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As of 03:05 CST

Weather in Alton, IL

50°Current weather

Alton, Friday, 6 November, 03:05

Overcast. Feels like 49°. High 54°, low 37°.

Pressure30.06 inHg
Wind6.9 mph NW
Humidity94%
Visibility3.0 mi
Dew point48°

10-day forecast for Alton, IL: 33° to 65°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.

65°
Best day: Monday, November 9
46°
Worst day: Friday, November 13

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

Sat, 0753° / 34°0Overcast
MorningOvercast40°feels 40°
AfternoonOvercast53°feels 50°
EveningClear45°feels 45°
OvernightClear35°feels 33°
53 °Overcast

Alton, Saturday, 7 November

Overcast. High 53°, low 34°.

Pressure30.27 inHg
Wind3.3 mph W
Humidity51%
Visibility6.2 mi
Dew point34°
Sun, 0863° / 41°0Mostly clear
MorningClear44°feels 40°
AfternoonClear63°feels 62°
EveningClear51°feels 50°
OvernightClear42°feels 38°
63 °Mostly clear

Alton, Sunday, 8 November

Mostly clear. High 63°, low 41°.

Pressure30.12 inHg
Wind7.7 mph W
Humidity59%
Visibility6.2 mi
Dew point46°
Mon, 0965° / 43°0Clear
MorningOvercast46°feels 44°
AfternoonClear64°feels 63°
EveningClear54°feels 53°
OvernightClear45°feels 45°
65 °Clear

Alton, Monday, 9 November

Clear. High 65°, low 43°.

Pressure30.18 inHg
Wind5.5 mph SW
Humidity61%
Visibility6.2 mi
Dew point48°
Tue, 1065° / 46°0Partly cloudy
MorningPartly cloudy51°feels 48°
AfternoonPartly cloudy61°feels 60°
EveningPartly cloudy55°feels 54°
OvernightClear49°feels 46°
65 °Partly cloudy

Alton, Tuesday, 10 November

Partly cloudy. High 65°, low 46°.

Pressure30.06 inHg
Wind7.2 mph SW
Humidity58%
Visibility—
Dew point46°
Wed, 1162° / 43°0Overcast
MorningOvercast48°feels 45°
AfternoonOvercast59°feels 56°
EveningOvercast54°feels 52°
OvernightOvercast51°feels 49°
62 °Overcast

Alton, Wednesday, 11 November

Overcast. High 62°, low 43°.

Pressure30.09 inHg
Wind7.4 mph N
Humidity46%
Visibility—
Dew point37°
Thu, 1254° / 43°0Partly cloudy
MorningPartly cloudy46°feels 42°
AfternoonPartly cloudy53°feels 49°
EveningPartly cloudy45°feels 39°
OvernightPartly cloudy43°feels 37°
54 °Partly cloudy

Alton, Thursday, 12 November

Partly cloudy. High 54°, low 43°.

Pressure30.00 inHg
Wind13.1 mph N
Humidity49%
Visibility—
Dew point34°
Fri, 1346° / 33°0Overcast
MorningOvercast36°feels 31°
AfternoonOvercast44°feels 41°
EveningOvercast40°feels 38°
OvernightOvercast37°feels 35°
46 °Overcast

Alton, Friday, 13 November

Overcast. High 46°, low 33°.

Pressure30.03 inHg
Wind7.3 mph NW
Humidity37%
Visibility—
Dew point19°
Sat, 1451° / 34°0Clear
MorningClear39°feels 35°
AfternoonClear50°feels 47°
EveningClear49°feels 46°
OvernightClear46°feels 42°
51 °Clear

Alton, Saturday, 14 November

Clear. High 51°, low 34°.

Pressure30.03 inHg
Wind8.5 mph SE
Humidity36%
Visibility—
Dew point22°
Sun, 1557° / 49°0.01Light rain
MorningLight rain50°feels 46°
AfternoonLight rain53°feels 51°
EveningLight rain54°feels 52°
OvernightLight rain53°feels 50°
57 °Light rain

Alton, Sunday, 15 November

Light rain. High 57°, low 49°.

Pressure29.94 inHg
Wind14.7 mph S
Humidity46%
Visibility—
Dew point32°

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.