What is the weather in Grass Valley right now?

Current weather in Grass Valley is clear sky.

Where can I find the hourly weather forecast for Grass Valley?

This page shows hourly weather forecast for Grass Valley, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Grass Valley updated regularly?

Weather data for Grass Valley is updated regularly with the latest available observations and forecasts.

Now · 8:59 AM

Grass Valley Weather & Hourly Forecast

United States · Nevada · 89445

54°F

Sunny

Feels like: 50°F

💧 Humidity 50% 🌡 Pressure 30.15 inHg 💨 Wind 3 mph 👁 Visibility 26.5 mi ☁ Clouds 0% ☀️ UV index 0.7 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Grass Valley

Today

9:00 AM

Sunny

54° 💧 None 💨 3 mph H 50%30.15 inHg

12:00 PM

Sunny

64° 💧 None 💨 4 mph H 25%30.09 inHg

3:00 PM

Sunny

69° 💧 None 💨 4 mph H 18%30.00 inHg

6:00 PM

Sunny

68° 💧 None 💨 6 mph H 20%29.97 inHg

9:00 PM

Clear night

61° 💧 None 💨 4 mph H 24%30.03 inHg

Tomorrow

12:00 AM

Clear night

57° 💧 None 💨 0 mph H 31%30.06 inHg

3:00 AM

Clear night

54° 💧 None 💨 1 mph H 35%30.06 inHg

6:00 AM

Clear night

51° 💧 None 💨 0 mph H 39%30.12 inHg

9:00 AM

Sunny

60° 💧 None 💨 2 mph H 30%30.18 inHg

12:00 PM

Sunny

73° 💧 None 💨 4 mph H 21%30.12 inHg

3:00 PM

Sunny

78° 💧 None 💨 6 mph H 15%30.06 inHg

6:00 PM

Sunny

76° 💧 None 💨 7 mph H 13%30.06 inHg

9:00 PM

Clear night

67° 💧 None 💨 4 mph H 19%30.09 inHg

Wednesday

12:00 AM

Clear night

62° 💧 None 💨 1 mph H 22%30.15 inHg

3:00 AM

Mostly cloudy night

59° 💧 None 💨 0 mph H 26%30.15 inHg

6:00 AM

Mostly cloudy night

56° 💧 None 💨 0 mph H 30%30.18 inHg

Today

9:00 AM

Sunny

54° 💧 None 💨 3 mph H 50%30.15 inHg

10:00 AM

Sunny

58° 💧 None 💨 3 mph H 42%30.12 inHg

11:00 AM

Sunny

61° 💧 None 💨 2 mph H 32%30.12 inHg

12:00 PM

Sunny

64° 💧 None 💨 4 mph H 25%30.09 inHg

1:00 PM

Sunny

67° 💧 None 💨 4 mph H 21%30.06 inHg

2:00 PM

Sunny

68° 💧 None 💨 4 mph H 20%30.03 inHg

3:00 PM

Sunny

69° 💧 None 💨 4 mph H 18%30.00 inHg

4:00 PM

Sunny

70° 💧 None 💨 4 mph H 18%30.00 inHg

5:00 PM

Sunny

69° 💧 None 💨 5 mph H 19%29.97 inHg

6:00 PM

Sunny

68° 💧 None 💨 6 mph H 20%29.97 inHg

7:00 PM

Sunny

65° 💧 None 💨 7 mph H 21%30.00 inHg

8:00 PM

Clear night

63° 💧 None 💨 5 mph H 22%30.03 inHg

9:00 PM

Clear night

61° 💧 None 💨 4 mph H 24%30.03 inHg

10:00 PM

Clear night

59° 💧 None 💨 1 mph H 28%30.06 inHg

11:00 PM

Clear night

58° 💧 None 💨 1 mph H 30%30.03 inHg

Tomorrow

12:00 AM

Clear night

57° 💧 None 💨 0 mph H 31%30.06 inHg

1:00 AM

Clear night

56° 💧 None 💨 0 mph H 33%30.06 inHg

2:00 AM

Clear night

55° 💧 None 💨 1 mph H 34%30.06 inHg

3:00 AM

Clear night

54° 💧 None 💨 1 mph H 35%30.06 inHg

4:00 AM

Clear night

53° 💧 None 💨 0 mph H 37%30.09 inHg

5:00 AM

Clear night

52° 💧 None 💨 0 mph H 38%30.09 inHg

6:00 AM

Clear night

51° 💧 None 💨 0 mph H 39%30.12 inHg

7:00 AM

Sunny

52° 💧 None 💨 0 mph H 41%30.15 inHg

