Crestline, CA Monthly Weather

San Bernardino County5:23 PM PDT34.24°N, 117.29°WElevation 4,613 ft
← September

October 2026

Sun
Mon
Tue
Wed
Thu
Fri
Sat
199°/62°
2104°/64°
3102°/71°
4102°/73°
5102°/71°
6102°/73°
7102°/73°
899°/68°
993°/66°
1090°/69°
1172°/57°0.85 in
1264°/54°0.07 in
1373°/51°
1482°/50°
1586°/55°
1691°/70°
1788°/62°
18
19
20
21
22
23
24 Sunny 58°/44°
25 Sunny 61°/47°
26 Sunny 61°/47°
27 Sunny 61°/47°
28 Mostly Sunny 60°/47°
29 Mostly Sunny 55°/44°
30 Chance Rain Showers 51°/–
31 Heavy rain 51°/44°
Average high91°
Average low64°
Warmest / coldest104° / 50°
Precipitation0.92 in (normal 0.00 in to date)
Record high today98° (1968)
Record low today38° (1953)

Observed: San Bernardino International Airport, 17 km away, records since 1949. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.