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As of 22:16 CST

Weather in Alton, IL

58°Current weather

Alton, Sunday, 1 November, 22:16

Fog. Feels like 59°. High 63°, low 58°.

Pressure30.18 inHg
Wind6.9 mph SE
Humidity96%
Visibility3.0 mi
Dew point57°

10-day forecast for Alton, IL: 46° to 71°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

70°
Best day: Monday, November 2
71° · 1.57 in
Worst day: Tuesday, November 3

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

Mon, 0270° / 59°0Overcast
MorningOvercast60°feels 60°
AfternoonOvercast70°feels 70°
EveningOvercast67°feels 67°
OvernightOvercast59°feels 59°
70 °Overcast

Alton, Monday, 2 November

Overcast. High 70°, low 59°.

Pressure30.00 inHg
Wind11.9 mph S
Humidity76%
Visibility6.2 mi
Dew point60°
Tue, 0371° / 63°1.57Heavy rain
MorningOvercast67°feels 68°
AfternoonRain70°feels 70°
EveningRain65°feels 66°
OvernightOvercast67°feels 67°
71 °Heavy rain

Alton, Tuesday, 3 November

Heavy rain. High 71°, low 63°.

Pressure29.80 inHg
Wind17.2 mph S
Humidity76%
Visibility6.2 mi
Dew point63°
Wed, 0466° / 56°0Partly cloudy
MorningClear56°feels 54°
AfternoonPartly cloudy66°feels 64°
EveningClear56°feels 55°
OvernightOvercast58°feels 58°
66 °Partly cloudy

Alton, Wednesday, 4 November

Partly cloudy. High 66°, low 56°.

Pressure29.83 inHg
Wind13.1 mph W
Humidity54%
Visibility6.2 mi
Dew point46°
Thu, 0567° / 49°0.06Light rain
MorningClear54°feels 53°
AfternoonMostly clear66°feels 65°
EveningLight rain55°feels 54°
OvernightClear51°feels 49°
67 °Light rain

Alton, Thursday, 5 November

Light rain. High 67°, low 49°.

Pressure29.83 inHg
Wind8 mph SW
Humidity52%
Visibility6.2 mi
Dew point47°
Fri, 0656° / 46°0.03Light rain
MorningLight rain49°feels 46°
AfternoonLight rain55°feels 54°
EveningLight rain54°feels 52°
OvernightLight rain52°feels 50°
56 °Light rain

Alton, Friday, 6 November

Light rain. High 56°, low 46°.

Pressure29.94 inHg
Wind9.9 mph NW
Humidity71%
Visibility—
Dew point45°
Sat, 0760° / 49°0Overcast
MorningOvercast51°feels 49°
AfternoonOvercast57°feels 55°
EveningOvercast54°feels 53°
OvernightOvercast52°feels 50°
60 °Overcast

Alton, Saturday, 7 November

Overcast. High 60°, low 49°.

Pressure30.03 inHg
Wind6.5 mph E
Humidity59%
Visibility—
Dew point42°
Sun, 0862° / 47°0Overcast
MorningOvercast51°feels 49°
AfternoonOvercast60°feels 57°
EveningOvercast54°feels 52°
OvernightOvercast51°feels 49°
62 °Overcast

Alton, Sunday, 8 November

Overcast. High 62°, low 47°.

Pressure30.15 inHg
Wind5.7 mph E
Humidity48%
Visibility—
Dew point39°
Mon, 0963° / 46°0Clear
MorningClear50°feels 50°
AfternoonClear60°feels 58°
EveningClear55°feels 53°
OvernightClear52°feels 50°
63 °Clear

Alton, Monday, 9 November

Clear. High 63°, low 46°.

Pressure30.06 inHg
Wind5.1 mph N
Humidity49%
Visibility—
Dew point40°
Tue, 1066° / 48°0Clear
MorningClear52°feels 51°
AfternoonClear62°feels 60°
EveningClear56°feels 54°
OvernightClear51°feels 49°
66 °Clear

Alton, Tuesday, 10 November

Clear. High 66°, low 48°.

Pressure30.06 inHg
Wind8.6 mph NW
Humidity46%
Visibility—
Dew point40°

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.