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Current weather in Valley Forge is clear sky.

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

Is the weather forecast for Valley Forge updated regularly?

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

Now · 12:14 PM

Valley Forge Weather & Hourly Forecast

United States · Tennessee · 37643

80°F

Sunny

Feels like: 78°F

💧 Humidity 57% 🌡 Pressure 30.12 inHg 💨 Wind 10 mph 👁 Visibility 23.3 mi ☁ Clouds 10% ☀️ UV index 6.9 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Valley Forge

Today

1:00 PM

Mostly sunny

82° 💧 0.025 in 💨 11 mph H 53%30.09 inHg

4:00 PM

Mostly sunny

82° 💧 0.008 in 💨 9 mph H 53%30.00 inHg

7:00 PM

Sunny

79° 💧 0.001 in 💨 3 mph H 64%29.94 inHg

10:00 PM

Mostly cloudy night

73° 💧 0.001 in 💨 4 mph H 70%30.00 inHg

Tomorrow

1:00 AM

Clear night

71° 💧 None 💨 4 mph H 73%29.97 inHg

4:00 AM

Mostly clear night

70° 💧 None 💨 2 mph H 73%29.97 inHg

7:00 AM

Clear night

68° 💧 None 💨 3 mph H 76%30.00 inHg

10:00 AM

Mostly sunny

77° 💧 0.000 in 💨 2 mph H 64%30.03 inHg

1:00 PM

Partly cloudy

82° 💧 0.000 in 💨 4 mph H 56%30.00 inHg

4:00 PM

Light thunderstorms

83° 💧 0.027 in 💨 4 mph H 54%29.94 inHg

7:00 PM

Partly cloudy

77° 💧 0.006 in 💨 1 mph H 72%29.94 inHg

10:00 PM

Partly cloudy night

70° 💧 None 💨 4 mph H 95%29.97 inHg

Saturday

1:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 88%29.97 inHg

4:00 AM

Mostly cloudy night

66° 💧 None 💨 6 mph H 92%29.97 inHg

7:00 AM

Mostly cloudy night

66° 💧 None 💨 4 mph H 92%30.00 inHg

10:00 AM

Mostly sunny

79° 💧 0.001 in 💨 1 mph H 65%30.03 inHg

Today

1:00 PM

Mostly sunny

82° 💧 None 💨 11 mph H 53%30.09 inHg

2:00 PM

Light rain

81° 💧 0.011 in 💨 10 mph H 55%30.06 inHg

3:00 PM

Light rain

82° 💧 0.015 in 💨 10 mph H 55%30.03 inHg

4:00 PM

Mostly sunny

82° 💧 0.003 in 💨 9 mph H 53%30.00 inHg

5:00 PM

Mostly sunny

82° 💧 0.002 in 💨 9 mph H 52%30.00 inHg

6:00 PM

Mostly sunny

81° 💧 0.002 in 💨 7 mph H 54%29.97 inHg

7:00 PM

Sunny

79° 💧 0.001 in 💨 3 mph H 64%29.94 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 3 mph H 68%29.94 inHg

