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As of 11:30 CST

Weather in Alton, IL

49°Current weather

Alton, Saturday, 7 November, 11:30

Clear. Feels like 45°. High 50°, low 32°.

Pressure30.27 inHg
Wind9.2 mph W
Humidity69%
Visibility6.2 mi
Dew point40°

Two-week outlook for Alton, IL: week one averages a high of 57.9° and week two 61.3°, so week two runs 3.4° warmer than week one. Around 0.1 inches of precipitation are expected over the 14 days, across 1 wet days. The nearest weekend, November 7: 50°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 7 – November 13)57.9°40.2°0.0 in / 0 d—
2nd (November 14 – November 20)61.3°45.2°0.1 in / 1 d—

Weekend weather

Sat, November 7
Clear
50°32°
no precip.
Sun, November 8
Clear
64°39°
no precip.
Sat, November 14
Clear
51°31°
no precip.
Sun, November 15
Mostly clear
60°37°
no precip.
Sun, 0864° / 39°0Clear
64 °Clear

Alton, Sunday, 8 November

Clear. High 64°, low 39°.

Pressure30.12 inHg
Wind7.3 mph W
Humidity59%
Visibility6.2 mi
Dew point44°
Mon, 0963° / 41°0Clear
63 °Clear

Alton, Monday, 9 November

Clear. High 63°, low 41°.

Pressure30.21 inHg
Wind5.4 mph SW
Humidity53%
Visibility6.2 mi
Dew point44°
Tue, 1065° / 47°0Clear
65 °Clear

Alton, Tuesday, 10 November

Clear. High 65°, low 47°.

Pressure30.12 inHg
Wind4.2 mph W
Humidity62%
Visibility6.2 mi
Dew point50°
Wed, 1165° / 48°0Partly cloudy
65 °Partly cloudy

Alton, Wednesday, 11 November

Partly cloudy. High 65°, low 48°.

Pressure29.85 inHg
Wind14.5 mph W
Humidity67%
Visibility—
Dew point52°
Thu, 1252° / 42°0Overcast
52 °Overcast

Alton, Thursday, 12 November

Overcast. High 52°, low 42°.

Pressure29.97 inHg
Wind14.9 mph NW
Humidity51%
Visibility—
Dew point34°
Fri, 1344° / 33°0Overcast
44 °Overcast

Alton, Friday, 13 November

Overcast. High 44°, low 33°.

Pressure29.94 inHg
Wind19.9 mph N
Humidity49%
Visibility—
Dew point23°
Sat, 1451° / 31°0Clear
51 °Clear

Alton, Saturday, 14 November

Clear. High 51°, low 31°.

Pressure30.12 inHg
Wind11.1 mph NW
Humidity31%
Visibility—
Dew point16°
Sun, 1560° / 37°0Mostly clear
60 °Mostly clear

Alton, Sunday, 15 November

Mostly clear. High 60°, low 37°.

Pressure30.18 inHg
Wind9.7 mph SW
Humidity25%
Visibility—
Dew point18°
Mon, 1665° / 44°0Partly cloudy
65 °Partly cloudy

Alton, Monday, 16 November

Partly cloudy. High 65°, low 44°.

Pressure30.21 inHg
Wind9.1 mph SW
Humidity29%
Visibility—
Dew point27°
Tue, 1754° / 51°0.13Light rain
54 °Light rain

Alton, Tuesday, 17 November

Light rain. High 54°, low 51°.

Pressure30.15 inHg
Wind10.6 mph S
Humidity81%
Visibility—
Dew point46°
Wed, 1864° / 52°0.01Light rain
64 °Light rain

Alton, Wednesday, 18 November

Light rain. High 64°, low 52°.

Pressure30.27 inHg
Wind6 mph SW
Humidity67%
Visibility—
Dew point49°
Thu, 1968° / 50°0Overcast
68 °Overcast

Alton, Thursday, 19 November

Overcast. High 68°, low 50°.

Pressure30.21 inHg
Wind9.8 mph S
Humidity52%
Visibility—
Dew point45°
Fri, 2069° / 52°0Overcast
69 °Overcast

Alton, Friday, 20 November

Overcast. High 69°, low 52°.

Pressure30.09 inHg
Wind12.5 mph S
Humidity52%
Visibility—
Dew point47°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Alton, IL, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.