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Current weather in Cottage Grove is clear sky.

Where can I find the hourly weather forecast for Cottage Grove?

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

Is the weather forecast for Cottage Grove updated regularly?

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

Now · 7:17 AM

Cottage Grove Weather & Hourly Forecast

United States · Tennessee · 38224

78°F

Sunny

Feels like: 81°F

💧 Humidity 74% 🌡 Pressure 30.09 inHg 💨 Wind 6 mph 👁 Visibility 17.2 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Cottage Grove

Today

8:00 AM

Sunny

81° 💧 None 💨 6 mph H 67%30.12 inHg

11:00 AM

Sunny

93° 💧 0.000 in 💨 8 mph H 43%30.12 inHg

2:00 PM

Sunny

97° 💧 0.001 in 💨 8 mph H 34%30.09 inHg

5:00 PM

Sunny

96° 💧 None 💨 6 mph H 33%30.06 inHg

8:00 PM

Clear night

88° 💧 None 💨 3 mph H 47%30.09 inHg

11:00 PM

Clear night

83° 💧 None 💨 3 mph H 55%30.15 inHg

Tomorrow

2:00 AM

Clear night

82° 💧 None 💨 7 mph H 53%30.15 inHg

5:00 AM

Clear night

80° 💧 None 💨 6 mph H 60%30.18 inHg

8:00 AM

Sunny

82° 💧 None 💨 5 mph H 60%30.24 inHg

11:00 AM

Sunny

93° 💧 0.000 in 💨 8 mph H 42%30.27 inHg

2:00 PM

Sunny

98° 💧 0.000 in 💨 4 mph H 36%30.21 inHg

5:00 PM

Mostly sunny

97° 💧 None 💨 3 mph H 36%30.15 inHg

8:00 PM

Mostly clear night

89° 💧 None 💨 2 mph H 49%30.18 inHg

11:00 PM

Clear night

84° 💧 None 💨 1 mph H 58%30.21 inHg

Thursday

2:00 AM

Clear night

82° 💧 None 💨 5 mph H 58%30.21 inHg

5:00 AM

Clear night

80° 💧 None 💨 5 mph H 61%30.24 inHg

Today

8:00 AM

Sunny

81° 💧 None 💨 6 mph H 67%30.12 inHg

9:00 AM

Partly cloudy

86° 💧 None 💨 7 mph H 58%30.12 inHg

10:00 AM

Mostly cloudy

90° 💧 None 💨 7 mph H 51%30.12 inHg

11:00 AM

Sunny

93° 💧 None 💨 8 mph H 43%30.12 inHg

12:00 PM

Sunny

95° 💧 None 💨 9 mph H 37%30.12 inHg

1:00 PM

Sunny

97° 💧 0.000 in 💨 9 mph H 35%30.12 inHg

2:00 PM

Sunny

97° 💧 0.000 in 💨 8 mph H 34%30.09 inHg

3:00 PM

Mostly sunny

97° 💧 0.000 in 💨 8 mph H 33%30.09 inHg

4:00 PM

Sunny

97° 💧 0.001 in 💨 7 mph H 33%30.06 inHg

5:00 PM

Sunny

96° 💧 None 💨 6 mph H 33%30.06 inHg

6:00 PM

Sunny

95° 💧 None 💨 4 mph H 36%30.06 inHg

7:00 PM

Sunny

90° 💧 None 💨 3 mph H 42%30.06 inHg

8:00 PM

Clear night

88° 💧 None 💨 3 mph H 47%30.09 inHg

9:00 PM

Clear night

87° 💧 None 💨 1 mph H 49%30.12 inHg

10:00 PM

Clear night

87° 💧 None 💨 0 mph H 50%30.12 inHg

11:00 PM

Clear night

83° 💧 None 💨 3 mph H 55%30.15 inHg

Tomorrow

12:00 AM

Clear night

81° 💧 None 💨 4 mph H 59%30.15 inHg

1:00 AM

Clear night

82° 💧 None 💨 6 mph H 53%30.15 inHg

2:00 AM

Clear night

82° 💧 None 💨 7 mph H 53%30.15 inHg

3:00 AM

Clear night

81° 💧 None 💨 7 mph H 56%30.15 inHg

4:00 AM

Clear night

81° 💧 None 💨 6 mph H 59%30.15 inHg

5:00 AM

Clear night

80° 💧 None 💨 6 mph H 60%30.18 inHg

6:00 AM

Clear night

79° 💧 None 💨 6 mph H 62%30.21 inHg

7:00 AM

Sunny

79° 💧 None 💨 6 mph H 64%30.24 inHg

8:00 AM

Sunny

82° 💧 None 💨 5 mph H 60%30.24 inHg

9:00 AM

Sunny

86° 💧 None 💨 7 mph H 53%30.27 inHg