9:00 PM

Partly cloudy night

74° 💧 0.000 in 💨 4 mph H 68%29.97 inHg

10:00 PM

Mostly cloudy night

73° 💧 0.001 in 💨 4 mph H 70%30.00 inHg

11:00 PM

Mostly clear night

73° 💧 None 💨 4 mph H 71%30.00 inHg

Tomorrow

12:00 AM

Mostly clear night

71° 💧 None 💨 4 mph H 75%30.00 inHg

1:00 AM

Clear night

71° 💧 None 💨 4 mph H 73%29.97 inHg

2:00 AM

Clear night

71° 💧 None 💨 4 mph H 73%29.97 inHg

3:00 AM

Clear night

70° 💧 None 💨 3 mph H 74%29.97 inHg

4:00 AM

Mostly clear night

70° 💧 None 💨 2 mph H 73%29.97 inHg

5:00 AM

Clear night

70° 💧 None 💨 2 mph H 73%29.97 inHg

6:00 AM

Clear night

68° 💧 None 💨 3 mph H 76%30.00 inHg

7:00 AM

Clear night

68° 💧 None 💨 3 mph H 76%30.00 inHg

8:00 AM

Sunny

70° 💧 None 💨 4 mph H 74%30.00 inHg

9:00 AM

Sunny

74° 💧 None 💨 3 mph H 68%30.03 inHg

10:00 AM

Mostly sunny

77° 💧 None 💨 2 mph H 64%30.03 inHg

11:00 AM

Sunny

79° 💧 None 💨 3 mph H 60%30.03 inHg

12:00 PM

Partly cloudy

81° 💧 0.000 in 💨 4 mph H 57%30.03 inHg

1:00 PM

Partly cloudy

82° 💧 None 💨 4 mph H 56%30.00 inHg

2:00 PM

Sunny

83° 💧 None 💨 4 mph H 54%29.97 inHg

3:00 PM

Mostly sunny

84° 💧 0.000 in 💨 5 mph H 53%29.94 inHg

4:00 PM

Light thunderstorms

83° 💧 0.004 in 💨 4 mph H 54%29.94 inHg

5:00 PM

Light thunderstorms

81° 💧 0.017 in 💨 2 mph H 60%29.91 inHg

6:00 PM

Light rain

80° 💧 0.005 in 💨 3 mph H 64%29.91 inHg

7:00 PM

Partly cloudy

77° 💧 0.003 in 💨 1 mph H 72%29.94 inHg

8:00 PM

Mostly cloudy night

74° 💧 0.003 in 💨 2 mph H 84%29.97 inHg

9:00 PM

Partly cloudy night

72° 💧 None 💨 2 mph H 91%29.97 inHg

10:00 PM

Partly cloudy night

70° 💧 None 💨 4 mph H 95%29.97 inHg

11:00 PM

Partly cloudy night

69° 💧 None 💨 5 mph H 96%29.97 inHg

Saturday

12:00 AM

Mostly clear night

69° 💧 None 💨 4 mph H 89%29.97 inHg

1:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 88%29.97 inHg

2:00 AM

Mostly cloudy night

67° 💧 None 💨 6 mph H 89%29.97 inHg

3:00 AM

Mostly cloudy night

67° 💧 None 💨 6 mph H 91%29.97 inHg

4:00 AM

Mostly cloudy night

66° 💧 None 💨 6 mph H 92%29.97 inHg

5:00 AM

Mostly cloudy night

66° 💧 None 💨 6 mph H 91%29.97 inHg

6:00 AM

Overcast night

66° 💧 None 💨 5 mph H 91%30.00 inHg

7:00 AM

Mostly cloudy night

66° 💧 None 💨 4 mph H 92%30.00 inHg

8:00 AM

Overcast

68° 💧 None 💨 4 mph H 88%30.03 inHg

9:00 AM

Partly cloudy

75° 💧 None 💨 2 mph H 75%30.03 inHg

10:00 AM

Mostly sunny

79° 💧 0.000 in 💨 1 mph H 65%30.03 inHg

11:00 AM

Partly cloudy

82° 💧 0.000 in 💨 2 mph H 56%30.03 inHg

12:00 PM

Partly cloudy

83° 💧 0.001 in 💨 2 mph H 53%30.03 inHg

1:00 PM

Mostly cloudy

85° 💧 0.002 in 💨 2 mph H 51%30.03 inHg

2:00 PM

Overcast

85° 💧 0.001 in 💨 2 mph H 49%30.00 inHg

3:00 PM

Light thunderstorms

79° 💧 0.025 in 💨 5 mph H 64%30.00 inHg

4:00 PM

Light thunderstorms

82° 💧 0.012 in 💨 4 mph H 59%29.97 inHg

5:00 PM

Light rain

81° 💧 0.008 in 💨 5 mph H 62%29.97 inHg

6:00 PM

Overcast

81° 💧 0.003 in 💨 6 mph H 60%29.97 inHg

7:00 PM

Overcast

78° 💧 0.004 in 💨 6 mph H 69%29.97 inHg

8:00 PM

Overcast night

74° 💧 None 💨 3 mph H 80%30.00 inHg

Sunday

5:00 AM

Partly cloudy night

66° 💧 None 💨 2 mph H 96%30.06 inHg

8:00 AM

Partly cloudy

67° 💧 None 💨 3 mph H 96%30.12 inHg

11:00 AM

Light rain

72° 💧 None 💨 3 mph H 88%30.15 inHg

2:00 PM

Mostly sunny

77° 💧 None 💨 4 mph H 75%30.09 inHg

5:00 PM

Sunny

78° 💧 None 💨 3 mph H 70%30.03 inHg

8:00 PM

Clear night

