Susanville, CA Weather Tomorrow

Check tomorrow's weather in Susanville with a detailed 5 day forecast covering precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Susanville area and around Lassen county, California.
Updated: Thu Sep 3rd 2026 3:15 AM PDT
Susanville, CA Weather – 9-3 – Light Drizzle
55° / 44°
Light Drizzle
Susanville could see light Drizzle with daytime highs of 55°F and nighttime lows near 44°F. The chance of rain is 87% with an estimated 0.29in. Winds will be light at 8mph and gusts of 22.4mph at 12 PM. High humidity with average of 81% is anticipated, the maximum being 96% at 9 PM and 59% being its lowest at 9 AM. Barometric pressure is its highest of 29.92inHg at 4 AM, a lowest point of 29.81inHg at 5 PM with an avg 29.86inHg.
Susanville, CA Weather – 9-4 – Sunny
64° / 39°

Weather Tomorrow

Sunny
Daytime highs will reach 64°F with lows dropping to 39°F in Susanville, where it will be sunny. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 15mph on average and gusts of 17.5mph at 7 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 94% at 12 AM and 29% being its lowest at 4 PM. Barometric pressure is its highest of 29.98inHg at 11 PM, a lowest point of 29.79inHg at 4 PM with an avg 29.87inHg.
Susanville, CA Weather – 9-5 – Sunny
63° / 37°
Sunny
Bright and sunny conditions in Susanville, with a high of 63°F and a low of 37°F. There's a very small chance of rainfall, only about 6% with an estimated 0in. Wind will be moderate, blowing around 16mph on average and gusts of 25.3mph at 5 PM. The humidity will be on the higher side, averaging about 61%, the maximum being 86% at 6 AM and 35% being its lowest at 2 PM. Barometric pressure is its highest of 30.03inHg at 11 PM, a lowest point of 29.86inHg at 4 PM with an avg 29.96inHg.
Susanville, CA Weather – 9-6 – Sunny
69° / 38°
Sunny
Susanville could see a sunny day with daytime highs of 69°F and nighttime lows near 38°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 16mph on average and gusts of 21.5mph at 2 PM. Humidity levels should be comfortable, sitting around 52% on average, the maximum being 84% at 6 AM and 20% being its lowest at 3 PM. Barometric pressure is its highest of 30.05inHg at 1 AM, a lowest point of 29.79inHg at 4 PM with an avg 29.94inHg.
Susanville, CA Weather – 9-7 – Sunny
72° / 40°
Sunny
A sunny day is in the forecast for Susanville, with a high of 72°F and a low of 40°F. There's a very small chance of rainfall, only about 1%. Winds will be light at 7mph and gusts of 16.6mph at 12 AM. Humidity levels should be comfortable, sitting around 46% on average, the maximum being 82% at 6 AM and 17% being its lowest at 3 PM. Barometric pressure is its highest of 30.08inHg at 11 PM, a lowest point of 29.87inHg at 5 PM with an avg 30inHg.
Susanville, CA Weather – 9-8 – Overcast
73° / 44°
Overcast
Skies will be overcast in Susanville, with a high of 73°F and a low of 44°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 11mph on average and gusts of 17.7mph at 5 PM. Humidity levels should be comfortable, sitting around 34% on average, the maximum being 56% at 5 AM and 15% being its lowest at 3 PM. Barometric pressure is its highest of 30.09inHg at 5 AM, a lowest point of 29.91inHg at 5 PM with an avg 30.02inHg.

Currently

Patchy Rain Nearby 54°F
29.92 inHg.
Barometer
68%
Humidity
S 8.6 mph
Wind
Patchy Rain Nearby

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