National Weather Service Forecast for: 3 Miles SE Saint Bethlehem TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Aug 20, 2026
 
Overnight

Overnight: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 71. North wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Heavy Rain

 Thursday

Thursday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 103. South wind around 5 mph becoming west northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely then
Chance
T-storms
 Thursday
Night
Thursday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 69. North wind around 5 mph becoming calm.
Partly Cloudy
then Patchy
Fog
 Friday

Friday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming north northwest around 5 mph in the afternoon.
Patchy Fog
then Sunny

 Friday
Night
Friday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 66. North wind around 5 mph becoming calm in the evening.
Patchy Fog

 Saturday

Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 90. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Areas Fog
then Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 65. North northwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 87. Light north northeast wind becoming north northwest 5 to 10 mph in the afternoon.
Sunny

 Sunday
Night
Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Slight Chance
Showers
Lo 71 °F Hi 89 °F Lo 69 °F Hi 89 °F Lo 66 °F Hi 90 °F Lo 65 °F Hi 87 °F Lo 63 °F

Severe Thunderstorm Watch
 

Overnight
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 71. North wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 103. South wind around 5 mph becoming west northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Patchy fog after midnight. Otherwise, partly cloudy, with a low around 69. North wind around 5 mph becoming calm.
Friday
 
 Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
 
 Patchy fog after 11pm. Otherwise, mostly clear, with a low around 66. North wind around 5 mph becoming calm in the evening.
Saturday
 
 Areas of fog before 8am. Otherwise, sunny, with a high near 90. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 65. North northwest wind around 5 mph becoming calm in the evening.
Sunday
 
 Sunny, with a high near 87. Light north northeast wind becoming north northwest 5 to 10 mph in the afternoon.
Sunday Night
 
 A 20 percent chance of showers before 1am. Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Monday
 
 Mostly sunny, with a high near 86.
Monday Night
 
 A 20 percent chance of showers. Partly cloudy, with a low around 64.
Tuesday
 
 A 20 percent chance of showers. Sunny, with a high near 88.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Wednesday
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91.

 

Forecast from NOAA-NWS for 3 Miles SE Saint Bethlehem TN.