New York, NY 28° Los Angeles, CA 40° Chicago, IL 32° Houston, TX 36° Miami, FL 36° Phoenix, AZ 43° Seattle, WA 22° Denver, CO 33° Toronto, ON 21° Vancouver, BC 20°
WeatherLive › Tennessee › Signal Mountain

Signal Mountain, TN Weather (37377)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSignal Mountain · 4:21 PM EDT
33° | 21°
33°C
Feels like 36°
Sunny
WindNE 2 mph · Gusts 4 mph
Precip4% · –
Humidity46% · Dew point 20°
UV index8 Very high
Air Quality68 Moderate
Pressure29.97 inHg
Visibility6 mi
Sunrise / Sunset6:11 AM · 7:14 PM · 13h 3m

Weather map — Signal Mountain

Full radar →
Now
33°
2%
2 mph
17:00
33°
1%
4 mph
18:00
31°
1%
4 mph
19:00
29°
1%
4 mph
20:00
27°
1%
5 mph
21:00
27°
1%
4 mph
22:00
27°
1%
4 mph
23:00
26°
1%
3 mph
00:00
25°
9%
4 mph
01:00
25°
5%
3 mph
02:00
23°
6%
2 mph
03:00
22°
7%
2 mph
04:00
22°
8%
4 mph
05:00
22°
9%
4 mph
06:00
22°
11%
4 mph
07:00
21°
12%
4 mph
08:00
22°
12%
3 mph
09:00
19°
7%
3 mph
10:00
22°
5%
3 mph
11:00
24°
3%
2 mph
12:00
26°
2%
3 mph
13:00
28°
1%
4 mph
14:00
29°
1%
4 mph
15:00
29°
1%
4 mph

Today · Fri 8/28

High 33°
4% / –

Sunny. Winds N at 5 mph.

Tonight · Fri 8/28

Low 19°
1% / –

Sunny. Winds NW at 4 mph.

Tomorrow · Sat 8/29

30° | 19°
5% / –

Sunny. Winds S at 5 mph.

7-day trend

Signal Mountain · temperature + precipitation

10-day forecast

Updated 4:21 PM

Details & indices

Wind
2 mph NE
Gusts 4 mph
Humidity
46%
Dew point 20°
Pressure
29.97 inHg
Rising
UV index
8 — Very high
High today
Air Quality
Moderate
AQI 68 · US EPA
Allergy
Very high
Grass
Visibility
6 mi
Clear view
Allergy — Signal Mountain

🌿 Conditions right now

View all →
Birch
None
Grass
Very high
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
Moderate

Sun & moon

Sunrise6:11 AM
Sunset7:14 PM
Length of day13h 3m
Moonrise8:30 PM
Moonset7:32 AM
Moon phase🌕 Full Moon · 100%
Next full moonSep 26 Harvest Moon
Latitude35.1226°N
Longitude-85.3439°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Nashville
Sunny
36°
Memphis
Sunny
34° 🌤️
Knoxville
—
— 🌤️
Chattanooga
—
— 🌤️
Clarksville
—
— 🌤️
Murfreesboro
—
—
Data sources · Friday, August 28
Where the Signal Mountain forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 35.1226°N, -85.3439°.
NBM + global weather models
Updated: 4:21 PM
Weather in Signal Mountain
The 10-day span for Signal Mountain runs from a high near 34° on Friday down to 19° overnight on Saturday. Essentially no rain is in the forecast — expect a dry stretch. No active NWS alerts at the moment — quiet on the hazards front. Right now Signal Mountain is running about 58° warmer than Columbus. Longer view: humid-subtropical — long summers, mild winters, spring storm season.
Signal Mountain, TN · Elev 1,703 ft · 35.12°N, 85.34°W · Tennessee · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 4:21 PM