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As of 17:39 CST

Weather in Alton, IL

64°Current weather

Alton, Monday, 2 November, 17:39

Fog. Feels like 65°. High 65°, low 57°.

Pressure29.94 inHg
Wind11.5 mph S
Humidity97%
Visibility5.0 mi
Dew point64°

10-day forecast for Alton, IL: 39° to 69°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

65°
Best day: Thursday, November 5
69° · 1.22 in
Worst day: Tuesday, November 3

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

Tue, 0369° / 61°1.22Heavy rain
MorningLight rain65°feels 65°
AfternoonLight rain67°feels 67°
EveningLight rain63°feels 64°
OvernightOvercast66°feels 66°
69 °Heavy rain

Alton, Tuesday, 3 November

Heavy rain. High 69°, low 61°.

Pressure29.80 inHg
Wind14.4 mph S
Humidity87%
Visibility1.8 mi
Dew point66°
Wed, 0462° / 53°0Overcast
MorningOvercast57°feels 56°
AfternoonOvercast62°feels 61°
EveningPartly cloudy56°feels 55°
OvernightOvercast57°feels 57°
62 °Overcast

Alton, Wednesday, 4 November

Overcast. High 62°, low 53°.

Pressure29.83 inHg
Wind12.2 mph W
Humidity63%
Visibility6.2 mi
Dew point47°
Thu, 0565° / 49°0Clear
MorningClear53°feels 51°
AfternoonPartly cloudy65°feels 64°
EveningOvercast58°feels 57°
OvernightClear51°feels 49°
65 °Clear

Alton, Thursday, 5 November

Clear. High 65°, low 49°.

Pressure29.83 inHg
Wind9.8 mph SW
Humidity47%
Visibility6.2 mi
Dew point44°
Fri, 0656° / 49°0.01Light rain
MorningOvercast52°feels 51°
AfternoonOvercast55°feels 53°
EveningLight rain54°feels 52°
OvernightOvercast50°feels 48°
56 °Light rain

Alton, Friday, 6 November

Light rain. High 56°, low 49°.

Pressure29.94 inHg
Wind9.1 mph NW
Humidity75%
Visibility6.2 mi
Dew point46°
Sat, 0757° / 49°0Overcast
MorningOvercast52°feels 51°
AfternoonOvercast56°feels 54°
EveningOvercast53°feels 51°
OvernightOvercast50°feels 48°
57 °Overcast

Alton, Saturday, 7 November

Overcast. High 57°, low 49°.

Pressure30.09 inHg
Wind6.9 mph NW
Humidity60%
Visibility—
Dew point42°
Sun, 0850° / 47°0.01Light rain
MorningLight rain49°feels 43°
AfternoonLight rain49°feels 42°
EveningLight rain47°feels 41°
OvernightLight rain47°feels 41°
50 °Light rain

Alton, Sunday, 8 November

Light rain. High 50°, low 47°.

Pressure29.88 inHg
Wind17.6 mph W
Humidity73%
Visibility—
Dew point40°
Mon, 0955° / 39°0Overcast
MorningOvercast43°feels 38°
AfternoonOvercast53°feels 50°
EveningOvercast47°feels 45°
OvernightOvercast44°feels 41°
55 °Overcast

Alton, Monday, 9 November

Overcast. High 55°, low 39°.

Pressure30.12 inHg
Wind11.6 mph NW
Humidity45%
Visibility—
Dew point31°
Tue, 1062° / 43°0Clear
MorningClear48°feels 45°
AfternoonClear60°feels 57°
EveningClear51°feels 49°
OvernightClear47°feels 44°
62 °Clear

Alton, Tuesday, 10 November

Clear. High 62°, low 43°.

Pressure30.03 inHg
Wind12 mph NW
Humidity39%
Visibility—
Dew point34°
Wed, 1158° / 44°0.02Light rain
MorningLight rain48°feels 47°
AfternoonLight rain58°feels 55°
EveningLight rain55°feels 53°
OvernightLight rain53°feels 52°
58 °Light rain

Alton, Wednesday, 11 November

Light rain. High 58°, low 44°.

Pressure30.03 inHg
Wind6 mph S
Humidity45%
Visibility—
Dew point35°

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.