Knoxville, US-Tennessee – Weather Tomorrow April 21
Tuesday, April 21
Night
02:00am – 08:00am
6°
8°
43°
46°
fair
ENE 5 km/h
3 mph
Morning
08:00am – 02:00pm
11°
21°
52°
70°
mostly clear
NE 6 km/h
4 mph
Afternoon
02:00pm – 08:00pm
19°
22°
66°
72°
partly cloudy
SW 12 km/h
8 mph
Evening
08:00pm – 02:00am
14°
17°
57°
63°
partly cloudy
SSW 13 km/h
8 mph
Weather Tomorrow – Summary
Tomorrow, on Tuesday morning mostly clear, during the day partly cloudy, evening partly cloudy. Temperature: 6° to 22°C43° to 72°F. Wind: 5 to 13 km/h3 to 8 mph.
Data source: MET Norway — Last updated: Apr 20, 2026, 11:06 UTC