 0 cm
Oct. 19 Sunny
Sunny
 18° /8° 0 mm 0 cm
Oct. 20 Sunny
Sunny
 19° /11° 0 mm 0 cm
Oct. 21 Sunny
Sunny
 21° /13° 0 mm 0 cm
Oct. 22 Sunny
Sunny
 18° /8° 0 mm 0 cm
Oct. 23 Sunny
Sunny
 20° /10° 0 mm 0 cm
Oct. 24 Cloudy
Cloudy
 21° /14° 0 mm 0 cm
Oct. 25 Cloudy
Cloudy
 20° /12° 0 mm 0 cm
Oct. 26 Overcast
Overcast
 20° /11° 0 mm 0 cm
Oct. 27 Overcast
Overcast
 20° /10° 0 mm 0 cm
Oct. 28 Partly cloudy
Partly cloudy
 15° /6° 0 mm 0 cm
Oct. 29 Partly cloudy
Partly cloudy
 15° /7° 0 mm 0 cm
Oct. 30 Cloudy
Cloudy
 17° /7° 0 mm 0 cm
Oct. 31 Sunny
Sunny
 12° /3° 0 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?
In October, San Bernardino County can expect light to moderate rainfall, totaling 32.9 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in San Bernardino County in October 2026?
San Bernardino County typically sees 1.4 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 11 km/h, suggesting breezy to windy conditions, depending on your activities.

San Bernardino County snow forecast October 2026

Track daily snowfall levels and discover San Bernardino County’s snowy potential this October ❄️
On average, San Bernardino County sees 1 snowy days during October, with approximately 1.4 cm of total snowfall.

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 2 rainy days in October with a total of 32.9 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 ☀️
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Location coordinates Where is San Bernardino County?

Get accurate weather forecasts for San Bernardino County, located at latitude 34.244 and longitude -116.911. Stay updated with localized weather information tailored for San Bernardino County.

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