Monthly outlook for Blackhawk, CA: average high 89.1°, average low 57.2°. That is 3.3° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 21 August (95.6°), the coolest 16 August (54°).
89.1°/57.2°
Average high / low
+3.3°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
88.5°
83.8°
+2.6°
18 August – 27 August
90.1°
82.6°
+4.2°
28 August – 6 September
at normal
84.6°
—
August records over 66 years
104.4°16 August 2020All-time high
51.6°10 August 1960All-time low
Climate normals and records are computed from the nearest reference point — Concord (12 mi).
Sun, 0993° / 61°0
93 °
Blackhawk, Sunday, 9 August
Clear. High 93°, low 61°.
Pressure29.80 inHg
Wind3.8 mph SW
Humidity12%
Visibility6.2 mi
Dew point39°
Mon, 1094° / 60°0
94 °
Blackhawk, Monday, 10 August
Overcast. High 94°, low 60°.
Pressure29.85 inHg
Wind6.4 mph SW
Humidity18%
Visibility6.2 mi
Dew point43°
Tue, 1194° / 58°0
94 °
Blackhawk, Tuesday, 11 August
Clear. High 94°, low 58°.
Pressure29.91 inHg
Wind6 mph SW
Humidity18%
Visibility6.2 mi
Dew point42°
Wed, 1291° / 57°0
91 °
Blackhawk, Wednesday, 12 August
Mostly clear. High 91°, low 57°.
Pressure29.83 inHg
Wind5.6 mph SW
Humidity21%
Visibility6.2 mi
Dew point44°
Thu, 1386° / 57°0
86 °
Blackhawk, Thursday, 13 August
Overcast. High 86°, low 57°.
Pressure29.80 inHg
Wind10.2 mph W
Humidity27%
Visibility—
Dew point46°
Fri, 1480° / 58°0
80 °
Blackhawk, Friday, 14 August
Overcast. High 80°, low 58°.
Pressure29.88 inHg
Wind8 mph SW
Humidity35%
Visibility—
Dew point48°
Sat, 1585° / 55°0
85 °
Blackhawk, Saturday, 15 August
Clear. High 85°, low 55°.
Pressure29.97 inHg
Wind9.4 mph W
Humidity26%
Visibility—
Dew point43°
Sun, 1689° / 54°0
89 °
Blackhawk, Sunday, 16 August
Overcast. High 89°, low 54°.
Pressure29.97 inHg
Wind7.7 mph SW
Humidity18%
Visibility—
Dew point37°
Mon, 1786° / 57°0
86 °
Blackhawk, Monday, 17 August
Overcast. High 86°, low 57°.
Pressure30.03 inHg
Wind7.6 mph SW
Humidity21%
Visibility—
Dew point39°
Tue, 1891° / 57°0
91 °
Blackhawk, Tuesday, 18 August
Clear. High 91°, low 57°.
Pressure29.97 inHg
Wind9.6 mph SW
Humidity14%
Visibility—
Dew point32°
Wed, 1985° / 55°0
85 °
Blackhawk, Wednesday, 19 August
Clear. High 85°, low 55°.
Pressure29.94 inHg
Wind10.9 mph SW
Humidity24%
Visibility—
Dew point41°
Thu, 2087° / 57°0
87 °
Blackhawk, Thursday, 20 August
Clear. High 87°, low 57°.
Pressure29.91 inHg
Wind9.5 mph SW
Humidity28%
Visibility—
Dew point46°
Fri, 2196° / 56°0
96 °
Blackhawk, Friday, 21 August
Clear. High 96°, low 56°.
Pressure29.85 inHg
Wind9 mph SW
Humidity17%
Visibility—
Dew point40°
Sat, 2294° / 60°0
94 °
Blackhawk, Saturday, 22 August
Overcast. High 94°, low 60°.
Pressure29.80 inHg
Wind8.2 mph SW
Humidity19%
Visibility—
Dew point43°
Sun, 2388° / 56°0
88 °
Blackhawk, Sunday, 23 August
Partly cloudy. High 88°, low 56°.
Pressure29.85 inHg
Wind8.7 mph SW
Humidity25%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 58°0
83 °
Blackhawk, Monday, 24 August
Climate normal for this date — 60-year average.
Average high83°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high101° (2010)
Record low53° (1970)
Tue, 2583° / 58°0
83 °
Blackhawk, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high98° (1988)
Record low54° (1970)
Wed, 2683° / 57°0
83 °
Blackhawk, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2017)
Record low53° (1970)
Thu, 2785° / 58°0
85 °
Blackhawk, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2017)
Record low53° (1960)
Fri, 2885° / 58°0
85 °
Blackhawk, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high102° (2021)
Record low53° (1960)
Sat, 2984° / 58°0
84 °
Blackhawk, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high99° (1977)
Record low53° (1980)
Sun, 3083° / 58°0
83 °
Blackhawk, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low58°
Average precipitation0 in
Chance of precipitation3%
Record high99° (2023)
Record low53° (2010)
Mon, 3184° / 58°0
84 °
Blackhawk, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high98° (2025)
Record low52° (1970)
Tue, 0185° / 58°0
85 °
Blackhawk, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high108° (2017)
Record low52° (1973)
Wed, 0285° / 58°0
85 °
Blackhawk, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high107° (2017)
Record low53° (1960)
Thu, 0384° / 58°0
84 °
Blackhawk, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high98° (2024)
Record low51° (2000)
Fri, 0485° / 58°0
85 °
Blackhawk, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high103° (2022)
Record low52° (1960)
Sat, 0585° / 58°0
85 °
Blackhawk, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high111° (2022)
Record low52° (2000)
Sun, 0685° / 58°0
85 °
Blackhawk, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high111° (2022)
Record low52° (1980)
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 Blackhawk, 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 Blackhawk, 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.