Grass Valley Weather Conditions
Current Temperature Level
Grass Valley Weather Conditions
Current Temperature Level
Feels Like 13°C
Chances of Rain3%
15°3%5 AM15°3%6 AM15°3%7 AM
15°2%8 AM19°2%9 AM22°1%10 AM24°1%11 AM26°1%12 PM27°1%1 PM28°0%2 PM29°0%3 PM29°0%4 PM29°0%5 PM29°0%6 PM28°0%7 PM26°0%8 PM20°1%9 PM19°2%10 PM18°2%11 PM17°2%12 AM17°2%1 AM17°2%2 AM17°2%3 AM17°2%Skies are likely to remain clear overnight.
Last Updated: 2026-08-15 04:00 (Local Time)
69°ENE
Direction
8.6km/h
Wind Speed
Gust Speed
5.02m/s
Precipitation
Precipitation
0mm
Pressure
1017mb
UV Index
0Low
Today
21
°C
41%Sunday
23
°C33%Monday
23
°C29%Tuesday
25
°C18%Wednesday
26
°C15%Thursday
27
°C18%Friday
26
°C24%Saturday
27
°C22%Sunday
23
°C37%Monday
23
°C36%Sunny
Clear Sky with temperature at 21 °C and humidity will be at 41% with 15.1 km/h winds.29°C / 15°C
Humi.41 %
Prec.0 mm
Sunrise
06:17 AM13hrs 43min
Sunset
08:00 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
17 °C
58 %
0
9 kmph / ENE
Clear
Feels 14 °C
Cover 7 %
Visibility 10 km
1 AM
Clear
16 °C
60 %
0
9.4 kmph / ENE
ClearFeels 14 °C
Cover 1 %
Visibility 10 km
2 AM
Clear
16 °C
59 %
0
9.7 kmph / ENE
ClearFeels 13 °C
Cover 0 %
Visibility 10 km
3 AM
Clear
16 °C
54 %
0
9.4 kmph / ENE
ClearFeels 13 °C
Cover 0 %
Visibility 10 km
4 AM
Clear
15 °C
54 %
0
8.6 kmph / ENE
ClearFeels 13 °C
Cover 0 %
Visibility 10 km
5 AM
Clear
15 °C
54 %
0
7.9 kmph / ENE
ClearFeels 12 °C
Cover 0 %
Visibility 10 km
6 AM
Clear
15 °C
55 %
0
7.9 kmph / ENE
ClearFeels 12 °C
Cover 0 %
Visibility 10 km
7 AM
Sunny
15 °C
54 %
0.2
6.8 kmph / ENE
SunnyFeels 13 °C
Cover 0 %
Visibility 10 km
8 AM
Sunny
19 °C
48 %
0.8
1.4 kmph / SSE
SunnyFeels 19 °C
Cover 0 %
Visibility 10 km
9 AM
Sunny
22 °C
42 %
2.2
6.8 kmph / SW
SunnyFeels 21 °C
Cover 0 %
Visibility 10 km
10 AM
Sunny
24 °C
39 %
4.2
9 kmph / SW
SunnyFeels 22 °C
Cover 0 %
Visibility 10 km
11 AM
Sunny
26 °C
30 %
6.3
11.5 kmph / SW
SunnyFeels 23 °C
Cover 2 %
Visibility 10 km
12 PM
Sunny
27 °C
28 %
8
13.3 kmph / SW
SunnyFeels 24 °C
Cover 3 %
Visibility 10 km
1 PM
Sunny
28 °C
25 %
8.8
14.4 kmph / SW
SunnyFeels 24 °C
Cover 3 %
Visibility 10 km
2 PM
Sunny
29 °C
24 %
8.2
14.8 kmph / WSW
SunnyFeels 25 °C
Cover 2 %
Visibility 10 km
3 PM
Sunny
29 °C
22 %
6.7
15.1 kmph / WSW
SunnyFeels 25 °C
Cover 0 %
Visibility 10 km
4 PM
Sunny
29 °C
22 %
4.5
14 kmph / WSW
SunnyFeels 25 °C
Cover 0 %
Visibility 10 km
5 PM
Sunny
29 °C
21 %
2.4
12.6 kmph / SW
SunnyFeels 25 °C
Cover 0 %
Visibility 10 km
6 PM
Sunny
28 °C
23 %
0.9
12.6 kmph / SW
SunnyFeels 24 °C
Cover 0 %
Visibility 10 km
7 PM
Sunny
26 °C
28 %
0.2
10.4 kmph / WSW
SunnyFeels 23 °C
Cover 0 %
Visibility 10 km
8 PM
Clear
20 °C
43 %
0
2.5 kmph / SW
ClearFeels 19 °C
Cover 1 %
Visibility 10 km
9 PM
Clear
19 °C
47 %
0
7.6 kmph / ENE
ClearFeels 17 °C
Cover 2 %
Visibility 10 km
10 PM
Clear
18 °C
49 %
0
9.4 kmph / ENE
ClearFeels 15 °C
Cover 2 %
Visibility 10 km
11 PM
Clear
17 °C
49 %
0
9.4 kmph / ENE
ClearFeels 15 °C
Cover 3 %
Visibility 10 km
35°22°35°22°36°22°36°23°35°22°37°23°38°25°36°25°37°24°35°24°34°21°32°19°28°17°27°14°29°15°30°17°30°18°32°18°34°20°34°21°33°21°34°20°30°15°30°16°
30°16°31°16°31°16°31°16°30°16°30°16°30°15°AugustWeather Overview
No. of days:
Sunny
26
Cloudy
0
Rainy
5
Snowy
0
The monthly weather averages in Grass Valley consist of 26 sunny days, 0 cloudy days, 5 rainy days, and 0 snowy days.
