National Weather Service Forecast for: Lebanon OR
Issued by: National Weather Service Portland, OR
Updated: 4:41 am PDT May 26, 2026
 
Today

Today: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 66. Calm wind becoming north northwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Chance
Showers

 Tonight

Tonight: A 50 percent chance of showers, mainly before 2am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 46. North northwest wind 5 to 7 mph becoming calm in the evening.
Chance
Showers then
Slight Chance
Showers and
Patchy Fog
 Wednesday

Wednesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 75. Calm wind becoming north 5 to 7 mph in the afternoon.
Patchy Fog
then Mostly
Sunny

 Wednesday
Night
Wednesday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 51. North wind 5 to 7 mph becoming calm in the evening.
Partly Cloudy
then Patchy
Fog

 Thursday

Thursday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 77. Light and variable wind.
Patchy Fog
then Mostly
Sunny

 Thursday
Night
Thursday Night: A chance of showers before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Chance
Showers

 Friday

Friday: A 30 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 65.
Chance Rain


 Friday
Night
Friday Night: Mostly cloudy, with a low around 44.
Mostly Cloudy


 Saturday

Saturday: Mostly sunny, with a high near 66.
Mostly Sunny
Hi 66 °F Lo 46 °F Hi 75 °F Lo 51 °F Hi 77 °F Lo 50 °F Hi 65 °F Lo 44 °F Hi 66 °F

 

Today
 
 A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 66. Calm wind becoming north northwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Tonight
 
 A 50 percent chance of showers, mainly before 2am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 46. North northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 8am. Otherwise, partly sunny, with a high near 75. Calm wind becoming north 5 to 7 mph in the afternoon.
Wednesday Night
 
 Patchy fog after 5am. Otherwise, partly cloudy, with a low around 51. North wind 5 to 7 mph becoming calm in the evening.
Thursday
 
 Patchy fog before 7am. Otherwise, mostly sunny, with a high near 77. Light and variable wind.
Thursday Night
 
 A chance of showers before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Friday
 
 A 30 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 65.
Friday Night
 
 Mostly cloudy, with a low around 44.
Saturday
 
 Mostly sunny, with a high near 66.
Saturday Night
 
 Mostly clear, with a low around 42.
Sunday
 
 Sunny, with a high near 70.
Sunday Night
 
 Mostly clear, with a low around 45.
Monday
 
 Sunny, with a high near 82.

 

Forecast from NOAA-NWS for Lebanon OR.