San Bernardino County, CA Weather Tomorrow

From tomorrow through the next 5 days, stay updated on San Bernardino County weather with daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the San Bernardino County area.
Updated: Fri Sep 11th 2026 1:15 AM PDT
San Bernardino County, CA Weather – 9-11 – Sunny
92° / 82°
Sunny
San Bernardino County could see sunshine with daytime highs of 92°F and nighttime lows near 82°F. Winds will be light at 10mph and gusts of 12.8mph at 10 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 30% at 10 PM and 21% being its lowest at 11 AM. Barometric pressure is its highest of 29.82inHg at 8 AM, a lowest point of 29.69inHg at 5 PM with an avg 29.76inHg.
San Bernardino County, CA Weather – 9-12 – Sunny
89° / 76°

Weather Tomorrow

Sunny
It will be sunny in San Bernardino County, with a high of 89°F and a low of 76°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 12mph on average and gusts of 18.6mph at 6 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 40% at 9 AM and 14% being its lowest at 7 PM. Barometric pressure is its highest of 29.84inHg at 11 AM, a lowest point of 29.7inHg at 5 PM with an avg 29.76inHg.
San Bernardino County, CA Weather – 9-13 – Sunny
85° / 73°
Sunny
A sunny day is in the forecast for San Bernardino County, with a high of 85°F and a low of 73°F. There's a very small chance of rainfall, only about 1%. Winds will be light at 10mph and gusts of 13.9mph at 6 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 24% at 7 AM and 10% being its lowest at 5 PM. Barometric pressure is its highest of 29.79inHg at 8 AM, a lowest point of 29.66inHg at 6 PM with an avg 29.74inHg.
San Bernardino County, CA Weather – 9-14 – Sunny
89° / 71°
Sunny
Daytime highs will reach 89°F with lows dropping to 71°F in San Bernardino County, where bright and sunny conditions. There's a very small chance of rainfall, only about 1%. Winds will be light at 9mph and gusts of 17.2mph at 1 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 28% at 6 AM and 15% being its lowest at 3 PM. Barometric pressure is its highest of 29.81inHg at 10 AM, a lowest point of 29.67inHg at 8 PM with an avg 29.74inHg.
San Bernardino County, CA Weather – 9-15 – Sunny
84° / 71°
Sunny
In San Bernardino County, bright and sunny conditions with highs near 84°F and lows around 71°F. Wind will be moderate, blowing around 15mph on average and gusts of 17.4mph at 8 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 40% at 8 AM and 22% being its lowest at 12 AM. Barometric pressure is its highest of 29.88inHg at 10 AM, a lowest point of 29.74inHg at 12 AM with an avg 29.8inHg.
San Bernardino County, CA Weather – 9-16 – Sunny
85° / 72°
Sunny
Daytime highs will reach 85°F with lows dropping to 72°F in San Bernardino County, where it will be sunny. Wind will be moderate, blowing around 13mph on average and gusts of 13.3mph at 2 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 30% at 5 AM and 17% being its lowest at 5 PM. Barometric pressure is its highest of 29.98inHg at 11 AM, a lowest point of 29.84inHg at 12 AM with an avg 29.92inHg.

Currently

Clear 89°F
29.79 inHg.
Barometer
25%
Humidity
N 9 mph
Wind
Clear

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