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Current weather in Greenville is clear sky.

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

Now · 8:19 PM

Greenville Weather & Hourly Forecast

United States · New Hampshire · 03048

68°F

Clear night

Feels like: 68°F

💧 Humidity 85% 🌡 Pressure 30.27 inHg 💨 Wind 8 mph 👁 Visibility 21.3 mi ☁ Clouds 5% ☀️ UV index 1.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Greenville

Today

9:00 PM

Clear night

67° 💧 None 💨 8 mph H 89%30.27 inHg

Tomorrow

12:00 AM

Partly cloudy night

64° 💧 0.000 in 💨 6 mph H 96%30.27 inHg

3:00 AM

Overcast night

63° 💧 0.000 in 💨 4 mph H 95%30.24 inHg

6:00 AM

Fog at night

62° 💧 0.001 in 💨 3 mph H 96%30.24 inHg

9:00 AM

Mostly cloudy

69° 💧 0.000 in 💨 3 mph H 80%30.24 inHg

12:00 PM

Overcast

75° 💧 0.008 in 💨 3 mph H 69%30.21 inHg

3:00 PM

Light rain

76° 💧 0.192 in 💨 6 mph H 69%30.12 inHg

6:00 PM

Moderate rain

70° 💧 0.231 in 💨 2 mph H 99%30.09 inHg

9:00 PM

Moderate rain

68° 💧 0.658 in 💨 2 mph H 98%30.06 inHg

Friday

12:00 AM

Moderate rain

67° 💧 0.115 in 💨 6 mph H 99%30.03 inHg

3:00 AM

Overcast night

66° 💧 0.001 in 💨 6 mph H 99%29.97 inHg

6:00 AM

Mostly clear night

65° 💧 None 💨 8 mph H 98%30.00 inHg

9:00 AM

Mostly sunny

64° 💧 None 💨 9 mph H 90%30.06 inHg

12:00 PM

Sunny

71° 💧 None 💨 9 mph H 54%30.06 inHg

3:00 PM

Sunny

73° 💧 None 💨 10 mph H 45%30.03 inHg

6:00 PM

Sunny

66° 💧 None 💨 7 mph H 56%30.06 inHg

Today

9:00 PM

Clear night

67° 💧 None 💨 8 mph H 89%30.27 inHg

10:00 PM

Clear night

66° 💧 None 💨 8 mph H 91%30.27 inHg

11:00 PM

Mostly clear night

65° 💧 None 💨 6 mph H 93%30.27 inHg

Tomorrow

12:00 AM

Partly cloudy night

64° 💧 None 💨 6 mph H 96%30.27 inHg

1:00 AM

Mostly cloudy night

63° 💧 None 💨 5 mph H 96%30.27 inHg

2:00 AM

Mostly cloudy night

63° 💧 0.000 in 💨 4 mph H 96%30.27 inHg

3:00 AM

Overcast night

63° 💧 0.000 in 💨 4 mph H 95%30.24 inHg

4:00 AM

Overcast night

64° 💧 None 💨 4 mph H 92%30.24 inHg

5:00 AM

Mostly cloudy night

63° 💧 None 💨 4 mph H 93%30.24 inHg

6:00 AM

Fog at night

62° 💧 0.000 in 💨 3 mph H 96%30.24 inHg

7:00 AM

Fog

62° 💧 0.001 in 💨 3 mph H 95%30.24 inHg

8:00 AM

Partly cloudy

66° 💧 None 💨 3 mph H 87%30.24 inHg

9:00 AM

Mostly cloudy

69° 💧 0.000 in 💨 3 mph H 80%30.24 inHg

10:00 AM

Overcast

72° 💧 None 💨 2 mph H 74%30.24 inHg

11:00 AM

Mostly cloudy

73° 💧 None 💨 2 mph H 73%30.24 inHg

12:00 PM

Overcast

75° 💧 0.001 in 💨 3 mph H 69%30.21 inHg

1:00 PM

Mostly cloudy

75° 💧 0.003 in 💨 4 mph H 71%30.18 inHg

2:00 PM

Light rain

76° 💧 0.004 in 💨 6 mph H 68%30.15 inHg

3:00 PM

Light rain

76° 💧 0.006 in 💨 6 mph H 69%30.12 inHg

4:00 PM

Light rain

74° 💧 0.025 in 💨 3 mph H 82%30.12 inHg

5:00 PM

Moderate rain

70° 💧 0.161 in 💨 3 mph H 98%30.09 inHg

6:00 PM

Moderate rain

70° 💧 0.118 in 💨 2 mph H 99%30.09 inHg

7:00 PM

Light rain

69° 💧 0.055 in 💨 0 mph H 98%30.06 inHg

8:00 PM

Light rain

69° 💧 0.059 in 💨 0 mph H 98%30.06 inHg

9:00 PM

