10-day forecast for Walnut, CA: 68° to 96°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
96°
Best day: Sunday, August 9
86°
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0996° / 70°0
Morning79°feels 79°
Afternoon95°feels 92°
Evening80°feels 80°
Overnight71°feels 71°
96 °
Walnut, Sunday, 9 August
Clear. High 96°, low 70°.
Pressure29.83 inHg
Wind7.9 mph SW
Humidity28%
Visibility6.2 mi
Dew point54°
Mon, 1092° / 70°0
Morning77°feels 77°
Afternoon92°feels 89°
Evening80°feels 80°
Overnight72°feels 72°
92 °
Walnut, Monday, 10 August
Overcast. High 92°, low 70°.
Pressure29.91 inHg
Wind8.2 mph SW
Humidity29%
Visibility6.2 mi
Dew point54°
Tue, 1189° / 73°0
Morning76°feels 75°
Afternoon89°feels 87°
Evening81°feels 81°
Overnight75°feels 75°
89 °
Walnut, Tuesday, 11 August
Overcast. High 89°, low 73°.
Pressure29.97 inHg
Wind8.5 mph SW
Humidity30%
Visibility6.2 mi
Dew point52°
Wed, 1289° / 72°0
Morning74°feels 74°
Afternoon83°feels 82°
Evening84°feels 82°
Overnight73°feels 73°
89 °
Walnut, Wednesday, 12 August
Overcast. High 89°, low 72°.
Pressure29.91 inHg
Wind11.6 mph SW
Humidity35%
Visibility—
Dew point51°
Thu, 1386° / 69°0
Morning72°feels 72°
Afternoon80°feels 79°
Evening81°feels 80°
Overnight71°feels 71°
86 °
Walnut, Thursday, 13 August
Overcast. High 86°, low 69°.
Pressure29.91 inHg
Wind10.4 mph SW
Humidity44%
Visibility—
Dew point54°
Fri, 1486° / 68°0
Morning71°feels 71°
Afternoon80°feels 79°
Evening82°feels 81°
Overnight73°feels 73°
86 °
Walnut, Friday, 14 August
Overcast. High 86°, low 68°.
Pressure29.97 inHg
Wind10 mph SW
Humidity43%
Visibility—
Dew point53°
Sat, 1591° / 70°0
Morning74°feels 74°
Afternoon85°feels 83°
Evening88°feels 85°
Overnight76°feels 76°
91 °
Walnut, Saturday, 15 August
Partly cloudy. High 91°, low 70°.
Pressure30.00 inHg
Wind10.2 mph SW
Humidity34%
Visibility—
Dew point51°
Sun, 1692° / 73°0
Morning76°feels 75°
Afternoon86°feels 84°
Evening88°feels 85°
Overnight75°feels 75°
92 °
Walnut, Sunday, 16 August
Mostly clear. High 92°, low 73°.
Pressure30.00 inHg
Wind11.4 mph SW
Humidity33%
Visibility—
Dew point51°
Mon, 1793° / 72°0
Morning76°feels 75°
Afternoon86°feels 84°
Evening88°feels 85°
Overnight77°feels 77°
93 °
Walnut, Monday, 17 August
Mostly clear. High 93°, low 72°.
Pressure30.03 inHg
Wind10.5 mph SW
Humidity31%
Visibility—
Dew point49°
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.