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As of 10:14 CST

Weather in Alton, IL

50°Current weather

Alton, Friday, 6 November, 10:14

Overcast. Feels like 49°. High 52°, low 38°.

Pressure30.18 inHg
Wind4 mph S
Humidity83%
Visibility6.2 mi
Dew point45°

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: Tuesday, November 10
46°
Worst day: Friday, November 13

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

Sat, 0752° / 35°0Overcast
MorningOvercast40°feels 40°
AfternoonOvercast52°feels 49°
EveningClear44°feels 44°
OvernightClear36°feels 36°
52 °Overcast

Alton, Saturday, 7 November

Overcast. High 52°, low 35°.

Pressure30.24 inHg
Wind2.8 mph W
Humidity53%
Visibility6.2 mi
Dew point34°
Sun, 0863° / 40°0Clear
MorningClear43°feels 40°
AfternoonClear63°feels 61°
EveningClear52°feels 51°
OvernightClear41°feels 38°
63 °Clear

Alton, Sunday, 8 November

Clear. High 63°, low 40°.

Pressure30.15 inHg
Wind7.3 mph W
Humidity59%
Visibility6.2 mi
Dew point45°
Mon, 0965° / 42°0Clear
MorningOvercast46°feels 43°
AfternoonClear64°feels 63°
EveningClear54°feels 53°
OvernightClear45°feels 43°
65 °Clear

Alton, Monday, 9 November

Clear. High 65°, low 42°.

Pressure30.18 inHg
Wind5.1 mph SW
Humidity56%
Visibility6.2 mi
Dew point46°
Tue, 1065° / 47°0Clear
MorningClear52°feels 50°
AfternoonClear62°feels 61°
EveningClear55°feels 55°
OvernightClear49°feels 46°
65 °Clear

Alton, Tuesday, 10 November

Clear. High 65°, low 47°.

Pressure30.06 inHg
Wind7.1 mph SW
Humidity60%
Visibility—
Dew point47°
Wed, 1165° / 45°0Clear
MorningClear50°feels 49°
AfternoonClear62°feels 61°
EveningClear56°feels 55°
OvernightClear52°feels 51°
65 °Clear

Alton, Wednesday, 11 November

Clear. High 65°, low 45°.

Pressure30.00 inHg
Wind8.9 mph W
Humidity50%
Visibility—
Dew point42°
Thu, 1251° / 41°0Overcast
MorningOvercast44°feels 40°
AfternoonOvercast49°feels 45°
EveningOvercast44°feels 40°
OvernightOvercast41°feels 36°
51 °Overcast

Alton, Thursday, 12 November

Overcast. High 51°, low 41°.

Pressure30.18 inHg
Wind11 mph N
Humidity42%
Visibility—
Dew point26°
Fri, 1346° / 33°0Overcast
MorningOvercast37°feels 31°
AfternoonOvercast44°feels 40°
EveningOvercast40°feels 37°
OvernightOvercast37°feels 34°
46 °Overcast

Alton, Friday, 13 November

Overcast. High 46°, low 33°.

Pressure30.12 inHg
Wind7.8 mph NW
Humidity44%
Visibility—
Dew point22°
Sat, 1453° / 35°0Clear
MorningClear39°feels 38°
AfternoonClear49°feels 46°
EveningClear45°feels 43°
OvernightClear42°feels 39°
53 °Clear

Alton, Saturday, 14 November

Clear. High 53°, low 35°.

Pressure30.21 inHg
Wind6.3 mph SE
Humidity41%
Visibility—
Dew point25°
Sun, 1564° / 41°0Clear
MorningClear46°feels 42°
AfternoonClear59°feels 56°
EveningClear54°feels 52°
OvernightClear49°feels 46°
64 °Clear

Alton, Sunday, 15 November

Clear. High 64°, low 41°.

Pressure30.24 inHg
Wind10.6 mph S
Humidity35%
Visibility—
Dew point29°

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.