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San Bernardino County (Ontario)
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United States weather

10 day weather forecast for San Bernardino County

Sunday, September 14th, 2025, at 05:22 PM
today
Sunny
33° 18°
tomorrow
Sunny
37° 21°
Tuesday
Sunny
37° 23°
Wednesday
Partly cloudy
32° 22°
Thursday
Patchy rain possible
31° 22°
Friday
Sunny
32° 22°
Saturday
Sunny
32° 21°
 More Details See
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San Bernardino County Weather Pages

San Bernardino County weather forecast

The weather forecast for San Bernardino County over the next 5 days indicates hot conditions with temperatures ranging from 31 °F to 37 °F.

Light rain is expected on Thursday.

Wind speeds are expected to be breezy, averaging around 16 km/h.

Weather today
San Bernardino County weather forecast

San Bernardino County 14 days weather forecast

This weeks weather in San Bernardino County. Click on a date for detailed forecasts
Sun. 14
33°
18°
Sunny
0 mm
Mon. 15
37°
21°
Sunny
0 mm
Tue. 16
37°
23°
Sunny
0 mm
Wed. 17
32°
22°
Partly cloudy
0 mm
Thu. 18
31°
22°
Patchy rain possible
2.8 mm
Fri. 19
32°
22°
Sunny
0 mm
Sat. 20
32°
21°
Sunny
0 mm
Sun. 21
31°
21°
Sunny
0 mm
Mon. 22
30°
20°
Sunny
0 mm
Tue. 23
29°
19°
Sunny
0 mm
Wed. 24
30°
18°
Sunny
0 mm
Thu. 25
31°
19°
Overcast
0 mm
Fri. 26
30°
19°
Sunny
0 mm
Sat. 27
34°
20°
Sunny
0 mm
Further Ahead
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Access San Bernardino County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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San Bernardino County long range weather forecast

30 day weather forecast for San Bernardino County
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
34°
2
Light rain
33°
3
Light rain
31°
4
Sunny
33°
5
Partly cloudy
33°
6
Sunny
34°
7
Sunny
35°
8
Partly cloudy
35°
9
Sunny
34°
10
Overcast
30°
11
Partly cloudy
28°
12
Sunny
27°
13
Sunny
27°
14
Sunny
33°
15
Sunny
37°
16
Sunny
37°
17
Partly cloudy
32°
18
Patchy rain possible
31°
19
Sunny
32°
20
Sunny
32°
21
Sunny
31°
22
Sunny
30°
23
Sunny
29°
24
Sunny
30°
25
Overcast
31°
26
Sunny
30°
27
Sunny
34°
28
Sunny
30°
29
Sunny
30°
30
Light rain shower
27°
Important Notice
Our San Bernardino County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in San Bernardino County

The chart displays the expected rainfall values (in mm) over the next 14 days in San Bernardino County, highlighting variations in precipitation levels for specific dates. ☔

San Bernardino County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in San Bernardino County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

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Location coordinates Where is San Bernardino County?

Get accurate weather forecasts for San Bernardino County, located at latitude 34.063 and longitude -117.651. Stay updated with localized weather information tailored for San Bernardino County.

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