10-day forecast for Alton, IN: 29° to 66°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
66°
Best day: Tuesday, November 10
43° · 0.11 in
Worst day: Friday, November 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0857° / 31°0
Morning35°feels 30°
Afternoon56°feels 53°
Evening49°feels 45°
Overnight35°feels 32°
57 °
Alton, Sunday, 8 November
Clear. High 57°, low 31°.
Pressure30.18 inHg
Wind7.5 mph W
Humidity55%
Visibility6.2 mi
Dew point38°
Mon, 0962° / 41°0
Morning42°feels 39°
Afternoon62°feels 60°
Evening49°feels 47°
Overnight43°feels 40°
62 °
Alton, Monday, 9 November
Clear. High 62°, low 41°.
Pressure30.21 inHg
Wind2.7 mph NW
Humidity52%
Visibility6.2 mi
Dew point42°
Tue, 1066° / 43°0
Morning45°feels 41°
Afternoon66°feels 64°
Evening53°feels 52°
Overnight44°feels 41°
66 °
Alton, Tuesday, 10 November
Clear. High 66°, low 43°.
Pressure30.12 inHg
Wind5.9 mph W
Humidity61%
Visibility6.2 mi
Dew point50°
Wed, 1165° / 43°0.23
Morning49°feels 47°
Afternoon63°feels 62°
Evening55°feels 55°
Overnight47°feels 44°
65 °
Alton, Wednesday, 11 November
Rain. High 65°, low 43°.
Pressure29.88 inHg
Wind10.2 mph W
Humidity54%
Visibility—
Dew point45°
Thu, 1253° / 42°0.06
Morning47°feels 42°
Afternoon51°feels 48°
Evening46°feels 41°
Overnight43°feels 37°
53 °
Alton, Thursday, 12 November
Light rain. High 53°, low 42°.
Pressure29.80 inHg
Wind14 mph NW
Humidity59%
Visibility—
Dew point37°
Fri, 1343° / 36°0.11
Morning38°feels 31°
Afternoon40°feels 33°
Evening38°feels 33°
Overnight36°feels 30°
43 °
Alton, Friday, 13 November
Snow. High 43°, low 36°.
Pressure29.88 inHg
Wind11 mph N
Humidity70%
Visibility—
Dew point31°
Sat, 1447° / 29°0
Morning34°feels 27°
Afternoon44°feels 39°
Evening37°feels 33°
Overnight34°feels 29°
47 °
Alton, Saturday, 14 November
Clear. High 47°, low 29°.
Pressure30.12 inHg
Wind10.2 mph NW
Humidity45%
Visibility—
Dew point23°
Sun, 1557° / 31°0
Morning38°feels 34°
Afternoon53°feels 50°
Evening46°feels 44°
Overnight42°feels 39°
57 °
Alton, Sunday, 15 November
Clear. High 57°, low 31°.
Pressure30.18 inHg
Wind8.9 mph SW
Humidity35%
Visibility—
Dew point24°
Mon, 1663° / 41°0
Morning47°feels 45°
Afternoon62°feels 60°
Evening54°feels 53°
Overnight50°feels 49°
63 °
Alton, Monday, 16 November
Partly cloudy. High 63°, low 41°.
Pressure30.21 inHg
Wind5.6 mph SW
Humidity49%
Visibility—
Dew point40°
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.