10-day forecast for Alton, MO: 46° to 71°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
71°
Best day: Monday, November 9
68° · 1.67 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 0270° / 62°0.02
Morning64°feels 65°
Afternoon69°feels 70°
Evening68°feels 68°
Overnight63°feels 63°
70 °
Alton, Monday, 2 November
Light rain. High 70°, low 62°.
Pressure30.03 inHg
Wind14.7 mph S
Humidity84%
Visibility6.2 mi
Dew point64°
Tue, 0368° / 58°1.67
Morning68°feels 68°
Afternoon67°feels 68°
Evening64°feels 65°
Overnight67°feels 68°
68 °
Alton, Tuesday, 3 November
Heavy rain. High 68°, low 58°.
Pressure29.83 inHg
Wind13.8 mph S
Humidity93%
Visibility3.4 mi
Dew point66°
Wed, 0466° / 51°0
Morning54°feels 53°
Afternoon65°feels 63°
Evening55°feels 54°
Overnight55°feels 55°
66 °
Alton, Wednesday, 4 November
Clear. High 66°, low 51°.
Pressure29.85 inHg
Wind7.9 mph W
Humidity58%
Visibility6.2 mi
Dew point48°
Thu, 0568° / 47°0.02
Morning53°feels 51°
Afternoon65°feels 63°
Evening57°feels 56°
Overnight50°feels 47°
68 °
Alton, Thursday, 5 November
Light rain. High 68°, low 47°.
Pressure29.85 inHg
Wind8.2 mph W
Humidity41%
Visibility—
Dew point39°
Fri, 0659° / 47°0
Morning53°feels 51°
Afternoon58°feels 57°
Evening56°feels 55°
Overnight53°feels 52°
59 °
Alton, Friday, 6 November
Overcast. High 59°, low 47°.
Pressure29.97 inHg
Wind8.7 mph NW
Humidity62%
Visibility—
Dew point45°
Sat, 0766° / 47°0
Morning52°feels 50°
Afternoon63°feels 62°
Evening57°feels 55°
Overnight51°feels 50°
66 °
Alton, Saturday, 7 November
Clear. High 66°, low 47°.
Pressure30.03 inHg
Wind7.4 mph W
Humidity48%
Visibility—
Dew point42°
Sun, 0864° / 46°0
Morning51°feels 49°
Afternoon62°feels 60°
Evening52°feels 50°
Overnight49°feels 47°
64 °
Alton, Sunday, 8 November
Overcast. High 64°, low 46°.
Pressure30.03 inHg
Wind6.8 mph NW
Humidity28%
Visibility—
Dew point28°
Mon, 0971° / 47°0
Morning53°feels 52°
Afternoon67°feels 66°
Evening59°feels 58°
Overnight55°feels 53°
71 °
Alton, Monday, 9 November
Clear. High 71°, low 47°.
Pressure30.06 inHg
Wind6.2 mph SW
Humidity43%
Visibility—
Dew point43°
Tue, 1069° / 53°0
Morning57°feels 56°
Afternoon67°feels 65°
Evening59°feels 58°
Overnight57°feels 56°
69 °
Alton, Tuesday, 10 November
Overcast. High 69°, low 53°.
Pressure30.15 inHg
Wind5.5 mph SE
Humidity52%
Visibility—
Dew point48°
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, MO 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.