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As of 01:07 CST

Weather in Alton, IL

40°Current weather

Alton, Sunday, 8 November, 01:07

Clear. Feels like 37°. High 63°, low 36°.

Pressure30.18 inHg
Wind5 mph W
Humidity97%
Visibility6.2 mi
Dew point38°

Two-week outlook for Alton, IL: week one averages a high of 57.3° and week two 65.6°, so week two runs 8.3° warmer than week one. Around 1.1 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, November 8: 63°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 8 – November 14)57.3°39.4°0.0 in / 0 d—
2nd (November 15 – November 21)65.6°49.6°1.0 in / 3 d—

Weekend weather

Sun, November 8
Clear
63°36°
no precip.
Sat, November 14
Clear
47°29°
no precip.
Sun, November 15
Clear
61°35°
no precip.
Sat, November 21
Partly cloudy
68°53°
no precip.
Mon, 0965° / 41°0Clear
65 °Clear

Alton, Monday, 9 November

Clear. High 65°, low 41°.

Pressure30.18 inHg
Wind4.9 mph SW
Humidity52%
Visibility6.2 mi
Dew point44°
Tue, 1066° / 47°0Clear
66 °Clear

Alton, Tuesday, 10 November

Clear. High 66°, low 47°.

Pressure30.09 inHg
Wind4.4 mph W
Humidity62%
Visibility6.2 mi
Dew point50°
Wed, 1165° / 47°0.04Light rain
65 °Light rain

Alton, Wednesday, 11 November

Light rain. High 65°, low 47°.

Pressure29.85 inHg
Wind9.1 mph SW
Humidity71%
Visibility6.2 mi
Dew point56°
Thu, 1251° / 42°0Overcast
51 °Overcast

Alton, Thursday, 12 November

Overcast. High 51°, low 42°.

Pressure29.94 inHg
Wind14.3 mph N
Humidity54%
Visibility—
Dew point34°
Fri, 1344° / 34°0Overcast
44 °Overcast

Alton, Friday, 13 November

Overcast. High 44°, low 34°.

Pressure30.12 inHg
Wind12 mph N
Humidity55%
Visibility—
Dew point27°
Sat, 1447° / 29°0Clear
47 °Clear

Alton, Saturday, 14 November

Clear. High 47°, low 29°.

Pressure30.12 inHg
Wind9.3 mph NW
Humidity39%
Visibility—
Dew point19°
Sun, 1561° / 35°0Clear
61 °Clear

Alton, Sunday, 15 November

Clear. High 61°, low 35°.

Pressure30.12 inHg
Wind9.7 mph SW
Humidity36%
Visibility—
Dew point26°
Mon, 1668° / 46°0Overcast
68 °Overcast

Alton, Monday, 16 November

Overcast. High 68°, low 46°.

Pressure30.09 inHg
Wind8.6 mph S
Humidity38%
Visibility—
Dew point36°
Tue, 1766° / 53°0.22Rain
66 °Rain

Alton, Tuesday, 17 November

Rain. High 66°, low 53°.

Pressure30.00 inHg
Wind14.5 mph S
Humidity62%
Visibility—
Dew point51°
Wed, 1862° / 53°0.7Rain
62 °Rain

Alton, Wednesday, 18 November

Rain. High 62°, low 53°.

Pressure29.91 inHg
Wind15.7 mph W
Humidity45%
Visibility—
Dew point40°
Thu, 1965° / 49°0.08Light rain
65 °Light rain

Alton, Thursday, 19 November

Light rain. High 65°, low 49°.

Pressure29.97 inHg
Wind13.8 mph S
Humidity75%
Visibility—
Dew point55°
Fri, 2069° / 57°0.02Light rain
69 °Light rain

Alton, Friday, 20 November

Light rain. High 69°, low 57°.

Pressure29.83 inHg
Wind17.1 mph SW
Humidity62%
Visibility—
Dew point55°
Sat, 2168° / 53°0Partly cloudy
68 °Partly cloudy

Alton, Saturday, 21 November

Partly cloudy. High 68°, low 53°.

Pressure29.85 inHg
Wind14.7 mph NW
Humidity42%
Visibility—
Dew point40°

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.