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As of 09:57 CST

Weather in Alton, IL

59°Current weather

Alton, Monday, 2 November, 09:57

Overcast. Feels like 59°. High 66°, low 57°.

Pressure30.06 inHg
Wind4 mph NW
Humidity97%
Visibility6.2 mi
Dew point58°

10-day forecast for Alton, IL: 41° to 71°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.

66°
Best day: Monday, November 2
71° · 1.07 in
Worst day: Tuesday, November 3

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

Tue, 0371° / 63°1.07Heavy rain
MorningLight rain66°feels 67°
AfternoonHeavy rain68°feels 68°
EveningRain65°feels 65°
OvernightOvercast67°feels 67°
71 °Heavy rain

Alton, Tuesday, 3 November

Heavy rain. High 71°, low 63°.

Pressure29.83 inHg
Wind19.3 mph S
Humidity63%
Visibility6.2 mi
Dew point62°
Wed, 0464° / 52°0.09Rain
MorningOvercast57°feels 56°
AfternoonPartly cloudy61°feels 60°
EveningClear54°feels 53°
OvernightLight rain61°feels 61°
64 °Rain

Alton, Wednesday, 4 November

Rain. High 64°, low 52°.

Pressure29.83 inHg
Wind12.2 mph W
Humidity62%
Visibility6.2 mi
Dew point47°
Thu, 0566° / 49°0.06Light rain
MorningClear52°feels 51°
AfternoonClear66°feels 64°
EveningLight rain56°feels 54°
OvernightClear51°feels 50°
66 °Light rain

Alton, Thursday, 5 November

Light rain. High 66°, low 49°.

Pressure29.85 inHg
Wind9.2 mph W
Humidity48%
Visibility6.2 mi
Dew point44°
Fri, 0656° / 47°0Overcast
MorningClear50°feels 49°
AfternoonOvercast56°feels 54°
EveningOvercast53°feels 51°
OvernightMostly clear50°feels 47°
56 °Overcast

Alton, Friday, 6 November

Overcast. High 56°, low 47°.

Pressure29.97 inHg
Wind11.5 mph NW
Humidity56%
Visibility—
Dew point39°
Sat, 0758° / 49°0Overcast
MorningOvercast51°feels 50°
AfternoonOvercast56°feels 55°
EveningOvercast51°feels 50°
OvernightOvercast50°feels 48°
58 °Overcast

Alton, Saturday, 7 November

Overcast. High 58°, low 49°.

Pressure30.03 inHg
Wind6.6 mph W
Humidity58%
Visibility—
Dew point42°
Sun, 0850° / 46°0.06Light rain
MorningLight rain47°feels 41°
AfternoonLight rain47°feels 41°
EveningLight rain49°feels 44°
OvernightLight rain48°feels 43°
50 °Light rain

Alton, Sunday, 8 November

Light rain. High 50°, low 46°.

Pressure29.77 inHg
Wind15.1 mph N
Humidity82%
Visibility—
Dew point41°
Mon, 0958° / 41°0Overcast
MorningOvercast45°feels 41°
AfternoonOvercast54°feels 52°
EveningOvercast51°feels 48°
OvernightOvercast48°feels 44°
58 °Overcast

Alton, Monday, 9 November

Overcast. High 58°, low 41°.

Pressure30.06 inHg
Wind10.2 mph W
Humidity47%
Visibility—
Dew point33°
Tue, 1061° / 43°0Clear
MorningClear48°feels 44°
AfternoonClear58°feels 55°
EveningClear52°feels 49°
OvernightClear49°feels 46°
61 °Clear

Alton, Tuesday, 10 November

Clear. High 61°, low 43°.

Pressure30.12 inHg
Wind9.1 mph NW
Humidity40%
Visibility—
Dew point33°
Wed, 1155° / 49°0.34Rain
MorningRain50°feels 47°
AfternoonRain52°feels 51°
EveningRain55°feels 54°
OvernightRain53°feels 52°
55 °Rain

Alton, Wednesday, 11 November

Rain. High 55°, low 49°.

Pressure29.97 inHg
Wind10.5 mph SE
Humidity89%
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, 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.