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Weather in Grass Valley, California for July 2026

Your guide to Grass Valley weather in July - trends and predictions

    Temperatures

  • Until now, July 2026 in Grass Valley has been nearly identical to the historical average, with a temperature of 32.5 °C (showing only a slight deviation of -0.4 °C).

  • The forecast for the upcoming days in Grass Valley predicts a temperature of 38.3 °C, which is slightly above the historical average.

  • In general, the average temperature in Grass Valley at the beginning of July is 31.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 38.9 °C by the end of July.

    • Rain 🌧️

  • Precipitation in Grass Valley during July is a rare event, with an average of fewer than 2 rainy days.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
31
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/19°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
36 %
Avg humidity

Grass Valley Weather July

Move between months or click on a day
June
August
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
32°
2
Sunny
32°
3
Overcast
30°
4
Sunny
30°
5
Sunny
30°
6
Sunny
32°
7
Sunny
32°
8
Sunny
31°
9
Sunny
33°
10
Sunny
36°
11
Sunny
36°
12
Sunny
35°
13
Sunny
34°
14
Sunny
37°
15
Sunny
35°
16
Sunny
32°
17
Sunny
32°
18
Sunny
33°
19
Sunny
34°
20
Sunny
36°
21
Partly cloudy
36°
22
Sunny
37°
23
Sunny
36°
24
Sunny
36°
25
Sunny
36°
26
Sunny
37°
27
Sunny
38°
28
Sunny
39°
29
Sunny
40°
30
Sunny
40°
31
Sunny
42°

Temperatures trend during July in Grass Valley

See the weather trend as well as the moving average line

July weather in Grass Valley day by day

Click on a date for more information
June August
Date Weather Temperatures Rain UV More
Jul. 1 Sunny
Sunny
 32° /18° 0 mm 11
Jul. 2 Sunny
Sunny
 32° /18° 0 mm 11
Jul. 3 Overcast
Overcast
 30° /18° 0 mm 10
Jul. 4 Sunny
Sunny
 30° /17° 0 mm 10
Jul. 5 Sunny
Sunny
 30° /16° 0 mm 10
Jul. 6 Sunny
Sunny
 32° /17° 0 mm 11
Jul. 7 Sunny
Sunny
 32° /18° 0 mm 11
Jul. 8 Sunny
Sunny
 31° /16° 0 mm 11
Jul. 9 Sunny
Sunny
 33° /18° 0 mm 11
Jul. 10 Sunny
Sunny
 36° /20° 0 mm 11
Jul. 11 Sunny
Sunny
 36° /22° 0 mm 11
Jul. 12 Sunny
Sunny
 35° /23° 0.1 mm 11
Jul. 13 Sunny
Sunny
 34° /22° 0 mm 11
Jul. 14 Sunny
Sunny
 37° /23° 0 mm 11
Jul. 15 Sunny
Sunny
 35° /21° 0 mm 10
Jul. 16 Sunny
Sunny
 32° /19° 0 mm 10
Jul. 17 Sunny
Sunny
 32° /18° 0 mm 10
Jul. 18 Sunny
Sunny
 33° /18° 0 mm 10
Jul. 19 Sunny
Sunny
 34° /19° 0.2 mm 10
Jul. 20 Sunny
Sunny
 36° /21° 0 mm 11.1
Jul. 21 Partly cloudy
Partly cloudy
 36° /19° 0.3 mm 10.9
Jul. 22 Sunny
Sunny
 37° /23° 0 mm 10.7
Jul. 23 Sunny
Sunny
 36° /21° 0 mm 11
Jul. 24 Sunny
Sunny
 36° /20° 0 mm 9
Jul. 25 Sunny
Sunny
 36° /20° 0 mm 9
Jul. 26 Sunny
Sunny
 37° /18° 0 mm 9
Jul. 27 Sunny
Sunny
 38° /20° 0 mm 9
Jul. 28 Sunny
Sunny
 39° /21° 0 mm 9
Jul. 29 Sunny
Sunny
 40° /23° 0 mm 10
Jul. 30 Sunny
Sunny
 40° /23° 0 mm 10
Jul. 31 Sunny
Sunny
 42° /24° 0 mm 10
Next
Important Notice
Our weather forecast for Grass Valley in July 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.
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Grass Valley in July - FAQ

What are the expected maximum and minimum temperatures in Grass Valley during July?
Expect warm days with temperatures around 31°, cooling to mild conditions of 19° after sunset. Perfect for those who enjoy warm weather.

How much rainfall should be expected in Grass Valley during July?
Rainfall in Grass Valley during July is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

What are the typical wind conditions in Grass Valley during July?
The average wind speed in Grass Valley during July is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

UV exposure in Grass Valley during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️

Quick links

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Location coordinates Where is Grass Valley?

Get accurate weather forecasts for Grass Valley, located at latitude 39.219 and longitude -121.061. Stay updated with localized weather information tailored for Grass Valley.

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