Our Proprietary 10-Day Forecast

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Current warnings over Rocklin, California
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Rocklin, California red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Rocklin, California red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Placer County, CA

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Rocklin, California

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Rocklin, CA please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Rocklin, CA

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Rocklin, CA, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Rocklin, California

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Placer County, California

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Rocklin, CA Climate Summary

General Climate

    •   Rocklin, CA has a Mediterranean climate, with mild, wet winters and hot, dry summers.
    •   The average annual temperature is 62.3°F (16.8°C).
    •   The average annual precipitation is 26.47 inches (672.3 mm).

Temperature

    •   The warmest month is July, with an average high temperature of 94.6°F (34.8°C) and an average low temperature of 60.8°F (16°C).
    •   The coldest month is December, with an average high temperature of 49.5°F (9.7°C) and an average low temperature of 32.6°F (0.3°C).

Precipitation

    •   The wettest month is January, with an average of 5.16 inches (131.1 mm) of precipitation.
    •   The driest month is July, with an average of 0.04 inches (1 mm) of precipitation.

Snowfall

    •   Rocklin, CA receives an average of 0.4 inches (1 cm) of snow per year.

Sunshine

    •   Rocklin, CA receives an average of 267 sunny days per year.

Humidity

    •   The average annual relative humidity is 66%.

Wind

    •   The average annual wind speed is 6.8 mph (10.9 km/h).

Climate Change

    •   The climate of Rocklin, CA is changing. The average annual temperature has increased by 1.8°F (1°C) since 1895. The average annual precipitation has decreased by 2.5 inches (63.5 mm) since 1895. The number of days with extreme heat has increased since 1895.

Overall

    •   Rocklin, CA has a mild, wet winter and a hot, dry summer. The climate is changing, with the average annual temperature increasing and the average annual precipitation decreasing.

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   Rocklin is home to the Rocklin Nature Preserve, a 300-acre refuge for native plants and wildlife.

    •   The area was once a vast oak woodland, but urbanization has reduced its size.

    •   The preserve supports diverse species, including coyotes, bobcats, and more than 100 bird species.

Science

    •   Rocklin is a hub for high-tech companies, including Intel and Oracle.

    •   The city's proximity to the University of California, Davis, fosters collaboration in research and development.

    •   Rocklin is home to the Folsom Lake College Center for Sustainability, which promotes environmental education and research.

Personalities

  • John Sutter:

    In 1841, Sutter established Sutter's Fort in present-day Sacramento, which played a pivotal role in California's history.

  • Leland Stanford:

    The railroad magnate and founder of Stanford University owned a ranch in Rocklin.

  • William Land:

    A pioneer settler who established the town of Rocklin in 1863, named after his hometown of Rocklin, Illinois.

    • Tourist Attractions
    1.Thunder Valley Casino Resort

    Located just outside of Rocklin, this casino resort offers a variety of gaming options, dining, entertainment, and a hotel.

    2.William Land Park

    This large park in Sacramento, just a short drive from Rocklin, features a zoo, an arboretum, a golf course, and a lake.

    3.Old Sacramento

    This historic district in Sacramento is home to a variety of shops, restaurants, and museums.

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