Tuesday, Sept 25, 2018




Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains.

Good Morning.
This morning we have onshore flow along with a weak Marine layer (light fog) moving into the IE. Today will be about the same as yesterday as far a temperatures go. There will be a NE winds develop later today as High pressure builds across most of California. Temperatures will be on the rise through Thursday as High pressure takes hold locally. A Low level area of Low pressure will help to spin up gusty NE winds tonight and Wednesday, then returning to the SE through Friday. The weekend will be cooler a closed Low that has been sitting offshore, moves through NorCal. This will bring cooler temperatures, and gusty SW winds along with a deeper Marine layer to SoCal. Then things get interesting. The current models show a Tropical System moving North along Baja early next week. Also a Trough is forecast to slide South along the West Coast with the two meeting over SoCal. Monday through Thursday it looks like we will have several chances for some precipitation locally as the Tropical Storm moves through Monday/Tuesday and a Trough follows Wednesday. So hopefully this will come to fruition. Keep your fingers crossed. We do need the rain. Have a good day today and enjoy the great Mountain weather.

Yesterday’s High and Low temperatures were:
Crestline-79/51*, Twin Peaks-73/61*, Lake Arrowhead-79/59*, Running Springs-74/59*, Big Bear-74/38*, San Bernardino-85/59*.
Average local temps for today are: 74/48*. MIN-36*(2007) MAX-87*-(1960)

Forecast Temperatures for the next three days:

Crestline, Twin Peaks, Lake Arrowhead:

Tues-77-82*/56-64*, Wednesday-79-84*/55-64*,Thur-80-86*/58-65*, Fri-78-84*/55-60*.

Big Bear, GVL, Running Springs:

Tues-74-79*/42-50*, Wed-74-79*/45-55*,Thur-75-79*/40-50*.

San Bernardino:
Tues-88-94*/59-64*, Wed-95-99*/60-65*,Thur-95-100*/60-65*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page to access their website.

This years rainfall total is at  00.04″  at my location.

Season snow total at my location : 0.00″

The total for the (2017-2018) Rainfall Year was, rainfall/melted snow total-19.57″ /4.25″ of snow.

The total for the (2016-2017) Rainfall Year was, rainfall/melted snow total-45.90″

The total for the (2015-2016) Rainfall Year was,rainfall/melted snow total- 32.38″

All measurements are taken at my location on the South side of Lake Gregory.
Normal for the Crestline area is around ~40.00″.

The Rainfall year starts on July 01, and ends on June 30th.

To all who have contributed to the costs of maintaining this website.

I really appreciate your support.

 Thank you.

Ron Chalfant


Ambient weather has several rain  gauges available as well as a variety of Weather Stations.  On their website you will be able to find all of your weather related needs and software, to put your personal weather data online. Click on the logo to access their website.

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For California Fire info inciweb.org

*RC. The information on this site is determined from many sources and is the most probable solution for our local area.
Weather is a dynamic force and can change in a brief period of time.

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