Grass Valley's Locations Weather Conditions
United States's Hottest Cities - August 2026
1.
Park Village, California
31 °C
Clear
24%
0
3.6 kmph / E
2.
Key Biscayne, Florida
29 °C
Sunny
73%
0
22 kmph / SE
3.
El Centro, California
29 °C
Clear
35%
0
6.8 kmph / NW
4.
Chiriaco Summit, California
29 °C
Clear
41%
0
4.7 kmph / WSW
5.
Calexico, California
29 °C
Clear
49%
0
6.8 kmph / NNW
6.
Blythe, California
29 °C
Clear
46%
0
7.9 kmph / SSE
7.
Sun City, Arizona
29 °C
Clear
40%
0
9.4 kmph / WNW
8.
Guadalupe, Arizona
29 °C
Clear
37%
0
11.5 kmph / W
9.
Surprise, Arizona
29 °C
Clear
40%
0
9.4 kmph / WNW
10.
Indio, California
29 °C
Clear
36%
0
8.3 kmph / NW
Last Updated: 15 Aug 2026, 11:31 AM
City Weather RankingsFAQs About Grass Valley Weather Conditions
1. What is the current temperature in Grass Valley today - 15 August 2026?
1. What is the current temperature in Grass Valley today - 15 August 2026?
The current temperature in Grass Valley is 15°C, with a feels-like temperature of 13°C. Today's forecast shows a high of 29°C and a low of 15°C, giving a 14 degree swing through the day as of 04:00 AM 15 August 2026.
2. What are the current weather parameters in Grass Valley today?
2. What are the current weather parameters in Grass Valley today?
Here is a complete overview of Grass Valley's current weather conditions as of 04:00 AM 15 August 2026: Condition : Clear Temperature : 15°C Cool (Feels like 13°C) Humidity : 54% Wind Speed : 8.6 km/h from ENE (69 degrees), Gust 5 m/s UV Index : 0 (Low Air Pressure : 1017 mb Cloud Cover : 0% Visibility : 10 km Precipitation : 0 mm (1% chance of rain)
3. What is the 10-day weather forecast for Grass Valley from 04:00 AM 15 August 2026?
3. What is the 10-day weather forecast for Grass Valley from 04:00 AM 15 August 2026?
From 04:00 AM 15 August 2026, Grass Valley's 10-day forecast shows this trend: Today (Aug. 15) : Temp. 21°C, Hum. 41% and Sunny condition. Sunday (Aug. 16) : Temp. 23°C, Hum. 33% and Sunny condition. Monday (Aug. 17) : Temp. 23°C, Hum. 29% and Sunny condition. Tuesday (Aug. 18) : Temp. 25°C, Hum. 18% and Sunny condition. Wednesday (Aug. 19) : Temp. 26°C, Hum. 15% and Sunny condition. Thursday (Aug. 20) : Temp. 27°C, Hum. 18% and Sunny condition. Friday (Aug. 21) : Temp. 26°C, Hum. 24% and Sunny condition. Saturday (Aug. 22) : Temp. 27°C, Hum. 22% and Sunny condition. Sunday (Aug. 23) : Temp. 23°C, Hum. 37% and Sunny condition. Monday (Aug. 24) : Temp. 23°C, Hum. 36% and Rain Showers condition.
4. Will it rain in Grass Valley today?
4. Will it rain in Grass Valley today?
As of 04:00 AM 15 August 2026, there is a 3% chance of rainfall in Grass Valley later today around 2026-08-15 04:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.
5. What is the monthly weather forecast for Grass Valley in August 2026?
5. What is the monthly weather forecast for Grass Valley in August 2026?
August 2026 in Grass Valley is forecast to have 26 sunny days, 5 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 14°C to highs of 38°C.
6. How does the weather in Grass Valley affect air quality?
6. How does the weather in Grass Valley affect air quality?
Weather directly impacts air quality in Grass Valley. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.
