As of 13:02 PDT

Weather in Jamacha, CA

91°Current weather

Jamacha, Saturday, 8 August, 13:02

Clear. Feels like 95°. High 92°, low 70°.

Pressure29.88 inHg
Wind8 mph NW
Humidity48%
Visibility6.2 mi
Dew point68°

Monthly outlook for Jamacha, CA: average high 90.2°, average low 73.7°. That is 4.4° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 18 August (94.6°), the coolest 8 August (69.9°).

90.2°/73.7°
Average high / low
+4.4°
Above normal
1 / 0
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August90.6°82.6°+4.5°
18 August – 27 August89.4°82.7°+3.8°
28 August – 6 Septemberat normal84.2°

August records over 66 years

103.1°31 August 2017All-time high
54.1°22 August 1968All-time low

Climate normals and records are computed from the nearest reference point — El Cajon (5 mi).

Sun, 0990° / 70°0.05Light rain
90 °Light rain

Jamacha, Sunday, 9 August

Light rain. High 90°, low 70°.

Pressure29.83 inHg
Wind9.3 mph W
Humidity34%
Visibility6.2 mi
Dew point59°
Mon, 1090° / 70°0Clear
90 °Clear

Jamacha, Monday, 10 August

Clear. High 90°, low 70°.

Pressure29.91 inHg
Wind8.9 mph W
Humidity39%
Visibility6.2 mi
Dew point60°
Tue, 1191° / 75°0.01Light rain
91 °Light rain

Jamacha, Tuesday, 11 August

Light rain. High 91°, low 75°.

Pressure29.94 inHg
Wind7.7 mph W
Humidity35%
Visibility6.2 mi
Dew point56°
Wed, 1289° / 75°0Overcast
89 °Overcast

Jamacha, Wednesday, 12 August

Overcast. High 89°, low 75°.

Pressure29.88 inHg
Wind7.5 mph W
Humidity35%
Visibility6.2 mi
Dew point56°
Thu, 1388° / 73°0Partly cloudy
88 °Partly cloudy

Jamacha, Thursday, 13 August

Partly cloudy. High 88°, low 73°.

Pressure29.91 inHg
Wind10.2 mph W
Humidity45%
Visibility
Dew point57°
Fri, 1487° / 72°0Overcast
87 °Overcast

Jamacha, Friday, 14 August

Overcast. High 87°, low 72°.

Pressure29.94 inHg
Wind9.3 mph W
Humidity41%
Visibility
Dew point56°
Sat, 1592° / 74°0Partly cloudy
92 °Partly cloudy

Jamacha, Saturday, 15 August

Partly cloudy. High 92°, low 74°.

Pressure29.97 inHg
Wind9.3 mph W
Humidity36%
Visibility
Dew point55°
Sun, 1692° / 75°0Overcast
92 °Overcast

Jamacha, Sunday, 16 August

Overcast. High 92°, low 75°.

Pressure30.00 inHg
Wind10.1 mph W
Humidity37%
Visibility
Dew point56°
Mon, 1794° / 76°0Clear
94 °Clear

Jamacha, Monday, 17 August

Clear. High 94°, low 76°.

Pressure30.00 inHg
Wind10.3 mph W
Humidity29%
Visibility
Dew point51°
Tue, 1895° / 77°0Clear
95 °Clear

Jamacha, Tuesday, 18 August

Clear. High 95°, low 77°.

Pressure29.94 inHg
Wind8 mph W
Humidity30%
Visibility
Dew point53°
Wed, 1992° / 77°0Overcast
92 °Overcast

Jamacha, Wednesday, 19 August

Overcast. High 92°, low 77°.

Pressure29.91 inHg
Wind9.4 mph W
Humidity36%
Visibility
Dew point57°
Thu, 2089° / 75°0Overcast
89 °Overcast

Jamacha, Thursday, 20 August

Overcast. High 89°, low 75°.

Pressure29.88 inHg
Wind9.3 mph W
Humidity43%
Visibility
Dew point60°
Fri, 2188° / 74°0Overcast
88 °Overcast

Jamacha, Friday, 21 August

Overcast. High 88°, low 74°.

Pressure29.88 inHg
Wind8.4 mph W
Humidity47%
Visibility
Dew point60°
Sat, 2285° / 73°0.01Light rain
85 °Light rain

Jamacha, Saturday, 22 August

Light rain. High 85°, low 73°.

Pressure29.88 inHg
Wind8.5 mph W
Humidity53%
Visibility
Dew point62°
Sun, 2387° / 73°0Mostly clear
87 °Mostly clear

Jamacha, Sunday, 23 August

Mostly clear. High 87°, low 73°.

Pressure29.88 inHg
Wind10.6 mph W
Humidity53%
Visibility
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 65°0Climate normal
83 °Climate normal

Jamacha, Monday, 24 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0 in
Chance of precipitation3%
Record high92° (1985)
Record low59° (1978)
Tue, 2583° / 65°0.01Climate normal
83 °Climate normal

Jamacha, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.01 in
Chance of precipitation7%
Record high96° (1985)
Record low59° (1987)
Wed, 2684° / 65°0Climate normal
84 °Climate normal

Jamacha, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high84°
Average low65°
Average precipitation0 in
Chance of precipitation3%
Record high98° (2021)
Record low58° (1987)
Thu, 2785° / 66°0Climate normal
85 °Climate normal

Jamacha, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high85°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high98° (2020)
Record low58° (1973)
Fri, 2885° / 66°0.01Climate normal
85 °Climate normal

Jamacha, Friday, 28 August

Climate normal for this date — 60-year average.

Average high85°
Average low66°
Average precipitation0.01 in
Chance of precipitation2%
Record high100° (2023)
Record low57° (1973)
Sat, 2985° / 67°0Climate normal
85 °Climate normal

Jamacha, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high85°
Average low67°
Average precipitation0 in
Chance of precipitation3%
Record high99° (2023)
Record low58° (2010)
Sun, 3084° / 67°0Climate normal
84 °Climate normal

Jamacha, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high84°
Average low67°
Average precipitation0 in
Chance of precipitation3%
Record high97° (2017)
Record low59° (2010)
Mon, 3183° / 65°0Climate normal
83 °Climate normal

Jamacha, Monday, 31 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high103° (2017)
Record low58° (1964)
Tue, 0183° / 65°0Climate normal
83 °Climate normal

Jamacha, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0 in
Chance of precipitation3%
Record high98° (2017)
Record low58° (1964)
Wed, 0284° / 66°0.01Climate normal
84 °Climate normal

Jamacha, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high84°
Average low66°
Average precipitation0.01 in
Chance of precipitation3%
Record high98° (2017)
Record low57° (1964)
Thu, 0384° / 66°0Climate normal
84 °Climate normal

Jamacha, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high84°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high104° (1988)
Record low58° (1999)
Fri, 0485° / 66°0Climate normal
85 °Climate normal

Jamacha, Friday, 4 September

Climate normal for this date — 60-year average.

Average high85°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high102° (1988)
Record low57° (1999)
Sat, 0585° / 66°0Climate normal
85 °Climate normal

Jamacha, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high85°
Average low66°
Average precipitation0 in
Chance of precipitation2%
Record high109° (2020)
Record low57° (1970)
Sun, 0685° / 66°0Climate normal
85 °Climate normal

Jamacha, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high85°
Average low66°
Average precipitation0 in
Chance of precipitation7%
Record high105° (2020)
Record low58° (1970)

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 Jamacha, 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 Jamacha, 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.