National Weather Service Forecast for: Mount Shasta CA
Issued by: National Weather Service Medford, OR
Updated: 12:06 am PDT Jun 22, 2026
 
Today

Today: Sunny, with a high near 90. North northwest wind around 5 mph becoming calm in the morning.
Sunny

 Tonight

Tonight: Clear, with a low around 56. Northwest wind around 6 mph becoming calm after midnight.
Clear

 Tuesday

Tuesday: A slight chance of thunderstorms after 2pm. Sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
 Tuesday
Night
Tuesday Night: A slight chance of thunderstorms before 8pm. Mostly clear, with a low around 55. South southeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Slight Chance
T-storms then
Clear
 Wednesday

Wednesday: A slight chance of thunderstorms after 11am. Sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Slight Chance
T-storms
 Wednesday
Night
Wednesday Night: A slight chance of thunderstorms before 8pm. Mostly clear, with a low around 55. Chance of precipitation is 20%.
Slight Chance
T-storms then
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 86.
Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 53.
Partly Cloudy

 Friday

Friday: A slight chance of rain. Mostly sunny, with a high near 77.
Slight Chance
Rain
Hi 90 °F Lo 56 °F Hi 88 °F Lo 55 °F Hi 86 °F Lo 55 °F Hi 86 °F Lo 53 °F Hi 77 °F

Heat Advisory
 

Today
 
 Sunny, with a high near 90. North northwest wind around 5 mph becoming calm in the morning.
Tonight
 
 Clear, with a low around 56. Northwest wind around 6 mph becoming calm after midnight.
Tuesday
 
 A slight chance of thunderstorms after 2pm. Sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
 
 A slight chance of thunderstorms before 8pm. Mostly clear, with a low around 55. South southeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Wednesday
 
 A slight chance of thunderstorms after 11am. Sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
 
 A slight chance of thunderstorms before 8pm. Mostly clear, with a low around 55. Chance of precipitation is 20%.
Thursday
 
 Sunny, with a high near 86.
Thursday Night
 
 Partly cloudy, with a low around 53.
Friday
 
 A slight chance of rain. Mostly sunny, with a high near 77.
Friday Night
 
 Mostly clear, with a low around 48.
Saturday
 
 Sunny, with a high near 73.
Saturday Night
 
 Clear, with a low around 44.
Sunday
 
 Sunny, with a high near 74.

 

Forecast from NOAA-NWS for Mount Shasta CA.