Moderate rain

68° 💧 0.107 in 💨 2 mph H 98%30.06 inHg

10:00 PM

Moderate rain

68° 💧 0.125 in 💨 5 mph H 98%30.06 inHg

11:00 PM

Heavy rain

67° 💧 0.426 in 💨 6 mph H 98%30.03 inHg

Friday

12:00 AM

Moderate rain

67° 💧 0.106 in 💨 6 mph H 99%30.03 inHg

1:00 AM

Light rain

66° 💧 0.005 in 💨 6 mph H 99%30.00 inHg

2:00 AM

Overcast night

66° 💧 0.003 in 💨 6 mph H 99%30.00 inHg

3:00 AM

Overcast night

66° 💧 0.001 in 💨 6 mph H 99%29.97 inHg

4:00 AM

Mostly clear night

66° 💧 None 💨 7 mph H 99%29.97 inHg

5:00 AM

Partly cloudy night

65° 💧 None 💨 8 mph H 99%30.00 inHg

6:00 AM

Mostly clear night

65° 💧 None 💨 8 mph H 98%30.00 inHg

7:00 AM

Mostly sunny

63° 💧 None 💨 9 mph H 98%30.00 inHg

8:00 AM

Mostly sunny

63° 💧 None 💨 9 mph H 97%30.03 inHg

9:00 AM

Mostly sunny

64° 💧 None 💨 9 mph H 90%30.06 inHg

10:00 AM

Sunny

65° 💧 None 💨 10 mph H 74%30.06 inHg

11:00 AM

Sunny

68° 💧 None 💨 10 mph H 61%30.06 inHg

12:00 PM

Sunny

71° 💧 None 💨 9 mph H 54%30.06 inHg

1:00 PM

Sunny

72° 💧 None 💨 9 mph H 51%30.03 inHg

2:00 PM

Sunny

73° 💧 None 💨 10 mph H 46%30.03 inHg

3:00 PM

Sunny

73° 💧 None 💨 10 mph H 45%30.03 inHg

4:00 PM

Sunny

72° 💧 None 💨 11 mph H 45%30.03 inHg

5:00 PM

Mostly sunny

70° 💧 None 💨 9 mph H 49%30.03 inHg

6:00 PM

Sunny

66° 💧 None 💨 7 mph H 56%30.06 inHg

7:00 PM

Mostly clear night

62° 💧 None 💨 8 mph H 58%30.09 inHg

8:00 PM

Mostly cloudy night

60° 💧 None 💨 8 mph H 54%30.12 inHg

9:00 PM

Mostly cloudy night

57° 💧 None 💨 8 mph H 58%30.12 inHg

10:00 PM

Overcast night

56° 💧 None 💨 8 mph H 62%30.15 inHg

11:00 PM

Overcast night

55° 💧 None 💨 7 mph H 64%30.15 inHg

Saturday

12:00 AM

Overcast night

54° 💧 None 💨 7 mph H 66%30.15 inHg

1:00 AM

Overcast night

53° 💧 None 💨 7 mph H 68%30.18 inHg

2:00 AM

Overcast night

52° 💧 None 💨 7 mph H 70%30.18 inHg

3:00 AM

Mostly cloudy night

52° 💧 None 💨 8 mph H 71%30.15 inHg

4:00 AM

Mostly cloudy night

50° 💧 None 💨 8 mph H 73%30.18 inHg

5:00 AM

Mostly cloudy night

49° 💧 None 💨 7 mph H 72%30.18 inHg

6:00 AM

Clear night

47° 💧 None 💨 5 mph H 74%30.18 inHg

7:00 AM

Sunny

46° 💧 None 💨 5 mph H 78%30.21 inHg

8:00 AM

Sunny

50° 💧 None 💨 5 mph H 70%30.21 inHg

11:00 AM

Mostly cloudy

59° 💧 None 💨 1 mph H 52%30.21 inHg

2:00 PM

Partly cloudy

64° 💧 None 💨 2 mph H 46%30.15 inHg

5:00 PM

Overcast

65° 💧 None 💨 3 mph H 48%30.12 inHg

8:00 PM

Overcast night

56° 💧 None 💨 5 mph H 73%30.12 inHg

11:00 PM

Mostly cloudy night

53° 💧 None 💨 5 mph H 85%30.15 inHg

Sunday

2:00 AM

Overcast night

51° 💧 None 💨 6 mph H 95%30.12 inHg

5:00 AM

Overcast night

53° 💧 None 💨 5 mph H 90%30.09 inHg

8:00 AM

Overcast

56° 💧 None 💨 5 mph H 86%30.09 inHg

11:00 AM

Light rain

58° 💧 None 💨 8 mph H 80%30.09 inHg

2:00 PM

Light rain

57° 💧 None 💨 6 mph H 81%30.03 inHg

5:00 PM

Overcast

57° 💧 None 💨 5 mph H 85%30.00 inHg

8:00 PM

Light rain

55° 💧 None 💨 5 mph H 93%30.03 inHg

11:00 PM

Light rain

54° 💧 None 💨 7 mph H 99%30.03 inHg

Monday

2:00 AM

Light rain

