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As of 01:07 CDT

Weather in Alton, IL

62°Current weather

Alton, Friday, 30 October, 01:07

Overcast. Feels like 63°. High 77°, low 59°.

Pressure30.18 inHg
Wind3.4 mph NE
Humidity87%
Visibility6.2 mi
Dew point59°

10-day forecast for Alton, IL: 48° to 77°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.

77°
Best day: Friday, October 30
64° · 0.74 in
Worst day: Wednesday, November 4

Tap any day below to see morning, afternoon, evening and overnight.

Sat, 3172° / 61°0Overcast
MorningOvercast63°feels 63°
AfternoonOvercast69°feels 68°
EveningOvercast63°feels 61°
OvernightOvercast66°feels 67°
72 °Overcast

Alton, Saturday, 31 October

Overcast. High 72°, low 61°.

Pressure30.27 inHg
Wind4.1 mph SE
Humidity69%
Visibility6.2 mi
Dew point56°
Sun, 0169° / 59°0.11Rain
MorningLight rain59°feels 59°
AfternoonOvercast69°feels 69°
EveningOvercast62°feels 62°
OvernightOvercast60°feels 59°
69 °Rain

Alton, Sunday, 1 November

Rain. High 69°, low 59°.

Pressure30.27 inHg
Wind8.5 mph SE
Humidity71%
Visibility6.2 mi
Dew point57°
Mon, 0268° / 59°0Overcast
MorningOvercast60°feels 59°
AfternoonOvercast65°feels 66°
EveningOvercast66°feels 66°
OvernightOvercast59°feels 59°
68 °Overcast

Alton, Monday, 2 November

Overcast. High 68°, low 59°.

Pressure30.09 inHg
Wind10.7 mph SE
Humidity84%
Visibility6.2 mi
Dew point59°
Tue, 0371° / 64°0.7Rain
MorningRain65°feels 65°
AfternoonRain65°feels 66°
EveningRain65°feels 66°
OvernightRain65°feels 65°
71 °Rain

Alton, Tuesday, 3 November

Rain. High 71°, low 64°.

Pressure29.91 inHg
Wind14.1 mph S
Humidity94%
Visibility—
Dew point64°
Wed, 0464° / 56°0.74Rain
MorningRain62°feels 62°
AfternoonRain60°feels 59°
EveningRain60°feels 60°
OvernightRain61°feels 62°
64 °Rain

Alton, Wednesday, 4 November

Rain. High 64°, low 56°.

Pressure29.77 inHg
Wind13.4 mph SE
Humidity76%
Visibility—
Dew point53°
Thu, 0564° / 57°0.08Light rain
MorningLight rain61°feels 61°
AfternoonLight rain63°feels 63°
EveningLight rain57°feels 56°
OvernightLight rain58°feels 57°
64 °Light rain

Alton, Thursday, 5 November

Light rain. High 64°, low 57°.

Pressure29.68 inHg
Wind12 mph N
Humidity83%
Visibility—
Dew point58°
Fri, 0664° / 48°0Partly cloudy
MorningPartly cloudy52°feels 50°
AfternoonPartly cloudy61°feels 60°
EveningPartly cloudy56°feels 54°
OvernightPartly cloudy53°feels 51°
64 °Partly cloudy

Alton, Friday, 6 November

Partly cloudy. High 64°, low 48°.

Pressure29.85 inHg
Wind8 mph N
Humidity50%
Visibility—
Dew point42°
Sat, 0764° / 48°0Partly cloudy
MorningPartly cloudy52°feels 50°
AfternoonPartly cloudy62°feels 60°
EveningPartly cloudy56°feels 54°
OvernightPartly cloudy52°feels 50°
64 °Partly cloudy

Alton, Saturday, 7 November

Partly cloudy. High 64°, low 48°.

Pressure30.09 inHg
Wind7.4 mph E
Humidity48%
Visibility—
Dew point41°
Sun, 0857° / 50°0.33Rain
MorningRain52°feels 50°
AfternoonRain57°feels 55°
EveningRain53°feels 52°
OvernightRain52°feels 51°
57 °Rain

Alton, Sunday, 8 November

Rain. High 57°, low 50°.

Pressure29.91 inHg
Wind13.1 mph E
Humidity56%
Visibility—
Dew point41°

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, IL 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.