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Current weather in Marietta is clear sky.

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Is the weather forecast for Marietta updated regularly?

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

Now · 12:06 PM

Marietta Weather & Hourly Forecast

United States · Pennsylvania · 17547

80°F

Sunny

Feels like: 80°F

💧 Humidity 40% 🌡 Pressure 30.24 inHg 💨 Wind 2 mph 👁 Visibility 28.6 mi ☁ Clouds 0% ☀️ UV index 6.2 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Marietta

Today

1:00 PM

Sunny

82° 💧 None 💨 2 mph H 38%30.24 inHg

4:00 PM

Mostly cloudy

85° 💧 None 💨 0 mph H 36%30.18 inHg

7:00 PM

Partly cloudy

80° 💧 None 💨 3 mph H 45%30.18 inHg

10:00 PM

Mostly cloudy night

73° 💧 None 💨 5 mph H 69%30.21 inHg

Tomorrow

1:00 AM

Partly cloudy night

70° 💧 None 💨 4 mph H 82%30.21 inHg

4:00 AM

Mostly cloudy night

69° 💧 None 💨 5 mph H 75%30.18 inHg

7:00 AM

Mostly cloudy

67° 💧 None 💨 4 mph H 74%30.21 inHg

10:00 AM

Partly cloudy

78° 💧 None 💨 6 mph H 52%30.18 inHg

1:00 PM

Partly cloudy

87° 💧 None 💨 10 mph H 37%30.15 inHg

4:00 PM

Partly cloudy

89° 💧 None 💨 11 mph H 39%30.03 inHg

7:00 PM

Sunny

84° 💧 None 💨 7 mph H 48%30.00 inHg

10:00 PM

Clear night

79° 💧 None 💨 11 mph H 54%30.00 inHg

Thursday

1:00 AM

Clear night

76° 💧 None 💨 11 mph H 57%29.97 inHg

4:00 AM

Mostly clear night

74° 💧 None 💨 10 mph H 56%29.94 inHg

7:00 AM

Mostly sunny

73° 💧 0.059 in 💨 9 mph H 59%29.94 inHg

10:00 AM

Light rain

71° 💧 0.106 in 💨 10 mph H 95%29.94 inHg

Today

1:00 PM

Sunny

82° 💧 None 💨 2 mph H 38%30.24 inHg

2:00 PM

Partly cloudy

84° 💧 None 💨 2 mph H 37%30.21 inHg

3:00 PM

Mostly cloudy

84° 💧 None 💨 1 mph H 36%30.21 inHg

4:00 PM

Mostly cloudy

85° 💧 None 💨 0 mph H 36%30.18 inHg

5:00 PM

Mostly cloudy

84° 💧 None 💨 1 mph H 37%30.18 inHg

6:00 PM

Mostly sunny

83° 💧 None 💨 3 mph H 39%30.18 inHg

7:00 PM

Partly cloudy

80° 💧 None 💨 3 mph H 45%30.18 inHg

8:00 PM

Mostly cloudy night

76° 💧 None 💨 3 mph H 53%30.21 inHg

9:00 PM

Overcast night

74° 💧 None 💨 5 mph H 59%30.21 inHg

10:00 PM

Mostly cloudy night

73° 💧 None 💨 5 mph H 69%30.21 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 5 mph H 75%30.24 inHg