54° 💧 None 💨 6 mph H 100%30.03 inHg

5:00 AM

Overcast night

54° 💧 None 💨 7 mph H 99%30.03 inHg

8:00 AM

Mostly cloudy

55° 💧 None 💨 7 mph H 98%30.09 inHg

11:00 AM

Overcast

61° 💧 None 💨 9 mph H 78%30.12 inHg

2:00 PM

Overcast

66° 💧 None 💨 8 mph H 64%30.09 inHg

5:00 PM

Overcast

66° 💧 None 💨 7 mph H 62%30.09 inHg

8:00 PM

Overcast night

55° 💧 None 💨 4 mph H 93%30.15 inHg

11:00 PM

Overcast night

52° 💧 None 💨 7 mph H 97%30.21 inHg

Tuesday

2:00 AM

Overcast night

53° 💧 None 💨 8 mph H 71%30.24 inHg

5:00 AM

Overcast night

51° 💧 None 💨 9 mph H 68%30.27 inHg

8:00 AM

Overcast

51° 💧 None 💨 8 mph H 64%30.33 inHg

2:00 PM

Overcast

56° 💧 None 💨 9 mph H 59%30.33 inHg

8:00 PM

Overcast night

52° 💧 None 💨 8 mph H 71%30.36 inHg

Wednesday

2:00 AM

Overcast night

52° 💧 None 💨 9 mph H 78%30.36 inHg

8:00 AM

Overcast

52° 💧 None 💨 9 mph H 79%30.42 inHg

2:00 PM

Overcast

56° 💧 None 💨 13 mph H 75%30.45 inHg

8:00 PM

Partly cloudy night

52° 💧 None 💨 9 mph H 79%30.47 inHg

Thursday

2:00 AM

Mostly cloudy night

49° 💧 None 💨 9 mph H 81%30.45 inHg

8:00 AM

Overcast

51° 💧 None 💨 11 mph H 86%30.45 inHg

2:00 PM

Overcast

59° 💧 None 💨 14 mph H 67%30.39 inHg

8:00 PM

Overcast night

53° 💧 None 💨 9 mph H 85%30.33 inHg

Friday

2:00 AM

Light rain

52° 💧 None 💨 10 mph H 86%30.21 inHg

8:00 AM

Moderate rain

50° 💧 None 💨 12 mph H 99%30.12 inHg

2:00 PM

Light rain

55° 💧 None 💨 12 mph H 99%29.94 inHg

8:00 PM

Light rain

56° 💧 None 💨 10 mph H 100%29.80 inHg

Saturday

2:00 AM

Light rain

54° 💧 None 💨 12 mph H 98%29.65 inHg

8:00 AM

Partly cloudy

53° 💧 None 💨 13 mph H 91%29.68 inHg

2:00 PM

Mostly sunny

64° 💧 None 💨 16 mph H 46%29.74 inHg

8:00 PM

Mostly clear night

53° 💧 None 💨 11 mph H 68%29.91 inHg

Sunday

2:00 AM

Clear night

46° 💧 None 💨 9 mph H 70%30.00 inHg

8:00 AM

Sunny

48° 💧 None 💨 11 mph H 65%30.03 inHg

2:00 PM

Sunny

62° 💧 None 💨 12 mph H 39%30.03 inHg

8:00 PM

Clear night

49° 💧 None 💨 6 mph H 64%30.12 inHg

Monday

2:00 AM

Clear night

43° 💧 None 💨 5 mph H 83%30.21 inHg

8:00 AM

Sunny

47° 💧 None 💨 4 mph H 78%30.27 inHg

2:00 PM

Sunny

62° 💧 None 💨 5 mph H 40%30.24 inHg

8:00 PM

Clear night

49° 💧 None 💨 6 mph H 70%30.30 inHg

Tuesday

2:00 AM

Clear night

43° 💧 None 💨 6 mph H 77%30.42 inHg

8:00 AM

Sunny

45° 💧 None 💨 4 mph H 74%30.50 inHg

2:00 PM

Sunny

59° 💧 None 💨 3 mph H 45%30.47 inHg

8:00 PM

Clear night

47° 💧 None 💨 6 mph H 79%30.50 inHg

Wednesday

2:00 AM

Clear night

42° 💧 None 💨 1 mph H 81%30.50 inHg

8:00 AM

Sunny

45° 💧 None 💨 1 mph H 78%30.56 inHg

2:00 PM

Sunny

60° 💧 None 💨 5 mph H 51%30.50 inHg

8:00 PM

Clear night

47° 💧 None 💨 5 mph H 86%30.50 inHg

Thursday

2:00 AM

Clear night

42° 💧 None 💨 2 mph H 89%30.50 inHg

8:00 AM

Sunny

46° 💧 None 💨 1 mph H 88%30.53 inHg

