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As of 14:56 CDT

Weather in Alton, IL

70°Current weather

Alton, Tuesday, 27 October, 14:56

Overcast. Feels like 69°. High 70°, low 50°.

Pressure30.18 inHg
Wind2 mph NW
Humidity61%
Visibility6.2 mi
Dew point55°

10-day forecast for Alton, IL: 50° to 78°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

78°
Best day: Wednesday, October 28
59° · 1.23 in
Worst day: Wednesday, November 4

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

Wed, 2878° / 51°0Clear
MorningClear53°feels 52°
AfternoonClear77°feels 76°
EveningClear62°feels 61°
OvernightOvercast53°feels 52°
78 °Clear

Alton, Wednesday, 28 October

Clear. High 78°, low 51°.

Pressure30.21 inHg
Wind6.9 mph S
Humidity55%
Visibility6.2 mi
Dew point54°
Thu, 2976° / 54°0Clear
MorningClear57°feels 56°
AfternoonOvercast75°feels 75°
EveningPartly cloudy68°feels 68°
OvernightClear56°feels 55°
76 °Clear

Alton, Thursday, 29 October

Clear. High 76°, low 54°.

Pressure30.15 inHg
Wind6.3 mph SW
Humidity58%
Visibility6.2 mi
Dew point57°
Fri, 3070° / 58°0.02Light rain
MorningOvercast58°feels 59°
AfternoonLight rain68°feels 69°
EveningOvercast65°feels 66°
OvernightClear60°feels 60°
70 °Light rain

Alton, Friday, 30 October

Light rain. High 70°, low 58°.

Pressure30.24 inHg
Wind6.8 mph SE
Humidity73%
Visibility6.2 mi
Dew point61°
Sat, 3170° / 60°0Overcast
MorningOvercast61°feels 61°
AfternoonOvercast69°feels 68°
EveningOvercast64°feels 64°
OvernightOvercast62°feels 62°
70 °Overcast

Alton, Saturday, 31 October

Overcast. High 70°, low 60°.

Pressure30.21 inHg
Wind3.8 mph S
Humidity74%
Visibility6.2 mi
Dew point58°
Sun, 0166° / 60°0.11Light rain
MorningLight rain62°feels 62°
AfternoonLight rain65°feels 65°
EveningLight rain61°feels 61°
OvernightLight rain61°feels 62°
66 °Light rain

Alton, Sunday, 1 November

Light rain. High 66°, low 60°.

Pressure30.15 inHg
Wind8.8 mph SE
Humidity71%
Visibility—
Dew point56°
Mon, 0271° / 60°0.02Light rain
MorningLight rain63°feels 63°
AfternoonLight rain69°feels 69°
EveningLight rain68°feels 67°
OvernightLight rain64°feels 64°
71 °Light rain

Alton, Monday, 2 November

Light rain. High 71°, low 60°.

Pressure29.83 inHg
Wind6.9 mph W
Humidity65%
Visibility—
Dew point56°
Tue, 0362° / 59°0.5Rain
MorningRain60°feels 60°
AfternoonRain60°feels 60°
EveningRain59°feels 59°
OvernightRain59°feels 59°
62 °Rain

Alton, Tuesday, 3 November

Rain. High 62°, low 59°.

Pressure29.85 inHg
Wind16.5 mph E
Humidity94%
Visibility—
Dew point58°
Wed, 0459° / 55°1.23Heavy rain
MorningHeavy rain56°feels 55°
AfternoonHeavy rain58°feels 57°
EveningHeavy rain58°feels 58°
OvernightHeavy rain58°feels 58°
59 °Heavy rain

Alton, Wednesday, 4 November

Heavy rain. High 59°, low 55°.

Pressure29.74 inHg
Wind17.4 mph E
Humidity85%
Visibility—
Dew point53°
Thu, 0562° / 55°0.47Rain
MorningRain60°feels 60°
AfternoonRain61°feels 61°
EveningRain57°feels 57°
OvernightRain56°feels 56°
62 °Rain

Alton, Thursday, 5 November

Rain. High 62°, low 55°.

Pressure29.56 inHg
Wind13.1 mph NW
Humidity91%
Visibility—
Dew point59°

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.