Grass Valley (CA)
October
Weather in Grass Valley, California for October 2026
Your guide to Grass Valley weather in October - trends and predictions
In general, the average temperature in Grass Valley at the beginning of October is 26.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °F by the end of October.
Grass Valley experiences moderate rainfall in October, with an average of 7 rainy days and a total precipitation of 79 mm.
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Temperatures
Rain 🌧️
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24
Dry days
7
Rainy days
0
Snow days
25°/13°
Temperatures
12 km/h
Avg max wind
37 %
Avg humidity
Grass Valley Weather October
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Temperatures trend during October in Grass Valley
See the weather trend as well as the moving average line
October weather in Grass Valley day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Moderate rain at times | 16° /14° | 32.6 mm | 4 | |
| Oct. 2 | Moderate rain at times | 17° /13° | 3.8 mm | 4 | |
| Oct. 3 |  Sunny | 27° /16° | 1.5 mm | 7 | |
| Oct. 4 |  Cloudy | 28° /17° | 0 mm | 7 | |
| Oct. 5 | Sunny | 31° /16° | 0 mm | 8 | |
| Oct. 6 | Sunny | 33° /18° | 0 mm | 8 | |
| Oct. 7 |  Partly cloudy | 33° /18° | 0 mm | 9 | |
| Oct. 8 | Sunny | 32° /18° | 0 mm | 8 | |
| Oct. 9 | Partly cloudy | 26° /14° | 0 mm | 7 | |
| Oct. 10 | Cloudy | 26° /14° | 0 mm | 7 | |
| Oct. 11 | Sunny | 22° /12° | 0 mm | 6 | |
| Oct. 12 | Partly cloudy | 21° /12° | 0 mm | 6 | |
| Oct. 13 | Sunny | 20° /10° | 38.2 mm | 5 | |
| Oct. 14 | Sunny | 19° /10° | 3.8 mm | 5 | |
| Oct. 15 | Sunny | 20° /10° | 1.8 mm | 5 | |
| Oct. 16 | Moderate or heavy rain shower | 20° /9° | 4.5 mm | 5 | |
| Oct. 17 | Moderate or heavy rain shower | 21° /10° | 3.9 mm | 5 | |
| Oct. 18 | Sunny | 24° /10° | 0 mm | 6 | |
| Oct. 19 | Sunny | 25° /13° | 0 mm | 7 | |
| Oct. 20 | Cloudy | 24° /9° | 0 mm | 6 | |
| Oct. 21 | Partly cloudy | 25° /13° | 0 mm | 7 | |
| Oct. 22 |  Overcast | 22° /12° | 0 mm | 5 | |
| Oct. 23 | Sunny | 22° /10° | 0 mm | 6 | |
| Oct. 24 | Sunny | 21° /11° | 0 mm | 5 | |
| Oct. 25 | Overcast | 18° /11° | 11.1 mm | 4 | |
| Oct. 26 | Sunny | 18° /9° | 10.2 mm | 5 | |
| Oct. 27 | Moderate rain at times | 20° /10° | 2.1 mm | 5 | |
| Oct. 28 | Partly cloudy | 18° /9° | 0.3 mm | 5 | |
| Oct. 29 | Sunny | 22° /10° | 0 mm | 6 | |
| Oct. 30 | Overcast | 18° /11° | 0 mm | 5 | |
| Oct. 31 |  Light rain | 11° /6° | 21 mm | 3 | |
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Important Notice
Our weather forecast for Grass Valley in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grass Valley forecast closer to your planned date for the most up-to-date weather information.
Change Month
Grass Valley in October - FAQ
What are the expected maximum and minimum temperatures in Grass Valley during October?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grass Valley during October?
Moderate rainfall is anticipated in Grass Valley during October, with a total of 79 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Grass Valley during October?
The average wind speed in Grass Valley during October is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Grass Valley
Explore the daily rainfall trends and prepare for Grass Valleys October weather 💧
Typically, Grass Valley has 7 rainy days in October with a total of 79 mm of rainfall.
UV exposure in Grass Valley during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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