Current Weather in Alta Loma, CA

Updated: Sun Oct 18th 2026 1:45 PM PDT
Sunny

83°F 29°C

Feels Like 78°F / 26°C

Alta Loma, CA  weather condition is Sunny and 83°F.

Today's Weather in Alta Loma,CA

The current weather in Alta Loma CA as of 1:45 PM PDT on Sun Oct 18th 2026, has a sky condition of Sunny with the visibility of 6 mile(s) and the UV index at 6. It is 83 degrees fahrenheit but feels like 78 degrees with a forecasted high of 85 and low of 71. The barometric pressure is 29.94 - measured by inches of mercury - and is falling since its last observation. The humidity is 15 percent that's falling since the last report, with a dew point of 31 degrees fahrenheit which is rising. Wind direction is from the South-Southeast at 3.1 miles per hour, gusting at 4.3 miles per hour. Sunrise was at 6:58 AM and Sunset is at 6:12 PM. The moon phase is a First Quarter moon rising at 2:26 PM with 58% illumination. Thank you for listening to the weather report from LocalConditions.com!

Listen to this weather report - press Read

  • Barometer 29.94 inHg. falling
  • Humidity 15% falling
  • Heat Index 80°F
  • Wind from SSE. 3.1 mph
  • Wind Gust 4.3 miles per hour
  • Wind Chill 83°F
  • UV Index 6
  • Dew Point 31°F rising
  • Visibility 6 mi.
  • Sunrise 6:58 AM
  • Sunset 6:12 PM
  • Moonrise 2:26 PM
  • Moonset Not Observable
  • Moon Phase First Quarter Moon 58%

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Hourly Forecast - Next 8 hours

10 Day Forecast

Sunny

Sunny with a high of 85°F and a low of 71°F. Winds will be light at 10mph at times. The air is quite dry with humidity levels below 30%.

Temperature Humidity Rainfall Snow Wind
Hi 85° | Lo 71° 23% 0% 0% 9.8 mph

Sunny

Sunny with a high of 84°F and a low of 71°F. 1% possible chance of rain predicted. Winds will be moderate, blowing around 11mph. Humidity levels are comfortable, sitting around 32%.

Temperature Humidity Rainfall Snow Wind
Hi 84° | Lo 71° 32% 1% 0% 10.7 mph

Sunny

Sunny with a high of 83°F and a low of 69°F. 1% possible chance of rain predicted. Winds will be moderate, blowing around 14mph. Humidity levels are comfortable, sitting around 43%.

Temperature Humidity Rainfall Snow Wind
Hi 83° | Lo 69° 43% 1% 0% 13.4 mph

Sunny

Sunny with a high of 80°F and a low of 63°F. Probable rainfall forecasted, having a 60% chance with an estimated 0.39in. Winds will be moderate, blowing around 20mph. Humidity levels are comfortable, sitting around 53%.

Temperature Humidity Rainfall Snow Wind
Hi 80° | Lo 63° 53% 60% | est. 0.39in 0% 19.5 mph

Scattered Showers

Scattered Showers with a high of 70°F and a low of 62°F. Probable rainfall forecasted, having a 74% chance with an estimated 0.5in. Winds will be moderate, blowing around 14mph. Humidity levels are comfortable, sitting around 60%.

Temperature Humidity Rainfall Snow Wind
Hi 70° | Lo 62° 60% 74% | est. 0.5in 0% 13.2 mph

Weather Radar Map

Live Alta Loma, CA weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Thursday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

 

The current temperature today is 83°F. The morning temperature of 71°F is lowest at 6am with the daytime high of 85°F at 2pm and a low around 75°F at 10pm is expected.

Hourly Barometric Pressure

 

The highest pressure today is 29.99inHg at 12am and lowest being 29.87inHg at 5pm.

Hourly Wind Speeds

 

The fastest wind is reported to be 9.8mph at 6pm, while the slowest is 1.6mph around 12am; expect wind gusts peaking 18.8mph at 6pm.

More Weather Charts

Current National Weather

 

Coastal Impacts for Mid-Atlantic and Flash Flooding in South Florida - 10-18 to 10-20
Updated Sun Oct 18th 2026, 9:10am PDT

This weekend, a powerful storm system is forming along the Carolina coast, potentially causing coastal flooding and beach erosion for the Mid-Atlantic region. Meanwhile, folks in South Florida should be on alert for flash flooding due to heavy rain. In the Southwest, scattered showers and storms continue as moisture moves northward from Mexico. Lastly, the Pacific Northwest will see more rain as a new weather system approaches the coast.

Mid-Atlantic Coastal Concerns

From Sunday through Tuesday, a storm known as a 'Nor'easter' is developing near the North Carolina coast. This storm is expected to move further offshore but will still cause strong winds blowing from the ocean to the land. These winds may lead to coastal flooding and beach erosion in the Mid-Atlantic region. Residents along the coasts should be prepared for these conditions.

Flash Flooding in South Florida

In South Florida, a weather front will linger, resulting in continued showers and thunderstorms through Monday. On Sunday, slow-moving storms could dump a lot of rain in a short time, leading to localized flash flooding. Stay safe and avoid driving through flooded areas.

Rain in the Southwest

Moisture from northwestern Mexico is streaming into the Southwest, bringing scattered showers and thunderstorms through Monday. How much rain you'll see depends on where the moisture moves. Expect typical daytime temperatures to return as the week progresses.

Rain in the Pacific Northwest

Looking further north, a weather system is moving in from the eastern Pacific, increasing the chances of rain along the coast. This will help moderate temperatures to more typical levels as the week begins.

This weather report is relevant for ZIP codes 91701 and 91737, accurately covering areas of Alta Loma, CA.