8:00 AM

Sunny

56° 💧 None 💨 1 mph H 34%30.15 inHg

9:00 AM

Sunny

60° 💧 None 💨 2 mph H 30%30.18 inHg

10:00 AM

Sunny

65° 💧 None 💨 2 mph H 27%30.15 inHg

11:00 AM

Mostly sunny

69° 💧 None 💨 3 mph H 24%30.15 inHg

12:00 PM

Sunny

73° 💧 None 💨 4 mph H 21%30.12 inHg

1:00 PM

Sunny

75° 💧 None 💨 6 mph H 18%30.09 inHg

2:00 PM

Sunny

77° 💧 None 💨 6 mph H 17%30.09 inHg

3:00 PM

Sunny

78° 💧 None 💨 6 mph H 15%30.06 inHg

4:00 PM

Sunny

78° 💧 None 💨 6 mph H 14%30.06 inHg

5:00 PM

Sunny

77° 💧 None 💨 7 mph H 13%30.06 inHg

6:00 PM

Sunny

76° 💧 None 💨 7 mph H 13%30.06 inHg

7:00 PM

Sunny

72° 💧 None 💨 5 mph H 15%30.06 inHg

8:00 PM

Clear night

69° 💧 None 💨 4 mph H 18%30.09 inHg

9:00 PM

Clear night

67° 💧 None 💨 4 mph H 19%30.09 inHg

10:00 PM

Clear night

65° 💧 None 💨 3 mph H 21%30.12 inHg

11:00 PM

Clear night

64° 💧 None 💨 1 mph H 21%30.12 inHg

Wednesday

12:00 AM

Clear night

62° 💧 None 💨 1 mph H 22%30.15 inHg

1:00 AM

Mostly cloudy night

61° 💧 None 💨 1 mph H 23%30.15 inHg

2:00 AM

Mostly cloudy night

60° 💧 None 💨 0 mph H 24%30.15 inHg

3:00 AM

Mostly cloudy night

59° 💧 None 💨 0 mph H 26%30.15 inHg

4:00 AM

Mostly cloudy night

58° 💧 None 💨 0 mph H 27%30.18 inHg

5:00 AM

Overcast night

57° 💧 None 💨 0 mph H 28%30.18 inHg

6:00 AM

Mostly cloudy night

56° 💧 None 💨 0 mph H 30%30.18 inHg

7:00 AM

Mostly cloudy

56° 💧 None 💨 0 mph H 31%30.21 inHg

8:00 AM

Mostly cloudy

61° 💧 None 💨 1 mph H 31%30.24 inHg

9:00 AM

Mostly cloudy

65° 💧 None 💨 1 mph H 23%30.24 inHg

10:00 AM

Overcast

69° 💧 None 💨 2 mph H 21%30.21 inHg

11:00 AM

Overcast

74° 💧 None 💨 2 mph H 18%30.21 inHg

12:00 PM

Overcast

77° 💧 None 💨 3 mph H 16%30.18 inHg

1:00 PM

Overcast

80° 💧 None 💨 4 mph H 14%30.15 inHg

2:00 PM

Overcast

81° 💧 None 💨 5 mph H 13%30.12 inHg

3:00 PM

Overcast

81° 💧 None 💨 4 mph H 12%30.12 inHg

4:00 PM

Overcast

82° 💧 None 💨 4 mph H 12%30.09 inHg

5:00 PM

Overcast

81° 💧 None 💨 4 mph H 11%30.06 inHg

Thursday

2:00 AM

Partly cloudy night

63° 💧 None 💨 1 mph H 21%30.09 inHg

5:00 AM

Partly cloudy night

60° 💧 None 💨 1 mph H 22%30.06 inHg

8:00 AM

Mostly cloudy

64° 💧 None 💨 3 mph H 20%30.06 inHg

11:00 AM

Mostly cloudy

81° 💧 None 💨 4 mph H 11%30.00 inHg

2:00 PM

Partly cloudy

87° 💧 None 💨 10 mph H 11%29.91 inHg

5:00 PM

Mostly sunny

86° 💧 None 💨 11 mph H 12%29.83 inHg

8:00 PM

Partly cloudy night

80° 💧 None 💨 10 mph H 15%29.83 inHg

11:00 PM

Mostly clear night

72° 💧 None 💨 3 mph H 22%29.88 inHg

Friday

2:00 AM

Mostly clear night

66° 💧 None 💨 2 mph H 26%29.91 inHg

5:00 AM

Clear night

62° 💧 None 💨 1 mph H 28%29.91 inHg

8:00 AM

Sunny

65° 💧 None 💨 1 mph H 25%29.94 inHg

11:00 AM

Sunny

76° 💧 None 💨 4 mph H 19%29.91 inHg

2:00 PM

Mostly sunny

82° 💧 None 💨 5 mph H 18%29.83 inHg

5:00 PM

Mostly sunny

82° 💧 None 💨 10 mph H 17%29.74 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 1 mph H 23%29.74 inHg

