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As of 12:35 CST

Weather in Alton, IL

58°Current weather

Alton, Wednesday, 4 November, 12:35

Overcast. Feels like 57°. High 62°, low 53°.

Pressure29.80 inHg
Wind11.5 mph W
Humidity80%
Visibility6.2 mi
Dew point52°

Two-week outlook for Alton, IL: week one averages a high of 59.8° and week two 61.8°, so week two runs 2° warmer than week one. Around 0.2 inches of precipitation are expected over the 14 days, across 1 wet days. The nearest weekend, November 7: 52°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 4 – November 10)59.8°43.4°0.0 in / 0 d—
2nd (November 11 – November 17)61.8°45.5°0.2 in / 1 d—

Weekend weather

Sat, November 7
Partly cloudy
52°36°
no precip.
Sun, November 8
Clear
61°39°
no precip.
Sat, November 14
Clear
64°42°
no precip.
Sun, November 15
Overcast
64°49°
no precip.
Thu, 0562° / 48°0Clear
62 °Clear

Alton, Thursday, 5 November

Clear. High 62°, low 48°.

Pressure29.88 inHg
Wind10.8 mph W
Humidity52%
Visibility6.2 mi
Dew point42°
Fri, 0654° / 41°0Overcast
54 °Overcast

Alton, Friday, 6 November

Overcast. High 54°, low 41°.

Pressure30.15 inHg
Wind9.7 mph N
Humidity60%
Visibility6.2 mi
Dew point40°
Sat, 0752° / 36°0Partly cloudy
52 °Partly cloudy

Alton, Saturday, 7 November

Partly cloudy. High 52°, low 36°.

Pressure30.30 inHg
Wind3.8 mph N
Humidity49%
Visibility6.2 mi
Dew point33°
Sun, 0861° / 39°0Clear
61 °Clear

Alton, Sunday, 8 November

Clear. High 61°, low 39°.

Pressure30.21 inHg
Wind7.3 mph SW
Humidity58%
Visibility6.2 mi
Dew point43°
Mon, 0964° / 44°0Clear
64 °Clear

Alton, Monday, 9 November

Clear. High 64°, low 44°.

Pressure30.21 inHg
Wind4.5 mph SW
Humidity65%
Visibility—
Dew point48°
Tue, 1064° / 43°0Clear
64 °Clear

Alton, Tuesday, 10 November

Clear. High 64°, low 43°.

Pressure30.09 inHg
Wind8.5 mph N
Humidity36%
Visibility—
Dew point32°
Wed, 1159° / 41°0Overcast
59 °Overcast

Alton, Wednesday, 11 November

Overcast. High 59°, low 41°.

Pressure30.21 inHg
Wind7.1 mph NE
Humidity37%
Visibility—
Dew point29°
Thu, 1257° / 45°0Overcast
57 °Overcast

Alton, Thursday, 12 November

Overcast. High 57°, low 45°.

Pressure30.24 inHg
Wind6.6 mph NE
Humidity44%
Visibility—
Dew point33°
Fri, 1359° / 40°0Clear
59 °Clear

Alton, Friday, 13 November

Clear. High 59°, low 40°.

Pressure30.21 inHg
Wind7.6 mph NW
Humidity42%
Visibility—
Dew point31°
Sat, 1464° / 42°0Clear
64 °Clear

Alton, Saturday, 14 November

Clear. High 64°, low 42°.

Pressure30.18 inHg
Wind7.1 mph W
Humidity42%
Visibility—
Dew point35°
Sun, 1564° / 49°0Overcast
64 °Overcast

Alton, Sunday, 15 November

Overcast. High 64°, low 49°.

Pressure30.18 inHg
Wind5.6 mph SW
Humidity43%
Visibility—
Dew point38°
Mon, 1664° / 53°0.2Rain
64 °Rain

Alton, Monday, 16 November

Rain. High 64°, low 53°.

Pressure30.18 inHg
Wind5.9 mph SE
Humidity70%
Visibility—
Dew point51°
Tue, 1765° / 49°0Clear
65 °Clear

Alton, Tuesday, 17 November

Clear. High 65°, low 49°.

Pressure30.21 inHg
Wind10 mph S
Humidity37%
Visibility—
Dew point35°

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.