Weather forecast for todayGrass Valley, CA

Weather forecast for today

Current condition 12:24 am PDT

  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 1mphENE 60°
  • Humidity: 31%
  • Dewpoint: 25°F
  • Pressure: 29.98"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Grass Valley, currently, a perfect day unfolds under completely clear skies.
The temperature is a moderate 55.4°F. The present temperature is at its lowest of the day.

Sunday Oct 18, 2026

  • 81°F
  • 55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 174°
  • Humidity: 20%
  • UV index: 5
  • Sunrise: 7:17 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
On Sunday, October 18, sunshine and minimal clouds are in the outlook.
Temperature is predicted to swing from a high of a temperate 80.6°F to a low of a moderate 55.4°F.
Temperatures are higher than average, more in line with September's norm of 83.8°F than with October's 72°F.
Sunrise will be at 7:17 am and sunset at 6:21 pm; the daylight will last for 11h and 4min.

Hourly overview

Hourly temperatures

Warmest period: 1 pm - 4 pm 79°C.
Coldest hour: 1 am 59°C.

Chance of precipitation

Highest chance: 1 am - 10 pm 0%.

Hourly weather forecast

  • 2 am
  • 61°F
  • Feels like:
    61°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 86°
  • Humidity: 26%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphE 95°
  • Humidity: 22%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphE 97°
  • Humidity: 22%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:17 am
  • 8 am
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphESE 105°
  • Humidity: 24%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 147°
  • Humidity: 20%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 77°F
  • Feels like:
    77°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 186°
  • Humidity: 17%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 79°F
  • Feels like:
    79°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSW 209°
  • Humidity: 17%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 79°F
  • Feels like:
    79°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSW 211°
  • Humidity: 18%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 195°
  • Humidity: 22%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:21 pm
  • 8 pm
  • 66°F
  • Feels like:
    66°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 128°
  • Humidity: 32%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSE 134°
  • Humidity: 34%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Grass Valley, a cloudless sky and mainly sunshiny weather are expected.
The temperature will vary between a minimum of 59°F and a maximum of 78.8°F. The warmest part of the day will be from 1 pm to 4 pm.
The maximum temperature will align more closely with September's average high of 83.8°F than with October's 72°F. Today, expect the temperature to dip to a level moderately higher than the average October low.
Updated: Oct 18, 2026 @ 07:24:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (12:24 am PDT) is 55.4°F.

On Sunday, sunshine is forecasted under mostly clear skies.

Today, the highest temperature will be 80.6°F, while the lowest temperature will be 55.4°F.
Today, the highest temperature will be a few degrees higher than the average maximum temperature in October. The lowest temperature today will be also slightly warmer than the average low temperature.

On Sunday, in Grass Valley, sunrise will be at 7:17 am and sunset at 6:21 pm (PDT).

In Grass Valley, the length of the day today will be 11h and 4min.