The long-range forecast for San Bernardino predicts a heatwave, with temperatures reaching up to 34°, significantly higher than typical for San Bernardino for this time of the year and 6.8 °C above the historical average.
Select a month and click on a day for more information:
Wednesday
Apr 1
15° / 9°
Thursday
Apr 2
14° / 7°
Friday
Apr 3
18° / 5°
Saturday
Apr 4
21° / 6°
Sunday
Apr 5
21° / 8°
Monday
Apr 6
22° / 8°
Tuesday
Apr 7
23° / 9°
Wednesday
Apr 8
23° / 10°
Thursday
Apr 9
26° / 11°
Friday
Apr 10
27° / 12°
Saturday
Apr 11
25° / 12°
Sunday
Apr 12
22° / 11°
Monday
Apr 13
19° / 8°
Tuesday
Apr 14
21° / 8°
Wednesday
Apr 15
22° / 9°
Thursday
Apr 16
24° / 10°
Friday
Apr 17
22° / 10°
Saturday
Apr 18
22° / 11°
Sunday
Apr 19
23° / 10°
Monday
Apr 20
23° / 11°
Tuesday
Apr 21
25° / 11°
Wednesday
Apr 22
24° / 12°
Thursday
Apr 23
25° / 12°
Friday
Apr 24
25° / 11°
Saturday
Apr 25
24° / 12°
Sunday
Apr 26
22° / 11°
Monday
Apr 27
26° / 12°
Tuesday
Apr 28
27° / 13°
Wednesday
Apr 29
28° / 14°
Thursday
Apr 30
27° / 15°
San Bernardino 30 days weather forecast
Check out our estimated 30 days weather forecast for San Bernardino, this data is based on the average weather in San Bernardino in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for San Bernardino next to the desired date.