10-day forecast for Alton, IN: 35° to 69°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
64°
Best day: Thursday, November 5
69° · 0.83 in
Worst day: Wednesday, November 4
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 0564° / 48°0
Morning49°feels 46°
Afternoon64°feels 62°
Evening54°feels 52°
Overnight52°feels 52°
64 °
Alton, Thursday, 5 November
Clear. High 64°, low 48°.
Pressure29.91 inHg
Wind9.8 mph SW
Humidity49%
Visibility6.2 mi
Dew point44°
Fri, 0657° / 46°0.04
Morning49°feels 47°
Afternoon57°feels 56°
Evening51°feels 48°
Overnight49°feels 48°
57 °
Alton, Friday, 6 November
Light rain. High 57°, low 46°.
Pressure30.06 inHg
Wind6.7 mph NW
Humidity86%
Visibility6.2 mi
Dew point51°
Sat, 0753° / 39°0
Morning41°feels 38°
Afternoon53°feels 51°
Evening43°feels 40°
Overnight41°feels 37°
53 °
Alton, Saturday, 7 November
Mostly clear. High 53°, low 39°.
Pressure30.24 inHg
Wind7.3 mph N
Humidity51%
Visibility6.2 mi
Dew point35°
Sun, 0856° / 35°0
Morning40°feels 40°
Afternoon54°feels 51°
Evening47°feels 43°
Overnight38°feels 38°
56 °
Alton, Sunday, 8 November
Clear. High 56°, low 35°.
Pressure30.24 inHg
Wind6.9 mph W
Humidity50%
Visibility—
Dew point34°
Mon, 0963° / 39°0
Morning46°feels 43°
Afternoon61°feels 59°
Evening51°feels 49°
Overnight46°feels 44°
63 °
Alton, Monday, 9 November
Clear. High 63°, low 39°.
Pressure30.21 inHg
Wind5.5 mph W
Humidity56%
Visibility—
Dew point43°
Tue, 1064° / 44°0
Morning49°feels 47°
Afternoon60°feels 58°
Evening49°feels 47°
Overnight46°feels 44°
64 °
Alton, Tuesday, 10 November
Overcast. High 64°, low 44°.
Pressure30.09 inHg
Wind4.6 mph N
Humidity29%
Visibility—
Dew point27°
Wed, 1161° / 41°0
Morning47°feels 46°
Afternoon60°feels 57°
Evening50°feels 47°
Overnight47°feels 44°
61 °
Alton, Wednesday, 11 November
Mostly clear. High 61°, low 41°.
Pressure30.06 inHg
Wind7 mph NW
Humidity33%
Visibility—
Dew point29°
Thu, 1258° / 39°0
Morning45°feels 42°
Afternoon56°feels 53°
Evening46°feels 44°
Overnight42°feels 40°
58 °
Alton, Thursday, 12 November
Clear. High 58°, low 39°.
Pressure30.12 inHg
Wind6.8 mph NW
Humidity44%
Visibility—
Dew point33°
Fri, 1359° / 37°0
Morning43°feels 40°
Afternoon56°feels 53°
Evening46°feels 44°
Overnight42°feels 40°
59 °
Alton, Friday, 13 November
Clear. High 59°, low 37°.
Pressure29.97 inHg
Wind9.8 mph W
Humidity31%
Visibility—
Dew point25°
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, IN 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.