In Greenville and, more broadly, across the state of New Hampshire: Tonight, expect mostly cloudy skies with mild temperatures ranging from 68 to 73 degrees Fahrenheit. Winds will be light, coming from the northwest at around 3 mph, with gusts reaching up to 6 mph. No rain is expected during the evening hours, so conditions should remain dry. Temperatures will gradually cool into the night, but will stay comfortably mild. Overall, it should be a calm and quiet evening with minimal wind activity. No significant weather changes are anticipated overnight, making for a relatively tranquil night ahead.

15-Day Weather Outlook for Greenville

TomorrowTomorrow

Partly cloudy 76°/62° 💧 None 💨 6 mph

Friday, Sep 18Fri Sep 18

Overcast 73°/55° 💧 None 💨 11 mph

Saturday, Sep 19Sat Sep 19

Overcast 65°/46° 💧 1.004 in 💨 8 mph

Sunday, Sep 20Sun Sep 20

Light rain 58°/51° 💧 0.115 in 💨 8 mph

Monday, Sep 21Mon Sep 21

Light rain 66°/52° 💧 0.048 in 💨 9 mph

Tuesday, Sep 22Tue Sep 22

Overcast 56°/51° 💧 0.026 in 💨 9 mph

Wednesday, Sep 23Wed Sep 23

Overcast 56°/52° 💧 0.008 in 💨 13 mph

Thursday, Sep 24Thu Sep 24

Overcast 59°/49° 💧 0.009 in 💨 14 mph

Friday, Sep 25Fri Sep 25

Moderate rain 56°/50° 💧 0.536 in 💨 12 mph

Saturday, Sep 26Sat Sep 26

Light rain 64°/53° 💧 0.726 in 💨 16 mph

Sunday, Sep 27Sun Sep 27

Sunny 62°/46° 💧 None 💨 12 mph

Monday, Sep 28Mon Sep 28

Sunny 62°/43° 💧 None 💨 6 mph

Tuesday, Sep 29Tue Sep 29

Sunny 59°/43° 💧 None 💨 6 mph

Wednesday, Sep 30Wed Sep 30

Sunny 60°/42° 💧 None 💨 5 mph

Thursday, Oct 1Thu Oct 1

Sunny 46°/42° 💧 None 💨 2 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Greenville

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Greenville

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 9:00 PM

PM2.5 Fine particles Fair 14,7µg/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 Fair 20,1µg/m³

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

O₃ Ozone Fair 99,2µg/m³

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

NO₂ Nitrogen dioxide Good 7,7µg/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 Greenville

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 6,0High 🙂Fair

Tomorrow UV 5,0Moderate 😐Moderate

Friday UV 6,0High 🙂Fair

Saturday UV 5,0Moderate 🙂Fair

Sunday UV 2,0Low 🙂Fair

Monday UV 3,0Moderate —Unavailable

Tuesday UV 3,0Moderate —Unavailable

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 Greenville

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · GREENVILLE, NEW HAMPSHIRE

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

97/100Best-hour score

BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 8:31 PM–4:53 AM

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

☾ Moonlight 27% Waxing Crescent · Moon about 3° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 15° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min30%

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.

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Forecast data for Greenville were last refreshed today at 8:19 PM. The current forecast period extends through 18/09/2026 at 6:00 PM. 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.