Monthly outlook for San Mateo Park, CA: average high 73°, average low 57.8°. That is 1° 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 9 August (86°), the coolest 11 August (55.7°).
73°/57.8°
Average high / low
+1°
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
72.2°
71.3°
+0.5°
19 August – 28 August
74.4°
71.6°
+1.6°
29 August – 7 September
at normal
73°
—
August records over 66 years
100.2°14 August 2020All-time high
51.6°19 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Burlingame (2 mi).
Mon, 1082° / 60°0
82 °
San Mateo Park, Monday, 10 August
Partly cloudy. High 82°, low 60°.
Pressure29.88 inHg
Wind7.2 mph W
Humidity62%
Visibility6.2 mi
Dew point54°
Tue, 1171° / 56°0
71 °
San Mateo Park, Tuesday, 11 August
Mostly clear. High 71°, low 56°.
Pressure29.94 inHg
Wind5.4 mph W
Humidity62%
Visibility6.2 mi
Dew point54°
Wed, 1269° / 56°0
69 °
San Mateo Park, Wednesday, 12 August
Mostly clear. High 69°, low 56°.
Pressure29.85 inHg
Wind6.4 mph W
Humidity68%
Visibility6.2 mi
Dew point55°
Thu, 1369° / 57°0
69 °
San Mateo Park, Thursday, 13 August
Mostly clear. High 69°, low 57°.
Pressure29.85 inHg
Wind13.5 mph SW
Humidity65%
Visibility—
Dew point55°
Fri, 1467° / 56°0
67 °
San Mateo Park, Friday, 14 August
Partly cloudy. High 67°, low 56°.
Pressure29.94 inHg
Wind9 mph W
Humidity65%
Visibility—
Dew point54°
Sat, 1568° / 56°0
68 °
San Mateo Park, Saturday, 15 August
Mostly clear. High 68°, low 56°.
Pressure30.00 inHg
Wind8.5 mph W
Humidity65%
Visibility—
Dew point55°
Sun, 1667° / 57°0
67 °
San Mateo Park, Sunday, 16 August
Overcast. High 67°, low 57°.
Pressure30.12 inHg
Wind8.5 mph NW
Humidity66%
Visibility—
Dew point55°
Mon, 1772° / 58°0
72 °
San Mateo Park, Monday, 17 August
Overcast. High 72°, low 58°.
Pressure30.09 inHg
Wind10.5 mph NW
Humidity57%
Visibility—
Dew point55°
Tue, 1872° / 57°0
72 °
San Mateo Park, Tuesday, 18 August
Mostly clear. High 72°, low 57°.
Pressure30.03 inHg
Wind10.2 mph NW
Humidity57%
Visibility—
Dew point54°
Wed, 1973° / 58°0
73 °
San Mateo Park, Wednesday, 19 August
Overcast. High 73°, low 58°.
Pressure29.97 inHg
Wind9.2 mph W
Humidity54%
Visibility—
Dew point54°
Thu, 2071° / 57°0
71 °
San Mateo Park, Thursday, 20 August
Overcast. High 71°, low 57°.
Pressure29.91 inHg
Wind9.9 mph NW
Humidity62%
Visibility—
Dew point56°
Fri, 2174° / 57°0
74 °
San Mateo Park, Friday, 21 August
Partly cloudy. High 74°, low 57°.
Pressure29.85 inHg
Wind9.5 mph NW
Humidity58%
Visibility—
Dew point56°
Sat, 2277° / 59°0
77 °
San Mateo Park, Saturday, 22 August
Partly cloudy. High 77°, low 59°.
Pressure29.88 inHg
Wind10 mph W
Humidity52%
Visibility—
Dew point56°
Sun, 2377° / 60°0
77 °
San Mateo Park, Sunday, 23 August
Overcast. High 77°, low 60°.
Pressure29.94 inHg
Wind8.8 mph W
Humidity51%
Visibility—
Dew point56°
Mon, 2476° / 60°0
76 °
San Mateo Park, Monday, 24 August
Mostly clear. High 76°, low 60°.
Pressure29.91 inHg
Wind9.1 mph W
Humidity53%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2572° / 57°0
72 °
San Mateo Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high81° (2010)
Record low53° (2000)
Wed, 2672° / 57°0
72 °
San Mateo Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high85° (2017)
Record low52° (2005)
Thu, 2773° / 57°0
73 °
San Mateo Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high89° (2017)
Record low54° (1966)
Fri, 2873° / 57°0
73 °
San Mateo Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high94° (2021)
Record low53° (1960)
Sat, 2972° / 58°0
72 °
San Mateo Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high72°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high93° (1968)
Record low54° (2012)
Sun, 3072° / 58°0
72 °
San Mateo Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high72°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high86° (2023)
Record low54° (2012)
Mon, 3172° / 58°0
72 °
San Mateo Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high72°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2017)
Record low53° (1960)
Tue, 0173° / 57°0
73 °
San Mateo Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0 in
Chance of precipitation3%
Record high106° (2017)
Record low53° (2022)
Wed, 0273° / 58°0
73 °
San Mateo Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high106° (2017)
Record low53° (1964)
Thu, 0373° / 58°0
73 °
San Mateo Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high94° (2017)
Record low53° (1973)
Fri, 0473° / 57°0
73 °
San Mateo Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2022)
Record low53° (1960)
Sat, 0574° / 58°0
74 °
San Mateo Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high95° (2022)
Record low53° (1969)
Sun, 0674° / 57°0
74 °
San Mateo Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0 in
Chance of precipitation0%
Record high106° (2022)
Record low53° (1980)
Mon, 0774° / 58°0
74 °
San Mateo Park, Monday, 7 September
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high98° (2020)
Record low53° (2018)
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 San Mateo 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 San Mateo 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.