National Weather Service Forecast for: Spanish Fork UT
Issued by: National Weather Service Salt Lake City, UT
Updated: 1:51 pm MDT Jun 19, 2026
 
Tonight

Tonight: A slight chance of thunderstorms between 9pm and midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 64. Southwest wind around 7 mph becoming southeast after midnight.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Partly Cloudy
Saturday

Saturday: Sunny, with a high near 92. East southeast wind 8 to 13 mph becoming west in the afternoon.
Sunny

Saturday
Night
Saturday Night: A slight chance of thunderstorms before 9pm.  Partly cloudy, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable  after midnight.  Chance of precipitation is 10%.
Slight Chance
T-storms then
Mostly Clear
Sunday

Sunday: Sunny, with a high near 89. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Sunny

Sunday
Night
Sunday Night: Mostly clear, with a low around 58. North northwest wind 5 to 8 mph becoming calm  after midnight.
Mostly Clear

Monday

Monday: Sunny, with a high near 94.
Sunny

Monday
Night
Monday Night: Clear, with a low around 59.
Clear

Tuesday

Tuesday: Sunny, with a high near 99.
Sunny

Tuesday
Night
Tuesday Night: Clear, with a low around 63.
Clear

Lo 64 °F Hi 92 °F Lo 58 °F Hi 89 °F Lo 58 °F Hi 94 °F Lo 59 °F Hi 99 °F Lo 63 °F

Fire Weather Watch
 

Tonight
 
A slight chance of thunderstorms between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 64. Southwest wind around 7 mph becoming southeast after midnight. Chance of precipitation is 20%.
Saturday
 
Sunny, with a high near 92. East southeast wind 8 to 13 mph becoming west in the afternoon.
Saturday Night
 
A slight chance of thunderstorms before 9pm. Partly cloudy, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 10%.
Sunday
 
Sunny, with a high near 89. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Sunday Night
 
Mostly clear, with a low around 58. North northwest wind 5 to 8 mph becoming calm after midnight.
Monday
 
Sunny, with a high near 94.
Monday Night
 
Clear, with a low around 59.
Tuesday
 
Sunny, with a high near 99.
Tuesday Night
 
Clear, with a low around 63.
Wednesday
 
Sunny and hot, with a high near 101.
Wednesday Night
 
Mostly clear, with a low around 64.
Thursday
 
Sunny, with a high near 98.
Thursday Night
 
Mostly clear, with a low around 63.
Friday
 
Mostly sunny, with a high near 96.

 

Forecast from NOAA-NWS for Spanish Fork UT.