Alta Loma, CA Weather Forecast and Current Conditions

WEATHER ALERTS - Air Quality Alert

Current Conditions From Nearby Local Station

Clear 61°F
Feels Like 61°F  
Humidity 41% Dew Point 37°F Wind Calm Barometer 30.11 in.
Report from a MADIS/MESONET weather station 0.7 mi. W of central Alta Loma
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Point Forecast at a Glance

TueDec 16
Tue Dec 16: Partly Cloudy, Low 57F
 
57
WedDec 17
Wed Dec 17: Mostly Sunny, High 76F, Low 58F
76
58
ThuDec 18
Thu Dec 18: Sunny, High 81F, Low 59F
81
59
FriDec 19
Fri Dec 19: Sunny, High 79F, Low 56F
79
56
SatDec 20
Sat Dec 20: Sunny, High 75F, Low 55F
75
55
SunDec 21
Sun Dec 21: Mostly Sunny, High 75F, Low 56F
75
56
MonDec 22
Mon Dec 22: Mostly Sunny, High 76F, Low 55F
76
55

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7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 75°F to 81°F. Dry weather expected throughout the week.

Climate Context

This week's forecast shows temperatures running 13°F above the historical average for December. Normal highs for this period are around 63°F with lows around 40°F.

This Date in Weather History

1941 - Only two women were employed by the Weather Bureau. By 1945, more than 900 women are employed by the Weather Bureau as observers and forecasters, as a result of filling positions of men during World War II. Eleven days after Pearl Harbor, the Army requested that all weather broadcasts be discontinued. The fear was that the enemy would use this information to plan an attack on the United States.

More on this and other weather history

Alta Loma, CA 7 Day Weather Forecast Details

Tuesday Dec 16

Partly Cloudy

Night: Partly cloudy, with a low around 57. Calm wind.

Wednesday Dec 17

Mostly Sunny

Day: Mostly sunny, with a high near 76. Calm wind becoming southwest around 5 mph.

Clear

Night: Clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening.

Thursday Dec 18

Sunny

Day: Sunny, with a high near 81. Calm wind becoming west around 5 mph.

Mostly Clear

Night: Mostly clear, with a low around 59. Calm wind.

Friday Dec 19

Sunny

Day: Sunny, with a high near 79.

Mostly Clear

Night: Mostly clear, with a low around 56.

Saturday Dec 20

Sunny

Day: Sunny, with a high near 75.

Partly Cloudy

Night: Partly cloudy, with a low around 55.

Sunday Dec 21

Mostly Sunny

Day: Mostly sunny, with a high near 75.

Partly Cloudy

Night: Partly cloudy, with a low around 56.

Monday Dec 22

Mostly Sunny

Day: Mostly sunny, with a high near 76.

Mostly Cloudy

Night: Mostly cloudy, with a low around 55.

Tuesday Dec 23

Showers

Day: A slight chance of showers. Mostly sunny, with a high near 71.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.