DECATUR, TN 37322 Weather Forecast & Current Conditions

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CHATTANOOGA, TN
Current Weather

5:53 AM CDT APR 19, 2026
Broken Clouds
48°F
Feels Like: 42°F
Dewpoint: 43°F
Rel. Hum.: 83%
Visibility: 10 miles
Wind: NNW at 14 mph
Pressure: 30.21 inches
Last 72 hours

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DECATUR, TN 37322
Weather Forecast

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Snow Depth pages
TODAY
Sunny. Much cooler with highs in the lower to mid 60s. North winds 5 to 10 mph with gusts up to 25 mph.
TONIGHT
Mostly clear. Lows in the lower 40s. Light winds.
MONDAY
Sunny. Highs in the upper 60s to lower 70s. Northwest winds 10 mph or less.
MONDAY NIGHT
Clear. Lows in the lower 40s. Light winds.
TUESDAY
Sunny. Highs in the mid to upper 70s. Light winds.
TUESDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the upper 40s.
WEDNESDAY
Sunny. Highs in the upper 70s to lower 80s.
WEDNESDAY NIGHT
Mostly clear. Lows in the lower 50s.
THURSDAY
Sunny. Highs in the lower 80s.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
FRIDAY
Mostly sunny. A slight chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.
FRIDAY NIGHT
Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 50 percent.
SATURDAY
Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid to upper 70s. Chance of rain 70 percent.

Visible Weather Satellite
DECATUR, TN 37322
Infrared Weather Satellite
DECATUR, TN 37322
NEXRAD Weather Radar
DECATUR, TN 37322

CHATTANOOGA, TN 3 hourly weather forecast

weather forecast created  6:00 PM MDT  4/18/2026
Sunday
19 APR 2026
DECATUR, TN 37322 weather forecast Day 1, 0 hours 1 AM 56° 53° Mostly Cloudy 66%
RAIN
.5–1 in
0% Thunder
( 10% severe)
N   13 69% 46°
Low 48° DECATUR, TN 37322 weather forecast Day 1, 3 hours 4 AM 50° 45° Overcast N   13 74% 42°
High 68° DECATUR, TN 37322 weather forecast Day 1, 6 hours 7 AM 49° 44° Mostly Cloudy 3%

0% Thunder
( 0% severe)
N   12 68% 39°

Decreasing Clouds



DECATUR, TN 37322 weather forecast Day 1, 9 hours 10 AM 56° 53° Partly Cloudy N   13 38% 31°
DECATUR, TN 37322 weather forecast Day 1, 12 hours 1 PM 64° 63° Clear 0%

0% Thunder
( 0% severe)
N   13 24% 27°
DECATUR, TN 37322 weather forecast Day 1, 15 hours 4 PM 67° 67° Clear NNW   12 22% 27°
DECATUR, TN 37322 weather forecast Day 1, 18 hours 7 PM 63° 63° Clear 0%

0% Thunder
( 0% severe)
NNW   8 26% 28°
DECATUR, TN 37322 weather forecast Day 1, 21 hours 10 PM 54° 54° Clear NNW   3 45% 33°
Monday
20 APR 2026
DECATUR, TN 37322 weather forecast Day 2, 0 hours 1 AM 49° 49° Clear 0%

0% Thunder
( 1% severe)
WSW   1 54% 33°
Low 44° DECATUR, TN 37322 weather forecast Day 2, 3 hours 4 AM 45° 44° Clear SSW   1 68% 35°
High 75° DECATUR, TN 37322 weather forecast Day 2, 6 hours 7 AM 46° 45° Clear 0%

0% Thunder
( 1% severe)
SE   1 68% 36°

Clear



DECATUR, TN 37322 weather forecast Day 2, 9 hours 10 AM 62° 63° Clear WNW   3 39% 37°
DECATUR, TN 37322 weather forecast Day 2, 12 hours 1 PM 70° 70° Clear 0%

0% Thunder
( 4% severe)
NW   8 30% 37°
DECATUR, TN 37322 weather forecast Day 2, 15 hours 4 PM 73° 73° Clear NNW   9 26% 36°
DECATUR, TN 37322 weather forecast Day 2, 18 hours 7 PM 68° 68° Clear 0%

0% Thunder
( 2% severe)
NNW   6 32% 37°
DECATUR, TN 37322 weather forecast Day 2, 21 hours 10 PM 58° 59° Clear N   1 51% 40°

CHATTANOOGA, TN extended weather forecast

Tuesday
21 APR 2026
Wednesday
22 APR 2026
Thursday
23 APR 2026
Friday
24 APR 2026
Saturday
25 APR 2026
Low 48° Low 50° Low 54° Low 57° Low 59°
High 80° High 82° High 85° High 83° High 77°
DECATUR, TN 37322 weather forecast Day 3 DECATUR, TN 37322 weather forecast Day 4 DECATUR, TN 37322 weather forecast Day 5 DECATUR, TN 37322 weather forecast Day 6 DECATUR, TN 37322 weather forecast Day 7
Clear
5% Rain
Clear
8% Rain
Clear
15% Rain
Partly Cloudy
20% Rain
Overcast
56% Rain
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