Tomorrow

12:00 AM

Partly cloudy night

70° 💧 None 💨 5 mph H 79%30.21 inHg

1:00 AM

Partly cloudy night

70° 💧 None 💨 4 mph H 82%30.21 inHg

2:00 AM

Mostly cloudy night

69° 💧 None 💨 4 mph H 82%30.21 inHg

3:00 AM

Overcast night

69° 💧 None 💨 5 mph H 78%30.21 inHg

4:00 AM

Mostly cloudy night

69° 💧 None 💨 5 mph H 75%30.18 inHg

5:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 72%30.18 inHg

6:00 AM

Mostly cloudy night

67° 💧 None 💨 4 mph H 73%30.21 inHg

7:00 AM

Mostly cloudy

67° 💧 None 💨 4 mph H 74%30.21 inHg

8:00 AM

Mostly cloudy

70° 💧 None 💨 4 mph H 66%30.21 inHg

9:00 AM

Mostly cloudy

74° 💧 None 💨 4 mph H 59%30.21 inHg

10:00 AM

Partly cloudy

78° 💧 None 💨 6 mph H 52%30.18 inHg

11:00 AM

Mostly sunny

82° 💧 None 💨 7 mph H 45%30.18 inHg

12:00 PM

Partly cloudy

86° 💧 None 💨 8 mph H 40%30.15 inHg

1:00 PM

Partly cloudy

87° 💧 None 💨 10 mph H 37%30.15 inHg

2:00 PM

Partly cloudy

88° 💧 None 💨 10 mph H 37%30.12 inHg

3:00 PM

Mostly sunny

89° 💧 None 💨 10 mph H 38%30.06 inHg

4:00 PM

Partly cloudy

89° 💧 None 💨 11 mph H 39%30.03 inHg

5:00 PM

Partly cloudy

88° 💧 None 💨 12 mph H 41%30.03 inHg

6:00 PM

Sunny

86° 💧 None 💨 10 mph H 44%30.00 inHg

7:00 PM

Sunny

84° 💧 None 💨 7 mph H 48%30.00 inHg

8:00 PM

Clear night

81° 💧 None 💨 6 mph H 55%30.00 inHg

9:00 PM

Clear night

79° 💧 None 💨 10 mph H 55%30.00 inHg

10:00 PM

Clear night

79° 💧 None 💨 11 mph H 54%30.00 inHg

11:00 PM

Clear night

78° 💧 None 💨 12 mph H 55%30.00 inHg

Thursday

12:00 AM

Clear night

77° 💧 None 💨 12 mph H 56%30.00 inHg

1:00 AM

Clear night

76° 💧 None 💨 11 mph H 57%29.97 inHg

2:00 AM

Clear night

76° 💧 None 💨 11 mph H 56%29.97 inHg

3:00 AM

Clear night

75° 💧 None 💨 11 mph H 56%29.94 inHg

4:00 AM

Mostly clear night

74° 💧 None 💨 10 mph H 56%29.94 inHg

5:00 AM

Clear night

74° 💧 None 💨 10 mph H 56%29.94 inHg

6:00 AM

Mostly clear night

74° 💧 None 💨 9 mph H 57%29.94 inHg

7:00 AM

Mostly sunny

73° 💧 None 💨 9 mph H 59%29.94 inHg

8:00 AM

Partly cloudy

75° 💧 None 💨 8 mph H 56%29.94 inHg

9:00 AM

Light rain

72° 💧 0.059 in 💨 9 mph H 84%29.94 inHg

10:00 AM

Light rain

71° 💧 0.073 in 💨 10 mph H 95%29.94 inHg

11:00 AM

Light rain

74° 💧 0.017 in 💨 9 mph H 90%29.94 inHg

12:00 PM

Light rain

77° 💧 0.016 in 💨 9 mph H 83%29.91 inHg

1:00 PM

Light rain

75° 💧 0.077 in 💨 9 mph H 90%29.91 inHg

2:00 PM

Light rain

74° 💧 0.067 in 💨 10 mph H 96%29.88 inHg

3:00 PM

Light rain

77° 💧 0.015 in 💨 9 mph H 86%29.85 inHg

4:00 PM

Light rain

79° 💧 0.010 in 💨 9 mph H 76%29.83 inHg

5:00 PM

Light rain

78° 💧 0.014 in 💨 9 mph H 75%29.80 inHg

6:00 PM

Light rain

75° 💧 0.057 in 💨 8 mph H 93%29.80 inHg

7:00 PM

Thunderstorms

73° 💧 0.137 in 💨 9 mph H 96%29.83 inHg

8:00 PM

Moderate rain

72° 💧 0.135 in 💨 6 mph H 97%29.83 inHg

Friday

5:00 AM

Mostly clear night

66° 💧 None 💨 5 mph H 97%29.94 inHg

8:00 AM

Sunny

65° 💧 None 💨 6 mph H 95%30.03 inHg

11:00 AM

Sunny

71° 💧 None 💨 6 mph H 60%30.03 inHg

2:00 PM

Sunny

75° 💧 None 💨 4 mph H 49%30.00 inHg

5:00 PM

Sunny

76° 💧 None 💨 4 mph H 48%29.97 inHg

8:00 PM

Clear night

69° 💧 None 💨 1 mph H 68%30.00 inHg

11:00 PM

Overcast night

66° 💧 None 💨 1 mph H 79%30.06 inHg

Saturday

2:00 AM