10:00 AM

Sunny

90° 💧 None 💨 8 mph H 47%30.27 inHg

11:00 AM

Sunny

93° 💧 None 💨 8 mph H 42%30.27 inHg

12:00 PM

Sunny

95° 💧 0.000 in 💨 7 mph H 38%30.27 inHg

1:00 PM

Mostly sunny

97° 💧 None 💨 5 mph H 37%30.24 inHg

2:00 PM

Sunny

98° 💧 None 💨 4 mph H 36%30.21 inHg

3:00 PM

Mostly sunny

98° 💧 0.000 in 💨 3 mph H 36%30.18 inHg

4:00 PM

Mostly sunny

97° 💧 0.000 in 💨 4 mph H 36%30.18 inHg

5:00 PM

Mostly sunny

97° 💧 None 💨 3 mph H 36%30.15 inHg

6:00 PM

Mostly sunny

95° 💧 None 💨 3 mph H 38%30.15 inHg

7:00 PM

Mostly sunny

92° 💧 None 💨 2 mph H 45%30.15 inHg

8:00 PM

Mostly clear night

89° 💧 None 💨 2 mph H 49%30.18 inHg

9:00 PM

Mostly clear night

87° 💧 None 💨 2 mph H 53%30.21 inHg

10:00 PM

Clear night

86° 💧 None 💨 1 mph H 57%30.21 inHg

11:00 PM

Clear night

84° 💧 None 💨 1 mph H 58%30.21 inHg

Thursday

12:00 AM

Clear night

83° 💧 None 💨 2 mph H 60%30.21 inHg

1:00 AM

Clear night

82° 💧 None 💨 4 mph H 60%30.21 inHg

2:00 AM

Clear night

82° 💧 None 💨 5 mph H 58%30.21 inHg

3:00 AM

Clear night

82° 💧 None 💨 6 mph H 57%30.21 inHg

4:00 AM

Clear night

81° 💧 None 💨 6 mph H 58%30.21 inHg

5:00 AM

Clear night

80° 💧 None 💨 5 mph H 61%30.24 inHg

6:00 AM

Clear night

79° 💧 None 💨 5 mph H 63%30.24 inHg

7:00 AM

Sunny

79° 💧 None 💨 5 mph H 65%30.24 inHg

8:00 AM

Sunny

83° 💧 None 💨 4 mph H 60%30.27 inHg

9:00 AM

Sunny

87° 💧 None 💨 5 mph H 53%30.27 inHg

10:00 AM

Sunny

91° 💧 None 💨 6 mph H 47%30.27 inHg

11:00 AM

Sunny

94° 💧 0.000 in 💨 5 mph H 42%30.27 inHg

12:00 PM

Sunny

96° 💧 None 💨 4 mph H 38%30.24 inHg

1:00 PM

Sunny

97° 💧 None 💨 4 mph H 35%30.21 inHg

2:00 PM

Mostly sunny

98° 💧 0.000 in 💨 3 mph H 34%30.18 inHg

3:00 PM

Mostly sunny

99° 💧 None 💨 2 mph H 33%30.15 inHg

4:00 PM

Mostly sunny

98° 💧 0.004 in 💨 2 mph H 33%30.12 inHg

5:00 PM

Sunny

97° 💧 0.002 in 💨 2 mph H 34%30.12 inHg

6:00 PM

Sunny

96° 💧 0.000 in 💨 1 mph H 36%30.12 inHg

7:00 PM

Clear night

92° 💧 None 💨 1 mph H 44%30.12 inHg

10:00 PM

Clear night

86° 💧 None 💨 3 mph H 52%30.15 inHg

Friday

1:00 AM

Clear night

82° 💧 None 💨 3 mph H 60%30.15 inHg

4:00 AM

Clear night

79° 💧 None 💨 3 mph H 65%30.12 inHg

7:00 AM

Sunny

79° 💧 None 💨 0 mph H 67%30.15 inHg

10:00 AM

Sunny

93° 💧 None 💨 2 mph H 41%30.15 inHg

1:00 PM

Mostly sunny

98° 💧 None 💨 3 mph H 30%30.09 inHg

4:00 PM

Sunny

99° 💧 None 💨 2 mph H 28%30.00 inHg

7:00 PM

Mostly clear night

93° 💧 None 💨 3 mph H 35%30.00 inHg

10:00 PM

Clear night

86° 💧 None 💨 2 mph H 45%30.03 inHg

Saturday

1:00 AM

Clear night

83° 💧 None 💨 5 mph H 47%30.00 inHg

4:00 AM

Clear night

80° 💧 None 💨 6 mph H 62%29.97 inHg

7:00 AM

Mostly sunny

77° 💧 None 💨 4 mph H 70%30.00 inHg

10:00 AM

Sunny

93° 💧 None 💨 4 mph H 36%30.00 inHg

1:00 PM

Mostly sunny

100° 💧 None 💨 5 mph H 22%29.94 inHg

4:00 PM

Mostly sunny

100° 💧 None 💨 7 mph H 22%29.88 inHg

7:00 PM

Overcast night

93° 💧 None 💨 5 mph H 26%29.88 inHg

10:00 PM

Overcast night

86° 💧 None 💨 2 mph H 33%29.88 inHg

Sunday

1:00 AM

