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Chattanooga Running Weather

Tuesday, July 21, 2026 · Hour-by-hour forecast updated 8:25 AM CDT

Best Time to Run in Chattanooga Today

6 AM

76°F and mostly sunny at peak. Wind 1 mph from the S, dew point 70°F.

51
Peak FitScore
Temperature
76°F / feels 83°
Wind
1 mph S, gusts 6
Dew Point
70°F — miserable
Humidity
81%
UV Index
0 — Low
Air Quality
46 AQI — Good

Hourly running conditions

🌤️ 8 AM
45
80° feels 88° 5 mph S 1% rain
☁️ 9 AM
45
83° feels 91° 5 mph S 1% rain
☁️ 10 AM
43
86° feels 93° 9 mph SSE 1% rain
🌤️ 11 AM
25
89° feels 97° 9 mph S 1% rain
☁️ 12 PM
24
92° feels 99° 10 mph S 1% rain
☁️ 1 PM
23
93° feels 101° 10 mph S 2% rain
🌤️ 2 PM
23
94° feels 100° 10 mph S 2% rain
🌤️ 3 PM
24
95° feels 100° 10 mph S 3% rain
☀️ 4 PM
24
95° feels 99° 11 mph S 3% rain
☀️ 5 PM
24
95° feels 97° 11 mph S 4% rain
☀️ 6 PM
24
94° feels 96° 11 mph S 4% rain
☀️ 7 PM
26
93° feels 96° 9 mph S 3% rain
80–100 Excellent 60–79 Good 40–59 Fair Below 40 Poor

7-day running forecast

☁️
Today Jul 21
95° / 75°
51
🏃
🌧️
Wed Jul 22
95° / 76°
51
🏃 💧 58%
🌧️
Thu Jul 23
83° / 70°
69
🏃 9 AM–12 PM 💧 46%
⛈️
Fri Jul 24
92° / 70°
66
🏃 6–9 AM 💧 26%
🌦️
Sat Jul 25
84° / 67°
70
🏃 9 AM–12 PM 💧 54%
🌧️
Sun Jul 26
93° / 70°
69
🏃 6–9 AM
🌦️
Mon Jul 27
97° / 74°
63
🏃 6–9 AM
Get Chattanooga's forecast every evening

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🌤 Tomorrow in Chattanooga: Best window: 9–11 AM (FitScore 95) 6am: 48°F, feels 45° — NW 8mph 9am: 58°F, feels 56° — W 12mph 12pm: 66°F, feels 65° — SW 8mph ☔ Rain likely after 3pm.
Yesterday 8:14 PM Nightly

Chattanooga running weather FAQ

What's the best time to run in Chattanooga today?

Based on today's FitScore analysis, the best time to run is 6 AM with a peak FitScore of 51/100. Check the hourly breakdown above for detailed conditions throughout the day.

What months are best for running in Chattanooga?

The best months for running in Chattanooga are March, April, October, November. The most challenging months are typically July, August. Dew points routinely exceed 70°F in summer. Run before 8 AM or wait for evening cooldown.

What is the FitScore?

FitScore rates each hour from 0–100 for outdoor exercise based on temperature, humidity, dew point, wind, precipitation probability, UV index, and air quality. Higher scores mean better conditions.

Nearby:Huntsville, ALMurfreesboro, TNKnoxville, TN
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