Partly cloudy night

64° 💧 None 💨 2 mph H 80%30.06 inHg

5:00 AM

Overcast night

61° 💧 None 💨 3 mph H 89%30.06 inHg

8:00 AM

Overcast

63° 💧 None 💨 5 mph H 86%30.12 inHg

11:00 AM

Overcast

72° 💧 None 💨 4 mph H 68%30.12 inHg

2:00 PM

Partly cloudy

79° 💧 None 💨 9 mph H 57%30.06 inHg

5:00 PM

Mostly cloudy

79° 💧 None 💨 9 mph H 58%30.03 inHg

8:00 PM

Partly cloudy night

73° 💧 None 💨 7 mph H 70%30.06 inHg

11:00 PM

Mostly clear night

69° 💧 None 💨 8 mph H 79%30.09 inHg

Sunday

2:00 AM

Overcast night

70° 💧 None 💨 8 mph H 81%30.06 inHg

5:00 AM

Light rain

70° 💧 None 💨 7 mph H 90%30.03 inHg

8:00 AM

Mostly cloudy

71° 💧 None 💨 5 mph H 96%30.03 inHg

11:00 AM

Light rain

78° 💧 None 💨 4 mph H 82%30.03 inHg

2:00 PM

Light rain

80° 💧 None 💨 5 mph H 79%30.00 inHg

5:00 PM

Light rain

78° 💧 None 💨 3 mph H 84%29.97 inHg

8:00 PM

Clear night

73° 💧 None 💨 4 mph H 98%30.00 inHg

11:00 PM

Clear night

72° 💧 None 💨 4 mph H 96%30.03 inHg

Monday

2:00 AM

Partly cloudy night

71° 💧 None 💨 5 mph H 97%30.06 inHg

8:00 AM

Partly cloudy

70° 💧 None 💨 3 mph H 97%30.00 inHg

2:00 PM

Partly cloudy

70° 💧 None 💨 5 mph H 96%30.09 inHg

8:00 PM

Mostly cloudy night

78° 💧 None 💨 8 mph H 56%30.09 inHg

Tuesday

2:00 AM

Partly cloudy night

70° 💧 None 💨 5 mph H 70%30.12 inHg

8:00 AM

Mostly sunny

63° 💧 None 💨 3 mph H 85%30.18 inHg

2:00 PM

Mostly sunny

64° 💧 None 💨 5 mph H 87%30.24 inHg

8:00 PM

Mostly cloudy night

83° 💧 None 💨 8 mph H 55%30.21 inHg

Wednesday

2:00 AM

Mostly clear night

75° 💧 None 💨 7 mph H 69%30.18 inHg

8:00 AM

Partly cloudy

71° 💧 None 💨 9 mph H 93%30.18 inHg

2:00 PM

Partly cloudy

72° 💧 None 💨 3 mph H 91%30.21 inHg

8:00 PM

Partly cloudy night

85° 💧 None 💨 5 mph H 66%30.18 inHg

Thursday

2:00 AM

Mostly clear night

78° 💧 None 💨 2 mph H 86%30.18 inHg

8:00 AM

Overcast

71° 💧 None 💨 5 mph H 89%30.21 inHg

2:00 PM

Partly cloudy

65° 💧 None 💨 6 mph H 92%30.24 inHg

8:00 PM

Partly cloudy night

72° 💧 None 💨 2 mph H 64%30.12 inHg

Friday

2:00 AM

Moderate rain

69° 💧 None 💨 0 mph H 95%30.03 inHg

8:00 AM

Light rain

65° 💧 None 💨 13 mph H 93%29.97 inHg

2:00 PM

Sunny

60° 💧 None 💨 14 mph H 75%30.09 inHg

8:00 PM

Clear night

62° 💧 None 💨 16 mph H 46%30.15 inHg

Saturday

2:00 AM

Clear night

56° 💧 None 💨 8 mph H 54%30.21 inHg

8:00 AM

Sunny

49° 💧 None 💨 4 mph H 78%30.27 inHg

2:00 PM

Sunny

50° 💧 None 💨 6 mph H 76%30.33 inHg

8:00 PM

Clear night

62° 💧 None 💨 4 mph H 53%30.24 inHg

Sunday

2:00 AM

Clear night

58° 💧 None 💨 4 mph H 73%30.21 inHg

8:00 AM

Sunny

53° 💧 None 💨 4 mph H 85%30.21 inHg

2:00 PM

Sunny

54° 💧 None 💨 4 mph H 92%30.24 inHg

8:00 PM

Clear night

69° 💧 None 💨 2 mph H 52%30.21 inHg

Monday

2:00 AM

Clear night

63° 💧 None 💨 2 mph H 78%30.18 inHg

8:00 AM

Mostly sunny

58° 💧 None 💨 6 mph H 80%30.18 inHg

2:00 PM

Partly cloudy

58° 💧 None 💨 4 mph H 82%30.21 inHg

8:00 PM

Clear night

75° 💧 None 💨 7 mph H 48%30.12 inHg

Tuesday

2:00 AM

Mostly clear night

66° 💧 None 💨 8 mph H 76%30.06 inHg

8:00 AM

Partly cloudy

64° 💧 None 💨 10 mph H 70%30.03 inHg

2:00 PM

Overcast

65° 💧 None 💨 4 mph H 72%30.03 inHg

8:00 PM

Partly cloudy night

74° 💧 None 💨 9 mph H 60%29.97 inHg

Wednesday