Mostly cloudy night

83° 💧 None 💨 3 mph H 37%29.88 inHg

4:00 AM

Mostly clear night

79° 💧 None 💨 4 mph H 42%29.88 inHg

7:00 AM

Sunny

77° 💧 None 💨 4 mph H 48%29.91 inHg

10:00 AM

Sunny

92° 💧 None 💨 3 mph H 33%29.91 inHg

1:00 PM

Mostly sunny

100° 💧 None 💨 6 mph H 22%29.88 inHg

4:00 PM

Sunny

101° 💧 None 💨 7 mph H 21%29.83 inHg

7:00 PM

Clear night

92° 💧 None 💨 5 mph H 28%29.83 inHg

Monday

1:00 AM

Mostly clear night

84° 💧 None 💨 6 mph H 38%29.85 inHg

7:00 AM

Sunny

78° 💧 None 💨 6 mph H 47%29.91 inHg

1:00 PM

Partly cloudy

100° 💧 None 💨 8 mph H 25%29.88 inHg

7:00 PM

Light rain

80° 💧 None 💨 12 mph H 66%29.88 inHg

Tuesday

1:00 AM

Mostly clear night

74° 💧 None 💨 3 mph H 88%29.91 inHg

7:00 AM

Mostly sunny

72° 💧 None 💨 1 mph H 96%29.97 inHg

1:00 PM

Mostly sunny

89° 💧 None 💨 5 mph H 49%29.97 inHg

7:00 PM

Clear night

83° 💧 None 💨 6 mph H 57%29.94 inHg

Wednesday

1:00 AM

Mostly clear night

75° 💧 None 💨 9 mph H 69%30.00 inHg

7:00 AM

Sunny

69° 💧 None 💨 4 mph H 82%30.06 inHg

1:00 PM

Mostly sunny

87° 💧 None 💨 5 mph H 36%30.03 inHg

7:00 PM

Partly cloudy night

82° 💧 None 💨 5 mph H 42%30.00 inHg

Thursday

1:00 AM

Mostly clear night

73° 💧 None 💨 6 mph H 65%30.03 inHg

7:00 AM

Mostly cloudy

68° 💧 None 💨 4 mph H 83%30.06 inHg

1:00 PM

Overcast

82° 💧 None 💨 5 mph H 45%30.06 inHg

7:00 PM

Mostly cloudy night

80° 💧 None 💨 3 mph H 48%29.97 inHg

Friday

1:00 AM

Mostly clear night

73° 💧 None 💨 4 mph H 65%30.00 inHg

7:00 AM

Mostly cloudy

71° 💧 None 💨 4 mph H 72%30.00 inHg

1:00 PM

Light rain

80° 💧 None 💨 2 mph H 55%30.00 inHg

7:00 PM

Mostly clear night

79° 💧 None 💨 3 mph H 55%29.94 inHg

Saturday

1:00 AM

Clear night

75° 💧 None 💨 6 mph H 62%29.88 inHg

7:00 AM

Light rain

69° 💧 None 💨 6 mph H 95%29.97 inHg

1:00 PM

Overcast

81° 💧 None 💨 6 mph H 61%29.88 inHg

7:00 PM

Mostly clear night

78° 💧 None 💨 5 mph H 74%29.83 inHg

Sunday

1:00 AM

Clear night

71° 💧 None 💨 6 mph H 89%29.88 inHg

7:00 AM

Overcast

68° 💧 None 💨 8 mph H 94%29.91 inHg

1:00 PM

Overcast

80° 💧 None 💨 9 mph H 53%29.94 inHg

7:00 PM

Partly cloudy night

75° 💧 None 💨 5 mph H 57%29.91 inHg

Monday

1:00 AM

Clear night

68° 💧 None 💨 11 mph H 50%30.00 inHg

7:00 AM

Sunny

61° 💧 None 💨 9 mph H 64%30.06 inHg

1:00 PM

Sunny

78° 💧 None 💨 10 mph H 34%30.03 inHg

7:00 PM

Mostly cloudy night

73° 💧 None 💨 8 mph H 39%30.00 inHg

Tuesday

1:00 AM

Overcast night

66° 💧 None 💨 10 mph H 55%30.06 inHg

7:00 AM

Mostly cloudy

62° 💧 None 💨 8 mph H 68%30.09 inHg

1:00 PM

Mostly cloudy

84° 💧 None 💨 8 mph H 30%30.06 inHg

7:00 PM

Overcast night

79° 💧 None 💨 7 mph H 33%30.00 inHg

In Cottage Grove and, more broadly, across the state of Tennessee: The morning starts with clear skies and warm temperatures, rising from the mid-60s to around 69 degrees. Throughout the day, the weather remains dry with no precipitation expected. Temperatures will climb into the upper 80s and reach a high near 93 degrees by the afternoon. Winds will be moderate, coming from the south at around 10 mph, with gusts up to 14 mph. The weather will stay sunny and hot, making it a good day for outdoor activities, but it's important to stay hydrated and protect yourself from the sun. Evening conditions will cool slightly but remain warm, with clear skies continuing through the night.

