10-day forecast for Alton, CA: 42° to 70°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
70°
Best day: Wednesday, November 11
64° · 0.07 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 0364° / 48°0.07
Morning51°feels 50°
Afternoon64°feels 62°
Evening49°feels 47°
Overnight53°feels 52°
64 °
Alton, Tuesday, 3 November
Light rain. High 64°, low 48°.
Pressure29.97 inHg
Wind12.5 mph SE
Humidity54%
Visibility6.2 mi
Dew point46°
Wed, 0462° / 45°0
Morning49°feels 47°
Afternoon61°feels 59°
Evening54°feels 53°
Overnight48°feels 45°
62 °
Alton, Wednesday, 4 November
Overcast. High 62°, low 45°.
Pressure30.09 inHg
Wind5.7 mph W
Humidity63%
Visibility6.2 mi
Dew point49°
Thu, 0561° / 48°0.04
Morning53°feels 52°
Afternoon59°feels 58°
Evening49°feels 49°
Overnight51°feels 51°
61 °
Alton, Thursday, 5 November
Light rain. High 61°, low 48°.
Pressure30.15 inHg
Wind6.4 mph NW
Humidity72%
Visibility6.2 mi
Dew point52°
Fri, 0662° / 43°0
Morning50°feels 50°
Afternoon61°feels 59°
Evening50°feels 49°
Overnight44°feels 44°
62 °
Alton, Friday, 6 November
Clear. High 62°, low 43°.
Pressure30.21 inHg
Wind3.2 mph NW
Humidity56%
Visibility6.2 mi
Dew point45°
Sat, 0764° / 42°0
Morning49°feels 47°
Afternoon63°feels 63°
Evening57°feels 57°
Overnight53°feels 53°
64 °
Alton, Saturday, 7 November
Mostly clear. High 64°, low 42°.
Pressure30.06 inHg
Wind7.7 mph W
Humidity70%
Visibility—
Dew point51°
Sun, 0867° / 51°0
Morning56°feels 54°
Afternoon65°feels 64°
Evening53°feels 53°
Overnight52°feels 52°
67 °
Alton, Sunday, 8 November
Overcast. High 67°, low 51°.
Pressure30.09 inHg
Wind6.4 mph NW
Humidity56%
Visibility—
Dew point49°
Mon, 0963° / 51°0
Morning55°feels 54°
Afternoon61°feels 60°
Evening52°feels 51°
Overnight52°feels 51°
63 °
Alton, Monday, 9 November
Overcast. High 63°, low 51°.
Pressure30.06 inHg
Wind6.3 mph NW
Humidity64%
Visibility—
Dew point49°
Tue, 1070° / 52°0
Morning58°feels 56°
Afternoon67°feels 65°
Evening53°feels 51°
Overnight53°feels 51°
70 °
Alton, Tuesday, 10 November
Partly cloudy. High 70°, low 52°.
Pressure29.97 inHg
Wind5.3 mph SE
Humidity41%
Visibility—
Dew point43°
Wed, 1170° / 52°0
Morning59°feels 57°
Afternoon69°feels 68°
Evening64°feels 63°
Overnight60°feels 59°
70 °
Alton, Wednesday, 11 November
Light rain. High 70°, low 52°.
Pressure29.80 inHg
Wind17.5 mph SE
Humidity41%
Visibility—
Dew point43°
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.