2:00 AM

Clear night

70° 💧 None 💨 7 mph H 70%29.94 inHg

In Marietta and, more broadly, across the state of Pennsylvania: The rest of the day will see mostly cloudy skies with temperatures ranging from the mid-60s to the mid-70s. Winds will be light, coming from the east at up to 3 mph, with occasional gusts reaching 4 mph. No precipitation is expected, so outdoor plans should be comfortable and dry. Conditions remain mild to warm, making for a pleasant afternoon.

15-Day Weather Outlook for Marietta

TomorrowTomorrow

Mostly cloudy 89°/67° 💧 None 💨 12 mph

Thursday, Sep 10Thu Sep 10

Thunderstorms 81°/71° 💧 None 💨 12 mph

Friday, Sep 11Fri Sep 11

Moderate rain 76°/65° 💧 0.657 in 💨 6 mph

Saturday, Sep 12Sat Sep 12

Overcast 79°/61° 💧 None 💨 9 mph

Sunday, Sep 13Sun Sep 13

Light rain 80°/69° 💧 0.291 in 💨 8 mph

Monday, Sep 14Mon Sep 14

Partly cloudy 73°/70° 💧 0.123 in 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 78°/63° 💧 None 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 83°/71° 💧 None 💨 9 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 85°/65° 💧 0.421 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Moderate rain 72°/60° 💧 0.779 in 💨 14 mph

Saturday, Sep 19Sat Sep 19

Sunny 62°/49° 💧 None 💨 16 mph

Sunday, Sep 20Sun Sep 20

Sunny 62°/53° 💧 None 💨 4 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 69°/58° 💧 None 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 75°/64° 💧 0.001 in 💨 10 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 74°/70° 💧 0.020 in 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Marietta

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Marietta

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 1:00 PM

PM2.5 Fine particles Good 8,7µg/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 Good 9,9µg/m³

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

O₃ Ozone Moderate 112,6µg/m³

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

NO₂ Nitrogen dioxide Good 2,7µg/m³

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

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Marietta

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 6,9High 😐Moderate

Tomorrow UV 7,4High 😐Moderate

Thursday UV 2,3Low 😐Moderate

Friday UV 6,7High 😐Moderate

Saturday UV 6,0High 🙂Fair

Sunday UV 5,0Moderate —Unavailable

Monday UV 6,0High —Unavailable

Hourly UV index today

1:00 PMUV 6,9 2:00 PMUV 6,4 3:00 PMUV 5,0 4:00 PMUV 3,3 5:00 PMUV 1,7 6:00 PMUV 0,6 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.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Marietta

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MARIETTA, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

68/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 9:00 PM–5:08 AM

☁ Cloud cover 45% Real hourly forecast for the best viewing hour.

☾ Moonlight 8% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 34° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min47%

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 Marietta were last refreshed today at 12:06 PM. The current forecast period extends through 10/09/2026 at 10:00 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.