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Day 1 Outlook • April 16, 2026
Day 2 Outlook • April 17, 2026
Day 3 Outlook • April 18, 2026
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dBZ 5
75

Hazardous Weather Conditions

  • No active alerts for CASTALIAN SPRING, TENNESSEE

Current Conditions: CASTALIAN SPRING, TENNESSEE

PORTLAND (K1M5)

Cloudy

66.2 F
Humidity:78%
Wind Speed:SW 5.7 mph
Barometer:30.02 in
Dewpoint:59.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 16 2026, 07:15 AM CDT
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5 Day Forecast for CASTALIAN SPRING, TENNESSEE (37031)

Thursday

High 82 °F
T-storms Likely
Thursday
Night
Low 59 °F
Chance of Scattered T-storms
Friday

High 86 °F
Partly Sunny
Friday
Night
Low 66 °F
Partly Cloudy
Saturday

High 82 °F
T-storms Likely
Saturday
Night
Low 44 °F
Rain Likely
Sunday

High 66 °F
Sunny
Sunday
Night
Low 39 °F
Clear
Monday

High 69 °F
Mostly Sunny

Detailed Forecast for CASTALIAN SPRING, TENNESSEE (37031)

Thursday
Thunderstorms Likely. High near 82°F. Wind 5 to 10 mph, with gusts as high as 17 mph.
Thursday Night
Chance of Scattered Thunderstorms. Low around 59°F. Wind 1 to 3 mph, with gusts as high as 8 mph.
Friday
Partly Sunny. High near 86°F. Wind 2 to 6 mph, with gusts as high as 12 mph.
Friday Night
Partly Cloudy. Low around 66°F. Wind 3 to 5 mph, with gusts as high as 12 mph.
Saturday
Thunderstorms Likely. High near 82°F. Wind 9 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Rain Likely. Low around 44°F. Wind around 7 mph, with gusts as high as 16 mph.
Sunday
Sunny. High near 66°F. Wind 6 to 10 mph, with gusts as high as 17 mph.
Sunday Night
Clear. Low around 39°F. Wind around 2 mph, with gusts as high as 7 mph.
Monday
Mostly Sunny. High near 69°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Monday Night
Partly Cloudy. Low around 46°F. Wind around 2 mph, with gusts as high as 6 mph.
Tuesday
Partly Sunny. High near 77°F. Wind 5 to 8 mph, with gusts as high as 16 mph.
Tuesday Night
Partly Cloudy. Low around 51°F. Wind around 3 mph, with gusts as high as 8 mph.
Wednesday
Partly Sunny. High near 78°F. Wind 6 to 9 mph, with gusts as high as 16 mph.
TN Radar
Current Radar • TN
Day 1 Outlook • April 16, 2026

Observation History for CASTALIAN SPRING, TENNESSEE

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
07:15 AM CDT SW 5.7 10.00 Cloudy -- 66.2 59.0 78% NA NA 30.02 1016.6
06:55 AM CDT 8.1 10.00 Mostly Cloudy -- 66.2 59.0 78% NA NA 30.00 1015.9
06:35 AM CDT S 10.3 10.00 Mostly Cloudy -- 64.4 57.2 77% NA NA 29.99 1015.6
06:15 AM CDT S 11.4 10.00 Partly Cloudy -- 64.4 57.2 77% NA NA 29.99 1015.6
05:55 AM CDT S 11.5 10.00 Partly Cloudy -- 64.4 57.2 77% NA NA 29.98 1015.2
05:35 AM CDT S 10.4 10.00 Cloudy -- 64.4 57.2 77% NA NA 29.99 1015.6
05:15 AM CDT S 9.2 10.00 Cloudy -- 64.4 57.2 77% NA NA 29.99 1015.6
04:55 AM CDT S 8.1 10.00 Cloudy -- 64.4 57.2 77% NA NA 29.98 1015.2
04:35 AM CDT 10.00 Cloudy -- NULL % NA NA M
04:15 AM CDT S 9.2 10.00 Cloudy -- 64.4 55.4 73% NA NA 29.98 1015.2
03:55 AM CDT 8.1 10.00 Cloudy -- 66.2 55.4 68% NA NA 29.98 1015.2
03:35 AM CDT 9.2 10.00 Cloudy -- 66.2 55.4 68% NA NA 29.98 1015.2
03:15 AM CDT 9.2 10.00 Mostly Cloudy -- 64.4 55.4 73% NA NA 29.98 1015.2
02:55 AM CDT S 9.2 10.00 Mostly Clear -- 66.2 55.4 68% NA NA 29.98 1015.2
02:35 AM CDT 8.1 10.00 Clear -- 66.2 53.6 64% NA NA 29.97 1014.9
02:15 AM CDT S 9.2 10.00 Clear -- 64.4 53.6 68% NA NA 29.97 1014.9
01:55 AM CDT S 10.4 10.00 Mostly Clear -- 66.2 53.6 64% NA NA 29.97 1014.9
01:35 AM CDT 9.2 10.00 Mostly Clear -- 66.2 53.6 64% NA NA 29.98 1015.2
01:15 AM CDT 9.2 10.00 Clear -- 66.2 53.6 64% NA NA 29.98 1015.2
12:55 AM CDT 9.2 10.00 Clear -- 68.0 53.6 60% NA NA 29.99 1015.6
12:35 AM CDT 10.00 Clear -- NULL % NA NA M
12:15 AM CDT 8.1 G 13.8 10.00 Clear -- 68.0 53.6 60% NA NA 29.99 1015.6
11:55 PM CDT 8.1 10.00 Clear -- 66.2 53.6 64% NA NA 29.99 1015.6
11:35 PM CDT 6.9 10.00 Clear -- 68.0 53.6 60% NA NA 29.99 1015.6

Regional Weather Observation

PORTLAND (K1M5)

Cloudy
66.2 F

GALLATIN (KXNX)

Cloudy
NULL F

SPINGFIELD (KM91)

Cloudy
68.0 F

BOWLING GREE (KBWG)

Mostly Cloudy
69.8 F

LEBANON (KM54)

Cloudy
68.0 F

NASHVILLE (KBNA)

Mostly Clear
69.8 F
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