Lascassas, TN Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Lascassas, TN.

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Current Conditions — Lascassas, TN

SMYRNA (KMQY)

Clear

53.6 F
Humidity:71%
Wind Speed:S 4.6 mph
Barometer:30.18 in
Dewpoint:44.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 03:00 AM CDT
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5-Day Forecast — Lascassas, TN

Wednesday

High 82 °F
Forecast Missing
Wednesday
Night
Low 53 °F
Mostly Clear
Thursday

High 84 °F
Mostly Sunny
Thursday
Night
Low 59 °F
Partly Cloudy
Friday

High 82 °F
Chance of T-storms
Friday
Night
Low 60 °F
T-storms
Saturday

High 77 °F
T-storms
Saturday
Night
Low 55 °F
Slight Chance of Showers
Sunday

High 82 °F
Slight Chance of Showers

Detailed Forecast — Lascassas, TN

Wednesday
Sunny. High near 82°F. Wind 2 to 8 mph, with gusts as high as 14 mph.
Wednesday Night
Mostly Clear. Low around 53°F. Wind 1 to 3 mph, with gusts as high as 8 mph.
Thursday
Mostly Sunny. High near 84°F. Wind 3 to 9 mph, with gusts as high as 16 mph.
Thursday Night
Partly Cloudy. Low around 59°F. Wind 3 to 5 mph, with gusts as high as 12 mph.
Friday
Chance of Thunderstorms. High near 82°F. Wind 7 to 13 mph, with gusts as high as 20 mph.
Friday Night
Thunderstorms. Low around 60°F. Wind around 2 mph, with gusts as high as 7 mph.
Saturday
Thunderstorms. High near 77°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Saturday Night
Slight Chance of Showers. Low around 55°F.
Sunday
Slight Chance of Showers. High near 82°F. Wind 3 to 5 mph, with gusts as high as 8 mph.
Sunday Night
Chance of Showers. Low around 59°F. Wind around 2 mph, with gusts as high as 9 mph.
Monday
Thunderstorms Likely. High near 80°F. Wind 14 to 16 mph, with gusts as high as 24 mph.
Monday Night
Rain Likely. Low around 62°F. Wind around 9 mph, with gusts as high as 18 mph.
Tuesday
Chance of Scattered Thunderstorms. High near 80°F. Wind 6 to 12 mph, with gusts as high as 18 mph.
TN Radar
Current Radar • TN
Day 1 Outlook • April 22, 2026

Observation History — Lascassas, TN

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)
03:00 AM CDT S 4.6 10.00 Clear -- 53.6 44.6 71% NA NA 30.18 1022.0
02:45 AM CDT 5.7 10.00 Clear -- 55.4 44.6 67% NA NA 30.18 1022.0
02:40 AM CDT 5.7 10.00 Clear -- 55.4 44.6 67% NA NA 30.18 1022.0
02:35 AM CDT S 4.6 10.00 Clear -- 53.6 44.6 71% NA NA 30.18 1022.0
02:25 AM CDT 4.6 10.00 Clear -- 55.4 44.6 67% NA NA 30.18 1022.0
02:20 AM CDT 4.6 10.00 Clear -- 55.4 44.6 67% NA NA 30.18 1022.0
02:10 AM CDT S 4.6 10.00 Clear -- 53.6 44.6 71% NA NA 30.18 1022.0
02:00 AM CDT S 3.4 10.00 Clear -- 53.6 44.6 71% NA NA 30.18 1022.0
01:50 AM CDT 0.0 10.00 Clear -- 53.6 44.6 71% NA NA 30.18 1022.0
01:45 AM CDT 0.0 10.00 Clear -- 53.6 44.6 71% NA NA 30.18 1022.0
01:35 AM CDT S 5.7 10.00 Clear -- 55.4 44.6 67% NA NA 30.19 1022.4
01:25 AM CDT S 5.7 10.00 Clear -- 55.4 44.6 67% NA NA 30.19 1022.4
01:10 AM CDT S 5.7 10.00 Clear -- 57.2 44.6 63% NA NA 30.19 1022.4
01:05 AM CDT S 6.9 10.00 Clear -- 57.2 44.6 63% NA NA 30.20 1022.7
01:00 AM CDT S 6.9 10.00 Clear -- 57.2 44.6 63% NA NA 30.20 1022.7
12:50 AM CDT 5.7 10.00 Clear -- 57.2 44.6 63% NA NA 30.20 1022.7
12:35 AM CDT 4.6 10.00 Clear -- 57.2 44.6 63% NA NA 30.20 1022.7
12:30 AM CDT 4.6 10.00 Clear -- 57.2 44.6 63% NA NA 30.20 1022.7
12:25 AM CDT S 4.6 10.00 Clear -- 57.2 44.6 63% NA NA 30.20 1022.7
11:56 PM CDT S 4.7 10.00 Clear -- NULL 45.0 % NA NA 30.20 1022.7
11:45 PM CDT S 3.4 10.00 Clear -- 59.0 44.6 59% NA NA 30.21 1023.0
11:40 PM CDT 3.4 10.00 Clear -- 62.6 44.6 52% NA NA 30.21 1023.0
11:35 PM CDT 4.6 10.00 Clear -- 62.6 44.6 52% NA NA 30.21 1023.0
11:25 PM CDT 4.6 6.00 Haze -- 60.8 44.6 55% NA NA 30.21 1023.0

Regional Weather Observation

SMYRNA (KMQY)

Clear
53.6 F

NASHVILLE (KBNA)

Clear
55.4 F

LEBANON (KM54)

Clear
57.2 F

NASHV/JC TUNE (KJWN)

Clear
59.0 F

GALLATIN (KXNX)

Clear
51.8 F

PORTLAND (K1M5)

Clear
55.4 F
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