Eastern valley, foothills, & west slope

Includes, but not limited to: Sacramento, Fair Oaks, Orangevale, Gold River, Rancho Cordova, Folsom, El Dorado Hills, Roseville, Rocklin, Granite Bay, Loomis, Newcastle, Auburn, Grass Valley, Foresthill, Meadow Vista, Colfax, Cool, Coloma, Placerville, Cameron Park, Elk Grove, Plymouth, Jackson, Ione, Valley Springs, San Andreas, Sonora, Farmington, Yuba City, Oroville, Chico, & Paradise. Cities & towns between and within 10 miles of each aforementioned listed location can be assumed in this forecast.

Monday, June 27

 High temperatures: 93 – 103 °F

Tuesday, June 28

 High temperatures: 93 – 103 °F

Wednesday, June 29

 High temperatures: 91 – 99 °F

Thursday, June 30

 High temperatures: 87 – 93 °F

Friday, July 1

 High temperatures: 82 – 89 °F

Saturday, July 2

 High temperatures: 82 – 87 °F

Saturday, July 3

 High temperatures: 84 – 90 °F

Sunday, July 4

 High temperatures: 78 – 85 °F

Forecast details (6/27/22)

A fairly usual week ahead, with the first few weekdays set to see a continued streak of hot weather, with a slow downward trend in temperatures from the middle of the week through the holiday weekend. Activity Monday – Wednesday will primarily be in the morning & evening hours, given the hot daytime temperatures expected. Wednesday starts to see a bit of relief, with highs likely staying under 100 in quite a few valley locations, though those double-0’s will still likely pop up here and there. Thursday into the weekend, a slow reversal will begin to occur in the most ideal times for rattlesnake activity.

On Thursday, activity will still likely be mostly in the morning & evening, though by Friday into the weekend, activity should begin to return to most daylight hours (though, some early evening activity will still occur). It looks like the slow (overall) temperature decline will continue on July 4th, meaning most snake activity will likely occur with the sun up or close to sunrise/sunset. As of this update, there’s currently strong agreement that after the 4th, hot weather will return to interior northern California, likely meaning a switch back to morning & overnight activity will loom.

Date created or last updated: Monday, 6/27/2022, at 1:45 AM

Next update: 7/3/2022 – 7/5/2022

How the forecast works

Snake activity is heavily driven by weather conditions, not just large-scale seasonal changes such as the shift from Winter to Spring or Summer to Fall. While time of year has an impact on snake activity, it’s primarily driven by various meteorological factors including, but not limited to, surface/air temperature, cloud cover, humidity, and more.

Placer Snake Removal’s weekly snake activity conditions forecast combines large-scale seasonal trends, in addition to & perhaps more importantly, daily weather conditions. The forecast breaks the day up into 3 pieces: morning, afternoon, and evening. Each day chunk includes a forecast of the expected condition level of quality for snakes to be active. A conditions forecast of “Low” means that the conditions are not expected to be particularly ideal for rattlesnakes to be active for long periods of time at the surface. A conditions forecast of “High” means forecast conditions are likely to be very supportive of rattlesnake activity at the surface.

This information is meant to be a more broad analysis of each day, thus even during periods of “low” conditions, it’s entirely possible a snake could be up at the surface. That said, the probability of more snakes spending longer periods of time at the surface go up during forecast “high” quality conditions. Local microclimates also play a big role in some places that are simply to localized to factor into a forecast built for a wider audience.

Do not rely on information from these forecasts for personal safety & always practice venomous snake awareness/safety no matter temperature or weather.

Forecast key & description

Low – conditions not super ideal for surface activity.

Low medium – conditions may support small amounts of activity.

Medium – conditions supportive of some activity.

Mediumhigh – conditions supportive of activity.

High – conditions very supportive & comfortable for activity.

Forecast Zone Boundaries