10-day forecast for Walnut, CA: 57° to 92°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
92°
Best day: Friday, October 16
63° · 1.44 in
Worst day: Wednesday, October 21
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1790° / 69°0
Morning77°feels 77°
Afternoon90°feels 86°
Evening81°feels 79°
Overnight71°feels 70°
90 °
Walnut, Saturday, 17 October
Clear. High 90°, low 69°.
Pressure30.00 inHg
Wind2.1 mph SE
Humidity14%
Visibility6.2 mi
Dew point34°
Sun, 1889° / 61°0
Morning65°feels 63°
Afternoon89°feels 85°
Evening77°feels 76°
Overnight68°feels 66°
89 °
Walnut, Sunday, 18 October
Clear. High 89°, low 61°.
Pressure29.94 inHg
Wind2.1 mph E
Humidity15%
Visibility6.2 mi
Dew point34°
Mon, 1986° / 62°0
Morning65°feels 64°
Afternoon86°feels 83°
Evening72°feels 71°
Overnight66°feels 64°
86 °
Walnut, Monday, 19 October
Clear. High 86°, low 62°.
Pressure29.88 inHg
Wind2.1 mph SW
Humidity23%
Visibility6.2 mi
Dew point42°
Tue, 2074° / 61°0.07
Morning65°feels 65°
Afternoon69°feels 68°
Evening68°feels 67°
Overnight62°feels 61°
74 °
Walnut, Tuesday, 20 October
Light rain. High 74°, low 61°.
Pressure29.88 inHg
Wind6.5 mph SW
Humidity62%
Visibility—
Dew point55°
Wed, 2163° / 57°1.44
Morning58°feels 58°
Afternoon60°feels 60°
Evening63°feels 63°
Overnight61°feels 61°
63 °
Walnut, Wednesday, 21 October
Rain. High 63°, low 57°.
Pressure29.91 inHg
Wind5.7 mph SE
Humidity91%
Visibility—
Dew point57°
Thu, 2269° / 62°0.59
Morning64°feels 63°
Afternoon67°feels 66°
Evening68°feels 67°
Overnight63°feels 62°
69 °
Walnut, Thursday, 22 October
Rain. High 69°, low 62°.
Pressure29.94 inHg
Wind10.1 mph SW
Humidity56%
Visibility—
Dew point50°
Fri, 2370° / 61°0.01
Morning63°feels 62°
Afternoon67°feels 66°
Evening66°feels 65°
Overnight62°feels 62°
70 °
Walnut, Friday, 23 October
Light rain. High 70°, low 61°.
Pressure30.00 inHg
Wind9 mph S
Humidity58%
Visibility—
Dew point51°
Sat, 2476° / 61°0
Morning63°feels 62°
Afternoon70°feels 69°
Evening74°feels 73°
Overnight67°feels 66°
76 °
Walnut, Saturday, 24 October
Clear. High 76°, low 61°.
Pressure30.03 inHg
Wind7.7 mph W
Humidity52%
Visibility—
Dew point49°
Sun, 2582° / 67°0
Morning70°feels 67°
Afternoon77°feels 76°
Evening80°feels 78°
Overnight71°feels 69°
82 °
Walnut, Sunday, 25 October
Clear. High 82°, low 67°.
Pressure30.06 inHg
Wind7.6 mph W
Humidity17%
Visibility—
Dew point27°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Walnut, CA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.