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Thornton, CA Weather Forecast for 5-Days

Updated: Wed May 20th 2026 9:30 PM PDT

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Thornton, CA Weather – 5-20 – Sunny
91° / 58°
Sunny
In Thornton, it will be sunny with highs near 91°F and lows around 58°F. Wind will be moderate, blowing around 11mph on average and gusts of 14.1mph at 10 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 38% at 11 PM and 33% being its lowest at 10 PM. Barometric pressure is its highest of 29.82inHg at 10 PM, a lowest point of 29.82inHg at 10 PM with an avg 29.82inHg.
Thornton, CA Weather – 5-21 – Sunny
93° / 55°

Weather Tomorrow

Sunny
In Thornton, sunshine is likely with a high near 93°F and a low around 55°F. Wind will be moderate, blowing around 16mph on average and gusts of 26.1mph at 8 PM. Humidity levels should be comfortable, sitting around 39% on average, the maximum being 65% at 6 AM and 14% being its lowest at 4 PM. Barometric pressure is its highest of 29.86inHg at 8 AM, a lowest point of 29.7inHg at 5 PM with an avg 29.79inHg.
Thornton, CA Weather – 5-22 – Sunny
89° / 54°
Sunny
A sunny day is in the forecast for Thornton, with a high of 89°F and a low of 54°F. Wind will be moderate, blowing around 15mph on average and gusts of 21.3mph at 8 PM. Humidity levels should be comfortable, sitting around 42% on average, the maximum being 71% at 6 AM and 16% being its lowest at 6 PM. Barometric pressure is its highest of 29.79inHg at 10 PM, a lowest point of 29.69inHg at 5 PM with an avg 29.75inHg.
Thornton, CA Weather – 5-23 – Sunny
85° / 50°
Sunny
Thornton may see sunshine, with daytime highs of 85°F and overnight lows near 50°F. Wind will be moderate, blowing around 13mph on average and gusts of 19.1mph at 8 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 94% at 6 AM and 25% being its lowest at 2 PM. Barometric pressure is its highest of 29.92inHg at 11 PM, a lowest point of 29.8inHg at 2 AM with an avg 29.85inHg.
Thornton, CA Weather – 5-24 – Sunny
90° / 51°
Sunny
Daytime highs will reach 90°F with lows dropping to 51°F in Thornton, where bright and sunny conditions. Wind will be moderate, blowing around 13mph on average and gusts of 21.5mph at 8 PM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 85% at 5 AM and 18% being its lowest at 2 PM. Barometric pressure is its highest of 29.98inHg at 8 AM, a lowest point of 29.87inHg at 5 PM with an avg 29.93inHg.
Thornton, CA Weather – 5-25 – Sunny
93° / 54°
Sunny
Daytime highs will reach 93°F with lows dropping to 54°F in Thornton, where bright and sunny conditions. Wind will be moderate, blowing around 14mph on average and gusts of 20.7mph at 8 PM. Humidity levels should be comfortable, sitting around 43% on average, the maximum being 73% at 5 AM and 20% being its lowest at 2 PM. Barometric pressure is its highest of 29.97inHg at 8 AM, a lowest point of 29.8inHg at 5 PM with an avg 29.9inHg.

Currently

Clear 70°F
29.81 inHg.
Barometer
29%
Humidity
W 14 mph
Wind
Clear

5 Day Forecast Nearby

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