Monthly outlook for Radnor, CA: average high 75.4°, average low 53.9°. That is 0.7° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 17 October (93°), the coolest 26 October (47.9°).
75.4°/53.9°
Average high / low
−0.7°
Below normal
2 / 1
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
81.1°
78.4°
+1.5°
25 October – 3 November
66.1°
73.1°
-3.9°
4 November – 13 November
at normal
69.1°
—
October records over 66 years
104.7°3 October 2024All-time high
36.3°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — McFarland (11 mi).
Fri, 1691° / 55°0
91 °
Radnor, Friday, 16 October
Clear. High 91°, low 55°.
Pressure30.09 inHg
Wind3.5 mph NW
Humidity15%
Visibility6.2 mi
Dew point28°
Sat, 1793° / 59°0
93 °
Radnor, Saturday, 17 October
Clear. High 93°, low 59°.
Pressure30.03 inHg
Wind3.6 mph W
Humidity13%
Visibility6.2 mi
Dew point27°
Sun, 1893° / 61°0
93 °
Radnor, Sunday, 18 October
Clear. High 93°, low 61°.
Pressure29.94 inHg
Wind4.7 mph SW
Humidity13%
Visibility6.2 mi
Dew point32°
Mon, 1982° / 59°0
82 °
Radnor, Monday, 19 October
Partly cloudy. High 82°, low 59°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity33%
Visibility—
Dew point40°
Tue, 2075° / 54°0.05
75 °
Radnor, Tuesday, 20 October
Light rain. High 75°, low 54°.
Pressure29.91 inHg
Wind7.4 mph NW
Humidity41%
Visibility—
Dew point40°
Wed, 2167° / 56°0.17
67 °
Radnor, Wednesday, 21 October
Light rain. High 67°, low 56°.
Pressure29.91 inHg
Wind7.2 mph NW
Humidity74%
Visibility—
Dew point51°
Thu, 2272° / 54°0
72 °
Radnor, Thursday, 22 October
Clear. High 72°, low 54°.
Pressure30.09 inHg
Wind8.7 mph NW
Humidity48%
Visibility—
Dew point44°
Fri, 2375° / 56°0
75 °
Radnor, Friday, 23 October
Clear. High 75°, low 56°.
Pressure30.18 inHg
Wind5.1 mph W
Humidity39%
Visibility—
Dew point42°
Sat, 2478° / 58°0
78 °
Radnor, Saturday, 24 October
Clear. High 78°, low 58°.
Pressure30.06 inHg
Wind5.6 mph NW
Humidity35%
Visibility—
Dew point40°
Sun, 2567° / 52°0.01
67 °
Radnor, Sunday, 25 October
Light rain. High 67°, low 52°.
Pressure29.94 inHg
Wind13.7 mph N
Humidity33%
Visibility—
Dew point32°
Mon, 2662° / 48°0.02
62 °
Radnor, Monday, 26 October
Light rain. High 62°, low 48°.
Pressure29.97 inHg
Wind7.9 mph SW
Humidity48%
Visibility—
Dew point36°
Tue, 2764° / 48°0
64 °
Radnor, Tuesday, 27 October
Clear. High 64°, low 48°.
Pressure30.12 inHg
Wind6.8 mph NW
Humidity42%
Visibility—
Dew point34°
Wed, 2866° / 49°0
66 °
Radnor, Wednesday, 28 October
Clear. High 66°, low 49°.
Pressure30.12 inHg
Wind5.8 mph W
Humidity34%
Visibility—
Dew point31°
Thu, 2968° / 51°0
68 °
Radnor, Thursday, 29 October
Clear. High 68°, low 51°.
Pressure30.09 inHg
Wind8.1 mph NW
Humidity34%
Visibility—
Dew point32°
Fri, 3069° / 48°0
69 °
Radnor, Friday, 30 October
Clear. High 69°, low 48°.
Pressure30.21 inHg
Wind5.7 mph NW
Humidity26%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3171° / 51°0.02
71 °
Radnor, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high71°
Average low51°
Average precipitation0.02 in
Chance of precipitation8%
Record high83° (1988)
Record low37° (1972)
Sun, 0172° / 50°0.02
72 °
Radnor, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.02 in
Chance of precipitation8%
Record high85° (2020)
Record low39° (2019)
Mon, 0272° / 51°0.02
72 °
Radnor, Monday, 2 November
Climate normal for this date — 60-year average.
Average high72°
Average low51°
Average precipitation0.02 in
Chance of precipitation8%
Record high85° (2020)
Record low42° (1971)
Tue, 0372° / 50°0.02
72 °
Radnor, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.02 in
Chance of precipitation10%
Record high84° (1997)
Record low40° (1990)
Wed, 0472° / 50°0.02
72 °
Radnor, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.02 in
Chance of precipitation10%
Record high86° (2010)
Record low38° (1994)
Thu, 0572° / 50°0.02
72 °
Radnor, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.02 in
Chance of precipitation8%
Record high90° (2010)
Record low41° (2003)
Fri, 0671° / 51°0.03
71 °
Radnor, Friday, 6 November
Climate normal for this date — 60-year average.
Average high71°
Average low51°
Average precipitation0.03 in
Chance of precipitation10%
Record high84° (2012)
Record low43° (2015)
Sat, 0770° / 50°0.03
70 °
Radnor, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high70°
Average low50°
Average precipitation0.03 in
Chance of precipitation17%
Record high82° (1991)
Record low41° (1977)
Sun, 0869° / 50°0.07
69 °
Radnor, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high69°
Average low50°
Average precipitation0.07 in
Chance of precipitation23%
Record high82° (1991)
Record low41° (1990)
Mon, 0968° / 49°0.04
68 °
Radnor, Monday, 9 November
Climate normal for this date — 60-year average.
Average high68°
Average low49°
Average precipitation0.04 in
Chance of precipitation12%
Record high82° (2016)
Record low37° (2020)
Tue, 1068° / 48°0.04
68 °
Radnor, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high68°
Average low48°
Average precipitation0.04 in
Chance of precipitation17%
Record high85° (2016)
Record low33° (2020)
Wed, 1168° / 48°0.08
68 °
Radnor, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high68°
Average low48°
Average precipitation0.08 in
Chance of precipitation18%
Record high87° (2016)
Record low35° (2020)
Thu, 1267° / 48°0.04
67 °
Radnor, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high67°
Average low48°
Average precipitation0.04 in
Chance of precipitation18%
Record high81° (1990)
Record low37° (1985)
Fri, 1367° / 47°0.02
67 °
Radnor, Friday, 13 November
Climate normal for this date — 60-year average.
Average high67°
Average low47°
Average precipitation0.02 in
Chance of precipitation13%
Record high84° (1990)
Record low31° (1985)
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 Radnor, 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 Radnor, 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.