Monthly outlook for Loma Linda, CA: average high 97.1°, average low 74°. That is 3.3° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 24 August (107.1°), the coolest 14 August (64.8°).
97.1°/74°
Average high / low
+3.3°
Above normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
93.3°
91.5°
+0.9°
19 August – 28 August
103.5°
91.5°
+6.7°
29 August – 7 September
at normal
92.5°
—
August records over 66 years
111.7°18 August 2020All-time high
49.5°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — San Bernardino (7 mi).
Mon, 1096° / 71°0
96 °
Loma Linda, Monday, 10 August
Mostly clear. High 96°, low 71°.
Pressure29.88 inHg
Wind8 mph W
Humidity24%
Visibility6.2 mi
Dew point52°
Tue, 1195° / 72°0
95 °
Loma Linda, Tuesday, 11 August
Overcast. High 95°, low 72°.
Pressure29.94 inHg
Wind7.2 mph W
Humidity24%
Visibility6.2 mi
Dew point49°
Wed, 1291° / 71°0
91 °
Loma Linda, Wednesday, 12 August
Clear. High 91°, low 71°.
Pressure29.88 inHg
Wind7.5 mph W
Humidity26%
Visibility6.2 mi
Dew point49°
Thu, 1388° / 67°0
88 °
Loma Linda, Thursday, 13 August
Clear. High 88°, low 67°.
Pressure29.88 inHg
Wind12.1 mph W
Humidity37%
Visibility—
Dew point51°
Fri, 1488° / 65°0
88 °
Loma Linda, Friday, 14 August
Overcast. High 88°, low 65°.
Pressure29.94 inHg
Wind10 mph W
Humidity39%
Visibility—
Dew point50°
Sat, 1588° / 70°0
88 °
Loma Linda, Saturday, 15 August
Overcast. High 88°, low 70°.
Pressure29.97 inHg
Wind8.9 mph W
Humidity35%
Visibility—
Dew point51°
Sun, 1690° / 71°0
90 °
Loma Linda, Sunday, 16 August
Overcast. High 90°, low 71°.
Pressure30.06 inHg
Wind13.2 mph W
Humidity38%
Visibility—
Dew point53°
Mon, 1796° / 72°0
96 °
Loma Linda, Monday, 17 August
Mostly clear. High 96°, low 72°.
Pressure30.00 inHg
Wind12.1 mph W
Humidity32%
Visibility—
Dew point53°
Tue, 18101° / 75°0
101 °
Loma Linda, Tuesday, 18 August
Light rain. High 101°, low 75°.
Pressure29.94 inHg
Wind12.9 mph W
Humidity27%
Visibility—
Dew point52°
Wed, 19107° / 79°0
107 °
Loma Linda, Wednesday, 19 August
Clear. High 107°, low 79°.
Pressure29.85 inHg
Wind13.3 mph W
Humidity20%
Visibility—
Dew point49°
Thu, 20101° / 82°0.01
101 °
Loma Linda, Thursday, 20 August
Light rain. High 101°, low 82°.
Pressure29.88 inHg
Wind10.2 mph W
Humidity27%
Visibility—
Dew point54°
Fri, 21103° / 79°0.04
103 °
Loma Linda, Friday, 21 August
Light rain. High 103°, low 79°.
Pressure29.83 inHg
Wind11 mph W
Humidity24%
Visibility—
Dew point52°
Sat, 22100° / 79°0.06
100 °
Loma Linda, Saturday, 22 August
Light rain. High 100°, low 79°.
Pressure29.88 inHg
Wind7 mph W
Humidity28%
Visibility—
Dew point53°
Sun, 23104° / 80°0.01
104 °
Loma Linda, Sunday, 23 August
Light rain. High 104°, low 80°.
Pressure29.91 inHg
Wind10.2 mph W
Humidity25%
Visibility—
Dew point53°
Mon, 24107° / 82°0
107 °
Loma Linda, Monday, 24 August
Clear. High 107°, low 82°.
Pressure29.85 inHg
Wind12.3 mph W
Humidity21%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2592° / 68°0.02
92 °
Loma Linda, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high92°
Average low68°
Average precipitation0.02 in
Chance of precipitation10%
Record high104° (1985)
Record low56° (1990)
Wed, 2692° / 68°0.02
92 °
Loma Linda, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high92°
Average low68°
Average precipitation0.02 in
Chance of precipitation10%
Record high103° (2011)
Record low55° (1973)
Thu, 2793° / 67°0.01
93 °
Loma Linda, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high93°
Average low67°
Average precipitation0.01 in
Chance of precipitation8%
Record high105° (2021)
Record low55° (1973)
Fri, 2894° / 67°0.01
94 °
Loma Linda, Friday, 28 August
Climate normal for this date — 60-year average.
Average high94°
Average low67°
Average precipitation0.01 in
Chance of precipitation3%
Record high107° (2017)
Record low55° (1973)
Sat, 2994° / 68°0.01
94 °
Loma Linda, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high94°
Average low68°
Average precipitation0.01 in
Chance of precipitation10%
Record high107° (2017)
Record low55° (2010)
Sun, 3093° / 68°0.02
93 °
Loma Linda, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high93°
Average low68°
Average precipitation0.02 in
Chance of precipitation12%
Record high108° (2017)
Record low55° (2010)
Mon, 3192° / 67°0.01
92 °
Loma Linda, Monday, 31 August
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation7%
Record high107° (2022)
Record low54° (1964)
Tue, 0192° / 66°0.02
92 °
Loma Linda, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high92°
Average low66°
Average precipitation0.02 in
Chance of precipitation10%
Record high107° (2017)
Record low54° (1964)
Wed, 0292° / 66°0.04
92 °
Loma Linda, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high92°
Average low66°
Average precipitation0.04 in
Chance of precipitation15%
Record high105° (2007)
Record low50° (1964)
Thu, 0392° / 67°0.02
92 °
Loma Linda, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.02 in
Chance of precipitation10%
Record high110° (2022)
Record low55° (1999)
Fri, 0492° / 67°0.01
92 °
Loma Linda, Friday, 4 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation8%
Record high109° (2022)
Record low54° (1985)
Sat, 0592° / 67°0.01
92 °
Loma Linda, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation7%
Record high113° (2020)
Record low56° (2016)
Sun, 0692° / 67°0.01
92 °
Loma Linda, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation8%
Record high115° (2020)
Record low55° (2000)
Mon, 0792° / 67°0.01
92 °
Loma Linda, Monday, 7 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation7%
Record high109° (2024)
Record low52° (1965)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Loma Linda, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Loma Linda, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.