10-day forecast for Alton, CA: 35° to 61°, with precipitation expected on 7 days. The table below breaks each day into morning, afternoon, evening and overnight.
54°
Best day: Friday, November 20
61° · 1.56 in
Worst day: Friday, November 13
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1461° / 44°0.05
Morning49°feels 45°
Afternoon61°feels 60°
Evening56°feels 55°
Overnight46°feels 42°
61 °
Alton, Saturday, 14 November
Light rain. High 61°, low 44°.
Pressure29.88 inHg
Wind13.8 mph S
Humidity65%
Visibility6.2 mi
Dew point48°
Sun, 1559° / 43°1.23
Morning52°feels 51°
Afternoon58°feels 56°
Evening46°feels 45°
Overnight53°feels 53°
59 °
Alton, Sunday, 15 November
Heavy rain. High 59°, low 43°.
Pressure30.00 inHg
Wind7.1 mph SW
Humidity64%
Visibility6.2 mi
Dew point47°
Mon, 1655° / 42°0.24
Morning43°feels 39°
Afternoon54°feels 53°
Evening44°feels 44°
Overnight43°feels 39°
55 °
Alton, Monday, 16 November
Rain. High 55°, low 42°.
Pressure30.18 inHg
Wind2.5 mph W
Humidity71%
Visibility6.2 mi
Dew point45°
Tue, 1754° / 35°0.1
Morning40°feels 40°
Afternoon54°feels 51°
Evening49°feels 44°
Overnight39°feels 39°
54 °
Alton, Tuesday, 17 November
Light rain. High 54°, low 35°.
Pressure30.06 inHg
Wind19.1 mph SE
Humidity64%
Visibility—
Dew point40°
Wed, 1850° / 43°1.11
Morning45°feels 43°
Afternoon49°feels 46°
Evening45°feels 43°
Overnight45°feels 44°
50 °
Alton, Wednesday, 18 November
Rain. High 50°, low 43°.
Pressure30.06 inHg
Wind6.5 mph SW
Humidity84%
Visibility—
Dew point44°
Thu, 1952° / 40°0
Morning44°feels 41°
Afternoon50°feels 48°
Evening41°feels 38°
Overnight40°feels 37°
52 °
Alton, Thursday, 19 November
Clear. High 52°, low 40°.
Pressure30.06 inHg
Wind8.4 mph N
Humidity58%
Visibility—
Dew point36°
Fri, 2054° / 37°0
Morning42°feels 38°
Afternoon52°feels 49°
Evening40°feels 37°
Overnight38°feels 34°
54 °
Alton, Friday, 20 November
Clear. High 54°, low 37°.
Pressure30.00 inHg
Wind5.8 mph SE
Humidity45%
Visibility—
Dew point31°
Sat, 2152° / 39°0.01
Morning45°feels 42°
Afternoon51°feels 48°
Evening45°feels 41°
Overnight44°feels 39°
52 °
Alton, Saturday, 21 November
Light rain. High 52°, low 39°.
Pressure29.97 inHg
Wind9 mph SE
Humidity57%
Visibility—
Dew point36°
Sun, 2251° / 43°0.07
Morning45°feels 42°
Afternoon50°feels 48°
Evening47°feels 44°
Overnight46°feels 44°
51 °
Alton, Sunday, 22 November
Light rain. High 51°, low 43°.
Pressure30.06 inHg
Wind6.5 mph E
Humidity82%
Visibility—
Dew point44°
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 Alton, 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.