San Bernardino County, CA Weather Forecast
County weather hub
Sunny
Compare major city weather across San Bernardino County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 95.
County Weather Overview
This county weather page brings together forecast coverage for San Bernardino County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 27 of 27 mapped cities in San Bernardino County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 25 to May 27, 2026
- Latest sync
- May 21, 2026 2:26 PM PDT
- Forecast office
- VEF
- Source
- NOAA / NWS
Daily Outlook
This Week in San Bernardino County
Memorial Day looks like the warmest upcoming period in San Bernardino County at 95 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Monday Night at about 2 to 23 mph W.
The forecast from May 25 through May 27 stays mostly dry.
Forecast Details
- Last updated
- May 21, 2026 2:26 PM PDT
- Coverage
- 4 days
- Time zone
- America/Los_Angeles
- Forecast office
- VEF
- Radar station
- KEYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 65.
Sunny, with a high near 93.
Clear, with a low around 61.
Sunny, with a high near 88.
Clear, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Sunny
|
95°F |
2 to 7 mph
W
|
|
Monday Night
May 25
|
Clear
|
65°F |
2 to 23 mph
W
|
|
Tuesday
May 26
|
Sunny
|
93°F |
1 to 16 mph
WSW
|
|
Tuesday Night
May 26
|
Clear
|
61°F |
7 to 21 mph
W
|
|
Wednesday
May 27
|
Sunny
|
88°F |
5 to 8 mph
W
|
|
Wednesday Night
May 27
|
Clear
|
61°F |
5 to 10 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across San Bernardino County.
Coverage
Forecast coverage currently spans 27 of 27 mapped cities in San Bernardino County.
Largest mapped city population in this region: 217,491.
