Barstow Fwy I15, CA Weather Forecast for 5-Days

Updated: Tue Nov 11th 2025 12:15 AM PST

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Barstow Fwy I15, CA Weather – 11-11 – Partly Cloudy
81° / 55°
Partly Cloudy
It will be cloudy in Barstow Fwy I15, with a high of 81°F and a low of 55°F. Winds will be light at 4mph and gusts of 6.5mph at 11 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 44% at 7 AM and 15% being its lowest at 3 PM. Barometric pressure is its highest of 30.19inHg at 9 AM, a lowest point of 29.98inHg at 5 PM with an avg 30.09inHg.
Barstow Fwy I15, CA Weather – 11-12 – Partly Cloudy
78° / 59°
Partly Cloudy
Daytime highs will reach 78°F with lows dropping to 59°F in Barstow Fwy I15, where skies will be cloudy. Winds will be light at 4mph and gusts of 7mph at 3 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 39% at 5 AM and 16% being its lowest at 2 PM. Barometric pressure is its highest of 30.05inHg at 6 AM, a lowest point of 29.89inHg at 5 PM with an avg 29.99inHg.
Barstow Fwy I15, CA Weather – 11-13 – Partly Cloudy
76° / 58°
Partly Cloudy
Skies will be cloudy in Barstow Fwy I15, with a high of 76°F and a low of 58°F. Winds will be light at 8mph and gusts of 10.9mph at 7 PM. Humidity levels should be comfortable, sitting around 38% on average, the maximum being 48% at 8 AM and 27% being its lowest at 6 PM. Barometric pressure is its highest of 29.97inHg at 7 AM, a lowest point of 29.79inHg at 5 PM with an avg 29.89inHg.
Barstow Fwy I15, CA Weather – 11-14 – Scattered Showers
59° / 48°
Scattered Showers
Passing showers are in the forecast for Barstow Fwy I15, with a high of 59°F and a low of 48°F. The chance of rain is 89% with an estimated 0.06in. Winds will be strong at speeds peaking at 30mph and gusts of 40.4mph at 4 PM. Humidity levels should be comfortable, sitting around 52% on average, the maximum being 68% at 8 AM and 38% being its lowest at 1 PM. Barometric pressure is its highest of 29.82inHg at 10 PM, a lowest point of 29.72inHg at 4 PM with an avg 29.78inHg.
Barstow Fwy I15, CA Weather – 11-15 – Sunny
60° / 46°
Sunny
Barstow Fwy I15 is set for a sunny day with temperatures peaking at 60°F and dipping to 46°F. Wind will be moderate, blowing around 15mph on average and gusts of 24mph at 12 AM. Humidity levels should be comfortable, sitting around 46% on average, the maximum being 59% at 8 AM and 27% being its lowest at 5 PM. Barometric pressure is its highest of 29.92inHg at 11 AM, a lowest point of 29.83inHg at 12 AM with an avg 29.88inHg.
Barstow Fwy I15, CA Weather – 11-16 – Sunny
65° / 55°
Sunny
In Barstow Fwy I15, sunshine is likely with a high near 65°F and a low around 55°F. Winds will be light at 5mph and gusts of 8.9mph at 12 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 37% at 8 AM and 19% being its lowest at 2 PM. Barometric pressure is its highest of 29.96inHg at 9 AM, a lowest point of 29.86inHg at 5 PM with an avg 29.91inHg.

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