Monthly outlook for Bonnie Bell, CA: average high 91.7°, average low 73.2°. That is 1.6° below the climate normal for August. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 1 days and 0.2 inches. The warmest day looks like 9 August (98.3°), the coolest 16 August (70.1°).
91.7°/73.2°
Average high / low
−1.6°
Below normal
2 / 1
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
90.8°
95°
-2.4°
19 August – 28 August
93.2°
93.7°
-0.3°
29 August – 7 September
at normal
93.3°
—
August records over 66 years
107.1°4 August 2021All-time high
50°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Morongo Valley (10 mi).
Mon, 1094° / 71°0.02
94 °
Bonnie Bell, Monday, 10 August
Light rain. High 94°, low 71°.
Pressure29.91 inHg
Wind5.5 mph S
Humidity31%
Visibility6.2 mi
Dew point58°
Tue, 1196° / 75°0.11
96 °
Bonnie Bell, Tuesday, 11 August
Light rain. High 96°, low 75°.
Pressure29.94 inHg
Wind7.3 mph SW
Humidity28%
Visibility6.2 mi
Dew point52°
Wed, 1292° / 74°0
92 °
Bonnie Bell, Wednesday, 12 August
Light rain. High 92°, low 74°.
Pressure29.85 inHg
Wind10.8 mph SW
Humidity24%
Visibility6.2 mi
Dew point46°
Thu, 1388° / 72°0
88 °
Bonnie Bell, Thursday, 13 August
Overcast. High 88°, low 72°.
Pressure29.88 inHg
Wind15.2 mph W
Humidity29%
Visibility—
Dew point47°
Fri, 1489° / 71°0
89 °
Bonnie Bell, Friday, 14 August
Overcast. High 89°, low 71°.
Pressure29.94 inHg
Wind13.4 mph W
Humidity22%
Visibility—
Dew point41°
Sat, 1581° / 72°0.07
81 °
Bonnie Bell, Saturday, 15 August
Light rain. High 81°, low 72°.
Pressure30.00 inHg
Wind12.1 mph W
Humidity38%
Visibility—
Dew point51°
Sun, 1688° / 70°0
88 °
Bonnie Bell, Sunday, 16 August
Overcast. High 88°, low 70°.
Pressure30.06 inHg
Wind13.2 mph SW
Humidity40%
Visibility—
Dew point55°
Mon, 1790° / 72°0
90 °
Bonnie Bell, Monday, 17 August
Overcast. High 90°, low 72°.
Pressure30.03 inHg
Wind15.4 mph SW
Humidity27%
Visibility—
Dew point46°
Tue, 1892° / 73°0
92 °
Bonnie Bell, Tuesday, 18 August
Partly cloudy. High 92°, low 73°.
Pressure29.94 inHg
Wind13.6 mph SW
Humidity25%
Visibility—
Dew point46°
Wed, 1992° / 75°0
92 °
Bonnie Bell, Wednesday, 19 August
Overcast. High 92°, low 75°.
Pressure29.91 inHg
Wind11.3 mph SW
Humidity16%
Visibility—
Dew point35°
Thu, 2092° / 75°0.01
92 °
Bonnie Bell, Thursday, 20 August
Light rain. High 92°, low 75°.
Pressure29.97 inHg
Wind11.8 mph W
Humidity35%
Visibility—
Dew point54°
Fri, 2192° / 73°0
92 °
Bonnie Bell, Friday, 21 August
Clear. High 92°, low 73°.
Pressure29.94 inHg
Wind14.2 mph SW
Humidity29%
Visibility—
Dew point48°
Sat, 2294° / 76°0
94 °
Bonnie Bell, Saturday, 22 August
Clear. High 94°, low 76°.
Pressure29.91 inHg
Wind15.2 mph SW
Humidity20%
Visibility—
Dew point42°
Sun, 2394° / 75°0
94 °
Bonnie Bell, Sunday, 23 August
Clear. High 94°, low 75°.
Pressure29.91 inHg
Wind15.9 mph SW
Humidity19%
Visibility—
Dew point40°
Mon, 2495° / 75°0
95 °
Bonnie Bell, Monday, 24 August
Clear. High 95°, low 75°.
Pressure29.88 inHg
Wind10.5 mph W
Humidity16%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2593° / 70°0.02
93 °
Bonnie Bell, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high93°
Average low70°
Average precipitation0.02 in
Chance of precipitation10%
Record high102° (2011)
Record low58° (1990)
Wed, 2693° / 69°0.01
93 °
Bonnie Bell, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high93°
Average low69°
Average precipitation0.01 in
Chance of precipitation7%
Record high103° (2001)
Record low56° (1973)
Thu, 2794° / 69°0.01
94 °
Bonnie Bell, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high94°
Average low69°
Average precipitation0.01 in
Chance of precipitation5%
Record high104° (2017)
Record low52° (1973)
Fri, 2895° / 71°0.01
95 °
Bonnie Bell, Friday, 28 August
Climate normal for this date — 60-year average.
Average high95°
Average low71°
Average precipitation0.01 in
Chance of precipitation7%
Record high103° (2009)
Record low58° (1961)
Sat, 2995° / 71°0
95 °
Bonnie Bell, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high95°
Average low71°
Average precipitation0 in
Chance of precipitation2%
Record high102° (2009)
Record low58° (2010)
Sun, 3095° / 70°0
95 °
Bonnie Bell, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high95°
Average low70°
Average precipitation0 in
Chance of precipitation2%
Record high102° (1998)
Record low57° (2010)
Mon, 3194° / 69°0
94 °
Bonnie Bell, Monday, 31 August
Climate normal for this date — 60-year average.
Average high94°
Average low69°
Average precipitation0 in
Chance of precipitation7%
Record high105° (2022)
Record low55° (1992)
Tue, 0194° / 69°0.01
94 °
Bonnie Bell, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high94°
Average low69°
Average precipitation0.01 in
Chance of precipitation7%
Record high101° (2004)
Record low53° (1964)
Wed, 0293° / 70°0.01
93 °
Bonnie Bell, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high93°
Average low70°
Average precipitation0.01 in
Chance of precipitation3%
Record high100° (1982)
Record low53° (1964)
Thu, 0393° / 69°0.01
93 °
Bonnie Bell, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high93°
Average low69°
Average precipitation0.01 in
Chance of precipitation8%
Record high102° (1982)
Record low55° (2000)
Fri, 0492° / 70°0.01
92 °
Bonnie Bell, Friday, 4 September
Climate normal for this date — 60-year average.
Average high92°
Average low70°
Average precipitation0.01 in
Chance of precipitation5%
Record high101° (2010)
Record low53° (1985)
Sat, 0592° / 70°0
92 °
Bonnie Bell, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high92°
Average low70°
Average precipitation0 in
Chance of precipitation3%
Record high105° (2020)
Record low56° (1970)
Sun, 0692° / 69°0
92 °
Bonnie Bell, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high92°
Average low69°
Average precipitation0 in
Chance of precipitation5%
Record high107° (2020)
Record low54° (1985)
Mon, 0792° / 69°0.01
92 °
Bonnie Bell, Monday, 7 September
Climate normal for this date — 60-year average.
Average high92°
Average low69°
Average precipitation0.01 in
Chance of precipitation7%
Record high107° (2020)
Record low53° (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 Bonnie Bell, 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 Bonnie Bell, 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.