National Weather Service Forecast for: 2 Miles NW Rancho Cucamonga CA
Issued by: National Weather Service San Diego, CA
Updated: 8:38 pm PDT Jun 29, 2026
 
Tonight

Tonight: Patchy drizzle after 2am.  Patchy fog after 11pm.  Otherwise, increasing clouds, with a low around 55. West wind 5 to 10 mph.
Patchy Fog
then Patchy
Drizzle and
Patchy Fog
Tuesday

Tuesday: Patchy drizzle and fog before 11am.  Mostly cloudy through mid morning, then gradual clearing, with a high near 75. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Patchy
Drizzle and
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Increasing clouds, with a low around 55. West wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 20 mph.
Increasing
Clouds

Wednesday

Wednesday: Patchy fog before 11am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 78. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy Fog
then Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 55. West wind 5 to 10 mph becoming light  after midnight.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 80.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 56.
Mostly Clear

Friday

Friday: Sunny, with a high near 83.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 58.
Mostly Clear

Lo 55 °F Hi 75 °F Lo 55 °F Hi 78 °F Lo 55 °F Hi 80 °F Lo 56 °F Hi 83 °F Lo 58 °F

 

Tonight
 
Patchy drizzle after 2am. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 55. West wind 5 to 10 mph.
Tuesday
 
Patchy drizzle and fog before 11am. Mostly cloudy through mid morning, then gradual clearing, with a high near 75. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
 
Increasing clouds, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Wednesday
 
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 78. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
 
Mostly clear, with a low around 55. West wind 5 to 10 mph becoming light after midnight.
Thursday
 
Sunny, with a high near 80.
Thursday Night
 
Mostly clear, with a low around 56.
Friday
 
Sunny, with a high near 83.
Friday Night
 
Mostly clear, with a low around 58.
Independence Day
 
Mostly sunny, with a high near 86.
Saturday Night
 
Mostly clear, with a low around 60.
Sunday
 
Sunny, with a high near 87.
Sunday Night
 
Mostly clear, with a low around 61.
Monday
 
Sunny, with a high near 88.

 

Forecast from NOAA-NWS for 2 Miles NW Rancho Cucamonga CA.