This year's long-range forecast for Rancho Cucamonga reveals higher temperatures, peaking at 34°, indicative of a warming trend against the historical average.
Select a month and click on a day for more information:
Friday
May 1
25° / 13°
Saturday
May 2
23° / 12°
Sunday
May 3
23° / 11°
Monday
May 4
21° / 12°
Tuesday
May 5
20° / 12°
Wednesday
May 6
23° / 12°
Thursday
May 7
33° / 12°
Friday
May 8
28° / 14°
Saturday
May 9
30° / 15°
Sunday
May 10
32° / 16°
Monday
May 11
34° / 18°
Tuesday
May 12
31° / 17°
Wednesday
May 13
29° / 16°
Thursday
May 14
29° / 16°
Friday
May 15
28° / 15°
Saturday
May 16
25° / 14°
Sunday
May 17
23° / 14°
Monday
May 18
26° / 15°
Tuesday
May 19
27° / 15°
Wednesday
May 20
28° / 15°
Thursday
May 21
27° / 13°
Friday
May 22
26° / 13°
Saturday
May 23
26° / 13°
Sunday
May 24
25° / 14°
Monday
May 25
25° / 13°
Tuesday
May 26
26° / 13°
Wednesday
May 27
26° / 13°
Thursday
May 28
26° / 14°
Friday
May 29
27° / 13°
Saturday
May 30
28° / 15°
Sunday
May 31
27° / 15°
Rancho Cucamonga 30 days weather forecast
Check out our estimated 30 days weather forecast for Rancho Cucamonga, this data is based on the average weather in Rancho Cucamonga in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Rancho Cucamonga next to the desired date.