11:00 PM

Clear night

70° 💧 None 💨 6 mph H 25%29.77 inHg

Saturday

2:00 AM

Partly cloudy night

65° 💧 None 💨 0 mph H 33%29.80 inHg

5:00 AM

Mostly clear night

60° 💧 None 💨 1 mph H 38%29.83 inHg

8:00 AM

Sunny

63° 💧 None 💨 3 mph H 33%29.85 inHg

11:00 AM

Sunny

76° 💧 None 💨 9 mph H 18%29.83 inHg

2:00 PM

Sunny

81° 💧 None 💨 13 mph H 12%29.77 inHg

5:00 PM

Mostly sunny

80° 💧 None 💨 15 mph H 11%29.71 inHg

8:00 PM

Mostly cloudy night

72° 💧 None 💨 12 mph H 17%29.80 inHg

11:00 PM

Partly cloudy night

63° 💧 None 💨 6 mph H 16%29.91 inHg

Sunday

5:00 AM

Mostly cloudy night

66° 💧 None 💨 6 mph H 15%29.85 inHg

11:00 AM

Mostly sunny

51° 💧 None 💨 2 mph H 36%29.97 inHg

5:00 PM

Sunny

63° 💧 None 💨 6 mph H 24%30.03 inHg

11:00 PM

Clear night

67° 💧 None 💨 7 mph H 13%29.97 inHg

Monday

5:00 AM

Clear night

55° 💧 None 💨 3 mph H 27%30.12 inHg

11:00 AM

Sunny

45° 💧 None 💨 1 mph H 46%30.12 inHg

5:00 PM

Sunny

64° 💧 None 💨 1 mph H 19%30.09 inHg

11:00 PM

Clear night

75° 💧 None 💨 0 mph H 11%29.88 inHg

Tuesday

5:00 AM

Clear night

63° 💧 None 💨 0 mph H 18%29.91 inHg

11:00 AM

Sunny

56° 💧 None 💨 0 mph H 23%29.97 inHg

5:00 PM

Sunny

74° 💧 None 💨 2 mph H 12%29.97 inHg

11:00 PM

Clear night

82° 💧 None 💨 2 mph H 8%29.85 inHg

Wednesday

5:00 AM

Clear night

68° 💧 None 💨 1 mph H 14%29.91 inHg

11:00 AM

Sunny

61° 💧 None 💨 1 mph H 17%29.97 inHg

5:00 PM

Mostly cloudy

77° 💧 None 💨 2 mph H 12%30.00 inHg

11:00 PM

Mostly cloudy night

82° 💧 None 💨 3 mph H 10%29.85 inHg

Thursday

5:00 AM

Clear night

68° 💧 None 💨 1 mph H 19%29.94 inHg

11:00 AM

Mostly sunny

60° 💧 None 💨 0 mph H 27%30.03 inHg

5:00 PM

Sunny

75° 💧 None 💨 3 mph H 15%30.09 inHg

11:00 PM

Clear night

82° 💧 None 💨 4 mph H 16%29.97 inHg

Friday

5:00 AM

Clear night

69° 💧 None 💨 1 mph H 25%30.03 inHg

11:00 AM

Sunny

63° 💧 None 💨 1 mph H 33%30.03 inHg

5:00 PM

Sunny

80° 💧 None 💨 5 mph H 29%30.06 inHg

11:00 PM

Mostly clear night

81° 💧 None 💨 2 mph H 25%29.97 inHg

Saturday

5:00 AM

Clear night

69° 💧 None 💨 1 mph H 39%30.00 inHg

11:00 AM

Mostly sunny

61° 💧 None 💨 2 mph H 58%30.00 inHg

5:00 PM

Light rain

73° 💧 None 💨 3 mph H 39%30.06 inHg

11:00 PM

Mostly clear night

78° 💧 None 💨 5 mph H 26%29.91 inHg

Sunday

5:00 AM

Clear night

65° 💧 None 💨 2 mph H 48%29.94 inHg

11:00 AM

Sunny

60° 💧 None 💨 1 mph H 53%29.97 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 2 mph H 27%30.00 inHg

11:00 PM

Clear night

83° 💧 None 💨 6 mph H 14%29.88 inHg

Monday

5:00 AM

Clear night

68° 💧 None 💨 1 mph H 26%29.94 inHg

11:00 AM

Sunny

61° 💧 None 💨 1 mph H 36%29.97 inHg

5:00 PM

Sunny

81° 💧 None 💨 2 mph H 17%30.00 inHg

11:00 PM

Clear night

85° 💧 None 💨 5 mph H 12%29.88 inHg

