As of 17:49 PDT

Weather in Riverdale Park, CA

102°

Riverdale Park, Sunday, 9 August, 17:49

Clear. Feels like 102°. High 102°, low 63°.

Pressure29.68 inHg

Wind11.4 mph NW

Humidity24%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

Monthly outlook for Riverdale Park, CA: average high 102.5°, average low 63.3°. That is 5.3° 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 24 August (109.8°), the coolest 14 August (57.2°).

102.5°/63.3°

Average high / low

+5.3°

Above normal

0 / 0

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	99.5°	94°	+3.1°
19 August – 28 August	107.5°	91.8°	+8.7°
29 August – 7 September	at normal	92.2°	—

August records over 66 years

112.6°15 August 2020All-time high

53.4°23 August 1973All-time low

Climate normals and records are computed from the nearest reference point — Bret Harte (2 mi).

Mon, 1096° / 66°

96 °

Riverdale Park, Monday, 10 August

Mostly clear. High 96°, low 66°.

Pressure29.80 inHg

Wind1.5 mph N

Humidity11%

Visibility6.2 mi

Dew point37°

Tue, 11108° / 64°

108 °

Riverdale Park, Tuesday, 11 August

Clear. High 108°, low 64°.

Pressure29.85 inHg

Wind2.2 mph W

Humidity13%

Visibility6.2 mi

Dew point39°

Wed, 12105° / 66°

105 °

Riverdale Park, Wednesday, 12 August

Partly cloudy. High 105°, low 66°.

Pressure29.77 inHg

Wind3.2 mph SE

Humidity15%

Visibility6.2 mi

Dew point42°

Thu, 1397° / 60°

97 °

Riverdale Park, Thursday, 13 August

Clear. High 97°, low 60°.

Pressure29.80 inHg

Wind4.4 mph SE

Humidity27%

Visibility6.2 mi

Dew point50°

Fri, 1497° / 57°

97 °

Riverdale Park, Friday, 14 August

Clear. High 97°, low 57°.

Pressure29.85 inHg

Wind12.2 mph NW

Humidity20%

Visibility—

Dew point42°

Sat, 1598° / 58°

98 °

Riverdale Park, Saturday, 15 August

Clear. High 98°, low 58°.

Pressure29.91 inHg

Wind14 mph NW

Humidity18%

Visibility—

Dew point41°

Sun, 1695° / 58°

95 °

Riverdale Park, Sunday, 16 August

Overcast. High 95°, low 58°.

Pressure29.97 inHg

Wind12.8 mph NW

Humidity18%

Visibility—

Dew point39°

Mon, 1797° / 59°

97 °

Riverdale Park, Monday, 17 August

Partly cloudy. High 97°, low 59°.

Pressure29.94 inHg

Wind14.4 mph NW

Humidity14%

Visibility—

Dew point35°

Tue, 1899° / 60°

99 °

Riverdale Park, Tuesday, 18 August

Clear. High 99°, low 60°.

Pressure29.88 inHg

Wind12 mph NW

Humidity14%

Visibility—

Dew point36°

Wed, 19104° / 61°

104 °

Riverdale Park, Wednesday, 19 August

Mostly clear. High 104°, low 61°.

Pressure29.83 inHg

Wind13.3 mph NW

Humidity13%

Visibility—

Dew point37°

Thu, 20107° / 66°

107 °

Riverdale Park, Thursday, 20 August

Partly cloudy. High 107°, low 66°.

Pressure29.77 inHg

Wind12.1 mph NW

Humidity11%

Visibility—

Dew point37°

Fri, 21106° / 66°

106 °

Riverdale Park, Friday, 21 August

Overcast. High 106°, low 66°.

Pressure29.80 inHg

Wind14.3 mph NW

Humidity15%

Visibility—

Dew point43°

Sat, 22110° / 68°

110 °

Riverdale Park, Saturday, 22 August

Clear. High 110°, low 68°.

Pressure29.88 inHg

Wind11.9 mph N

Humidity13%

Visibility—

Dew point42°

Sun, 23109° / 70°

109 °

Riverdale Park, Sunday, 23 August

Clear. High 109°, low 70°.

Pressure29.94 inHg

Wind15.1 mph NW

Humidity10%

Visibility—

Dew point36°

Mon, 24110° / 70°

110 °

Riverdale Park, Monday, 24 August

Clear. High 110°, low 70°.

Pressure29.85 inHg

Wind13.5 mph NW

Humidity10%

Visibility—

Dew point36°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2592° / 63°

92 °

Riverdale Park, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0 in

Chance of precipitation0%

Record high105° (2010)

Record low54° (1963)

Wed, 2692° / 62°

92 °

Riverdale Park, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high92°

Average low62°

Average precipitation0 in

Chance of precipitation0%

Record high103° (2019)

Record low54° (1976)

Thu, 2793° / 63°

93 °

Riverdale Park, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high93°

Average low63°

Average precipitation0 in

Chance of precipitation0%

Record high105° (2017)

Record low54° (1960)

Fri, 2894° / 64°

94 °

Riverdale Park, Friday, 28 August

Climate normal for this date — 60-year average.

Average high94°

Average low64°

Average precipitation0 in

Chance of precipitation0%

Record high107° (2017)

Record low55° (1960)

Sat, 2993° / 64°

93 °

Riverdale Park, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high93°

Average low64°

Average precipitation0 in

Chance of precipitation0%

Record high107° (2021)

Record low54° (2010)

Sun, 3092° / 63°

92 °

Riverdale Park, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0 in

Chance of precipitation0%

Record high107° (2021)

Record low55° (2010)

Mon, 3192° / 63°

92 °

Riverdale Park, Monday, 31 August

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0 in

Chance of precipitation0%

Record high103° (2025)

Record low55° (1975)

Tue, 0192° / 63°

92 °

Riverdale Park, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0 in

Chance of precipitation0%

Record high107° (2022)

Record low54° (1964)

Wed, 0293° / 64°

93 °

Riverdale Park, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high93°

Average low64°

Average precipitation0 in

Chance of precipitation2%

Record high109° (2017)

Record low55° (1960)

Thu, 0392° / 63°

92 °

Riverdale Park, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0 in

Chance of precipitation2%

Record high106° (2022)

Record low53° (1964)

Fri, 0492° / 63°

92 °

Riverdale Park, Friday, 4 September

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0 in

Chance of precipitation3%

Record high109° (2022)

Record low53° (2000)

Sat, 0592° / 63°

0.01

92 °

Riverdale Park, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0.01 in

Chance of precipitation2%

Record high113° (2022)

Record low55° (1964)

Sun, 0692° / 64°

92 °

Riverdale Park, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high92°

Average low64°

Average precipitation0 in

Chance of precipitation2%

Record high119° (2022)

Record low54° (1973)

Mon, 0792° / 63°

92 °

Riverdale Park, Monday, 7 September

Climate normal for this date — 60-year average.

Average high92°

Average low63°

Average precipitation0 in

Chance of precipitation0%

Record high115° (2020)

Record low53° (1964)

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 Riverdale Park, 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 Riverdale Park, 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.