72° 💧 None 💨 1 mph H 87%30.06 inHg

11:00 PM

Clear night

68° 💧 None 💨 2 mph H 94%30.12 inHg

Monday

2:00 AM

Partly cloudy night

67° 💧 None 💨 2 mph H 90%30.09 inHg

5:00 AM

Clear night

67° 💧 None 💨 1 mph H 88%30.09 inHg

8:00 AM

Partly cloudy

69° 💧 None 💨 1 mph H 88%30.15 inHg

11:00 AM

Mostly sunny

77° 💧 None 💨 4 mph H 73%30.15 inHg

2:00 PM

Sunny

81° 💧 None 💨 5 mph H 61%30.12 inHg

5:00 PM

Sunny

82° 💧 None 💨 4 mph H 57%30.06 inHg

8:00 PM

Clear night

75° 💧 None 💨 2 mph H 76%30.09 inHg

11:00 PM

Clear night

70° 💧 None 💨 3 mph H 83%30.12 inHg

Tuesday

2:00 AM

Clear night

68° 💧 None 💨 5 mph H 82%30.12 inHg

5:00 AM

Clear night

68° 💧 None 💨 5 mph H 80%30.15 inHg

8:00 AM

Sunny

68° 💧 None 💨 7 mph H 82%30.21 inHg

11:00 AM

Sunny

81° 💧 None 💨 4 mph H 56%30.24 inHg

2:00 PM

Light rain

85° 💧 None 💨 3 mph H 47%30.21 inHg

5:00 PM

Mostly sunny

85° 💧 None 💨 2 mph H 49%30.15 inHg

8:00 PM

Clear night

75° 💧 None 💨 6 mph H 76%30.18 inHg

11:00 PM

Clear night

72° 💧 None 💨 8 mph H 81%30.24 inHg

Wednesday

2:00 AM

Mostly clear night

70° 💧 None 💨 8 mph H 86%30.24 inHg

8:00 AM

Mostly sunny

68° 💧 None 💨 7 mph H 86%30.27 inHg

2:00 PM

Sunny

67° 💧 None 💨 4 mph H 88%30.30 inHg

8:00 PM

Light rain

82° 💧 None 💨 5 mph H 62%30.27 inHg

Thursday

2:00 AM

Clear night

74° 💧 None 💨 4 mph H 83%30.21 inHg

8:00 AM

Sunny

67° 💧 None 💨 5 mph H 93%30.24 inHg

2:00 PM

Mostly sunny

65° 💧 None 💨 2 mph H 89%30.21 inHg

8:00 PM

Mostly clear night

83° 💧 None 💨 3 mph H 56%30.15 inHg

Friday

2:00 AM

Mostly clear night

75° 💧 None 💨 6 mph H 72%30.06 inHg

8:00 AM

Mostly cloudy

66° 💧 None 💨 2 mph H 97%30.09 inHg

2:00 PM

Overcast

67° 💧 None 💨 2 mph H 98%30.06 inHg

8:00 PM

Light rain

71° 💧 None 💨 4 mph H 90%30.03 inHg

Saturday

2:00 AM

Light rain

66° 💧 None 💨 4 mph H 96%30.03 inHg

8:00 AM

Overcast

63° 💧 None 💨 1 mph H 99%30.03 inHg

2:00 PM

Mostly cloudy

61° 💧 None 💨 4 mph H 98%30.06 inHg

8:00 PM

Light rain

73° 💧 None 💨 6 mph H 63%30.03 inHg

Sunday

2:00 AM

Mostly clear night

65° 💧 None 💨 6 mph H 81%30.03 inHg

8:00 AM

Partly cloudy

59° 💧 None 💨 2 mph H 90%30.06 inHg

2:00 PM

Partly cloudy

60° 💧 None 💨 3 mph H 89%30.09 inHg

8:00 PM

Light rain

74° 💧 None 💨 3 mph H 62%30.06 inHg

Monday

2:00 AM

Partly cloudy night

64° 💧 None 💨 2 mph H 99%30.06 inHg

8:00 AM

Mostly sunny

58° 💧 None 💨 3 mph H 98%30.12 inHg

2:00 PM

Mostly sunny

54° 💧 None 💨 4 mph H 97%30.15 inHg

8:00 PM

Partly cloudy night

73° 💧 None 💨 5 mph H 42%30.12 inHg

Tuesday

2:00 AM

Mostly clear night

63° 💧 None 💨 7 mph H 58%30.12 inHg

8:00 AM

Mostly cloudy

55° 💧 None 💨 3 mph H 67%30.15 inHg

2:00 PM

Overcast

54° 💧 None 💨 3 mph H 84%30.21 inHg

8:00 PM

Overcast night

75° 💧 None 💨 4 mph H 52%30.15 inHg

Wednesday

2:00 AM

Partly cloudy night

66° 💧 None 💨 6 mph H 78%30.15 inHg

8:00 AM

Mostly cloudy

61° 💧 None 💨 4 mph H 84%30.15 inHg

2:00 PM

Overcast

61° 💧 None 💨 2 mph H 89%30.15 inHg

8:00 PM

Overcast night

72° 💧 None 💨 4 mph H 64%30.09 inHg

Thursday

2:00 AM

Mostly clear night

69° 💧 None 💨 1 mph H 75%30.03 inHg

8:00 AM

Partly cloudy

61° 💧 None 💨 2 mph H 95%30.03 inHg

2:00 PM

Mostly sunny

62° 💧 None 💨 2 mph H 90%30.06 inHg

8:00 PM

Mostly cloudy night

77° 💧 None 💨 5 mph H 49%30.06 inHg

Friday

2:00 AM

Overcast night

69° 💧 None 💨 2 mph H 52%30.06 inHg