In Grass Valley and, more broadly, across the state of Nevada: This morning, clear skies and mild temperatures are expected, with temperatures ranging from the mid-30s to the low 60s. Light west winds will blow at around 6 mph, with gusts reaching up to 10 mph. As the day progresses, the weather will remain dry, with skies staying clear and temperatures climbing into the upper 60s. Winds are expected to stay light, making for a pleasant afternoon. Overall, you can anticipate a calm and comfortable day with no precipitation.

15-Day Weather Outlook for Grass Valley

TomorrowTomorrow

Mostly sunny 78°/51° 💧 None 💨 7 mph

Wednesday, Sep 9Wed Sep 9

Mostly cloudy 82°/56° 💧 None 💨 7 mph

Thursday, Sep 10Thu Sep 10

Overcast 87°/60° 💧 None 💨 10 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 86°/62° 💧 None 💨 11 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 82°/60° 💧 None 💨 13 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 80°/51° 💧 0.000 in 💨 15 mph

Monday, Sep 14Mon Sep 14

Sunny 67°/45° 💧 None 💨 7 mph

Tuesday, Sep 15Tue Sep 15

Sunny 75°/56° 💧 0.000 in 💨 1 mph

Wednesday, Sep 16Wed Sep 16

Sunny 82°/61° 💧 None 💨 2 mph

Thursday, Sep 17Thu Sep 17

Mostly cloudy 82°/60° 💧 None 💨 3 mph

Friday, Sep 18Fri Sep 18

Sunny 82°/63° 💧 None 💨 4 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 81°/61° 💧 0.004 in 💨 5 mph

Sunday, Sep 20Sun Sep 20

Light rain 78°/60° 💧 0.016 in 💨 5 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 83°/61° 💧 None 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Sunny 85°/81° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Grass Valley

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Grass Valley

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 1,3µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,7µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 64,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,9µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Grass Valley

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,3High 🙂Fair

Tomorrow UV 7,5High 😐Moderate

Wednesday UV 7,7High 😐Moderate

Thursday UV 8,5Very high 🙂Fair

Friday UV 8,0Very high 😊Good

Saturday UV 7,0High —Unavailable

Sunday UV 6,0High —Unavailable

Hourly UV index today

9:00 AMUV 1,8 10:00 AMUV 3,6 11:00 AMUV 5,5 12:00 PMUV 6,9 1:00 PMUV 7,3 2:00 PMUV 6,6 3:00 PMUV 5,0 4:00 PMUV 3,0 5:00 PMUV 1,4 6:00 PMUV 0,4 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Grass Valley

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · GRASS VALLEY, NEVADA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 8:48 PM–4:50 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 69° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min79%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

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Forecast data for Grass Valley were last refreshed today at 8:59 AM. The current forecast period extends through 09/09/2026 at 6:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.