15-Day Weather Outlook for Cottage Grove

TomorrowTomorrow

Mostly sunny 98°/79° 💧 None 💨 8 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 99°/79° 💧 0.007 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 99°/79° 💧 0.001 in 💨 3 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 100°/77° 💧 None 💨 7 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 101°/77° 💧 None 💨 7 mph

Monday, Sep 21Mon Sep 21

Light rain 100°/78° 💧 0.051 in 💨 12 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 89°/72° 💧 0.049 in 💨 6 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 87°/69° 💧 None 💨 9 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 82°/68° 💧 None 💨 6 mph

Friday, Sep 25Fri Sep 25

Light rain 80°/71° 💧 0.023 in 💨 4 mph

Saturday, Sep 26Sat Sep 26

Light rain 81°/69° 💧 0.150 in 💨 6 mph

Sunday, Sep 27Sun Sep 27

Overcast 80°/68° 💧 0.001 in 💨 9 mph

Monday, Sep 28Mon Sep 28

Mostly cloudy 78°/61° 💧 None 💨 11 mph

Tuesday, Sep 29Tue Sep 29

Overcast 84°/62° 💧 None 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Cottage Grove

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Cottage Grove

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 AM

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

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

O₃ Ozone Good 21,4µg/m³

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

NO₂ Nitrogen dioxide Good 3,9µg/m³

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

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Cottage Grove

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 8,0Very high 😊Good

Tomorrow UV 7,7High 🙂Fair

Thursday UV 9,0Very high 😐Moderate

Friday UV 9,0Very high 😐Moderate

Saturday UV 8,0Very high 😊Good

Sunday UV 8,0Very high —Unavailable

Monday UV 6,0High —Unavailable

Hourly UV index today

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

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.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

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

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 Cottage Grove

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · COTTAGE GROVE, TENNESSEE

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:28 PM–5:10 AM

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

☾ Moonlight 21% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 84° 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 min81%

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 Cottage Grove were last refreshed today at 7:17 AM. The current forecast period extends through 17/09/2026 at 5:00 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.