In Valley Forge and, more broadly, across the state of Tennessee: The rest of the day will be mostly sunny with a few clouds, accompanied by hot temperatures ranging from 76 to 88 degrees Fahrenheit. Expect light south winds at speeds up to 8 mph, with occasional gusts reaching 9 mph. No precipitation is anticipated, so outdoor activities should proceed without weather-related concerns. As the day progresses, temperatures may remain steady or slightly climb, making it a warm afternoon. Remember to stay hydrated and protect yourself from the sun if spending time outdoors. Overall, it looks like a warm and dry day ahead.

15-Day Weather Outlook for Valley Forge

TomorrowTomorrow

Light thunderstorms 84°/68° 💧 None 💨 5 mph

Saturday, Sep 12Sat Sep 12

Light thunderstorms 85°/66° 💧 None 💨 6 mph

Sunday, Sep 13Sun Sep 13

Light rain 78°/66° 💧 0.506 in 💨 4 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 82°/67° 💧 0.002 in 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Light rain 85°/68° 💧 0.026 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 75°/67° 💧 0.222 in 💨 8 mph

Thursday, Sep 17Thu Sep 17

Light rain 82°/65° 💧 0.039 in 💨 5 mph

Friday, Sep 18Fri Sep 18

Mostly cloudy 83°/66° 💧 0.132 in 💨 6 mph

Saturday, Sep 19Sat Sep 19

Light rain 71°/61° 💧 0.261 in 💨 4 mph

Sunday, Sep 20Sun Sep 20

Light rain 73°/59° 💧 0.026 in 💨 6 mph

Monday, Sep 21Mon Sep 21

Light rain 74°/54° 💧 0.314 in 💨 4 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 73°/54° 💧 0.001 in 💨 7 mph

Wednesday, Sep 23Wed Sep 23

Overcast 75°/61° 💧 0.001 in 💨 6 mph

Thursday, Sep 24Thu Sep 24

Overcast 72°/61° 💧 0.011 in 💨 4 mph

Friday, Sep 25Fri Sep 25

Mostly cloudy 77°/69° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Valley Forge

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Valley Forge

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 1:00 PM

PM2.5 Fine particles Good 6,1µg/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 8,2µg/m³

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

O₃ Ozone Fair 81,0µg/m³

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

NO₂ Nitrogen dioxide Good 2,4µg/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 Valley Forge

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 8,2Very high 🙂Fair

Tomorrow UV 5,9Moderate 😐Moderate

Saturday UV 7,7High 😊Good

Sunday UV 7,7High 🙂Fair

Monday UV 6,0High 😊Good

Tuesday UV 6,0High —Unavailable

Wednesday UV 6,0High —Unavailable

Hourly UV index today

1:00 PMUV 8,2 2:00 PMUV 8,0 3:00 PMUV 6,7 4:00 PMUV 4,3 5:00 PMUV 1,8 6:00 PMUV 0,6 7:00 PMUV 0,1

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

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

Stay hydrated

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

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Valley Forge

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · VALLEY FORGE, TENNESSEE

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: 9:11 PM–5:40 AM

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

☾ Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 63° high at the best hour.

✦ Estimated visible meteors 2–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min77%

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 Valley Forge were last refreshed today at 12:14 PM. The current forecast period extends through 12/09/2026 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.