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As of 22:58 CDT

Weather in Alton, IL

64°Current weather

Alton, Thursday, 29 October, 22:58

Overcast. Feels like 65°. High 80°, low 57°.

Pressure30.18 inHg
Wind3.4 mph E
Humidity88%
Visibility6.2 mi
Dew point61°

Two-week outlook for Alton, IL: week one averages a high of 71.8° and week two 58.5°, so week two runs 13.3° cooler than week one. Around 2.0 inches of precipitation are expected over the 14 days, across 6 wet days. The nearest weekend, October 31: 72°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 29 – November 4)71.8°59.2°1.6 in / 4 d—
2nd (November 5 – November 11)58.5°49.1°0.4 in / 2 d—

Weekend weather

Sat, October 31
Overcast
72°61°
no precip.
Sun, November 1
Rain
69°59°
0.11 in
Sat, November 7
Partly cloudy
64°48°
no precip.
Sun, November 8
Rain
57°50°
0.33 in
Fri, 3077° / 59°0Overcast
77 °Overcast

Alton, Friday, 30 October

Overcast. High 77°, low 59°.

Pressure30.24 inHg
Wind7.9 mph SE
Humidity66%
Visibility6.2 mi
Dew point58°
Sat, 3172° / 61°0Overcast
72 °Overcast

Alton, Saturday, 31 October

Overcast. High 72°, low 61°.

Pressure30.27 inHg
Wind4.1 mph SE
Humidity69%
Visibility6.2 mi
Dew point56°
Sun, 0169° / 59°0.11Rain
69 °Rain

Alton, Sunday, 1 November

Rain. High 69°, low 59°.

Pressure30.27 inHg
Wind8.5 mph SE
Humidity71%
Visibility6.2 mi
Dew point57°
Mon, 0268° / 59°0Overcast
68 °Overcast

Alton, Monday, 2 November

Overcast. High 68°, low 59°.

Pressure30.09 inHg
Wind10.7 mph SE
Humidity84%
Visibility6.2 mi
Dew point59°
Tue, 0371° / 64°0.7Rain
71 °Rain

Alton, Tuesday, 3 November

Rain. High 71°, low 64°.

Pressure29.91 inHg
Wind14.1 mph S
Humidity94%
Visibility—
Dew point64°
Wed, 0464° / 56°0.74Rain
64 °Rain

Alton, Wednesday, 4 November

Rain. High 64°, low 56°.

Pressure29.77 inHg
Wind13.4 mph SE
Humidity76%
Visibility—
Dew point53°
Thu, 0564° / 57°0.08Light rain
64 °Light rain

Alton, Thursday, 5 November

Light rain. High 64°, low 57°.

Pressure29.68 inHg
Wind12 mph N
Humidity83%
Visibility—
Dew point58°
Fri, 0664° / 48°0Partly cloudy
64 °Partly cloudy

Alton, Friday, 6 November

Partly cloudy. High 64°, low 48°.

Pressure29.85 inHg
Wind8 mph N
Humidity50%
Visibility—
Dew point42°
Sat, 0764° / 48°0Partly cloudy
64 °Partly cloudy

Alton, Saturday, 7 November

Partly cloudy. High 64°, low 48°.

Pressure30.09 inHg
Wind7.4 mph E
Humidity48%
Visibility—
Dew point41°
Sun, 0857° / 50°0.33Rain
57 °Rain

Alton, Sunday, 8 November

Rain. High 57°, low 50°.

Pressure29.91 inHg
Wind13.1 mph E
Humidity56%
Visibility—
Dew point41°
Mon, 0955° / 49°0.02Light rain
55 °Light rain

Alton, Monday, 9 November

Light rain. High 55°, low 49°.

Pressure29.91 inHg
Wind10.4 mph NW
Humidity72%
Visibility—
Dew point46°
Tue, 1049° / 46°0Overcast
49 °Overcast

Alton, Tuesday, 10 November

Overcast. High 49°, low 46°.

Pressure30.15 inHg
Wind11.2 mph N
Humidity65%
Visibility—
Dew point36°
Wed, 1155° / 45°0Overcast
55 °Overcast

Alton, Wednesday, 11 November

Overcast. High 55°, low 45°.

Pressure30.00 inHg
Wind11.3 mph S
Humidity48%
Visibility—
Dew point33°

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.