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As of 00:26 CST

Weather in Alton, IL

32°Current weather

Alton, Saturday, 14 November, 00:26

Clear. Feels like 32°. High 47°, low 31°.

Pressure30.18 inHg
Wind0 mph N
Humidity80%
Visibility6.2 mi
Dew point27°

Two-week outlook for Alton, IL: week one averages a high of 56.3° and week two 45°, so week two runs 11.3° cooler than week one. Around 0.6 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, November 14: 47°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 14 – November 20)56.3°39.2°0.2 in / 1 d—
2nd (November 21 – November 27)45°31.2°0.4 in / 2 d—

Weekend weather

Sat, November 14
Clear
47°31°
no precip.
Sun, November 15
Partly cloudy
50°31°
no precip.
Sat, November 21
Light rain
70°53°
0.04 in
Sun, November 22
Light snow
42°28°
no precip.
Sun, 1550° / 31°0Partly cloudy
50 °Partly cloudy

Alton, Sunday, 15 November

Partly cloudy. High 50°, low 31°.

Pressure30.47 inHg
Wind2.4 mph SE
Humidity51%
Visibility6.2 mi
Dew point31°
Mon, 1653° / 35°0Clear
53 °Clear

Alton, Monday, 16 November

Clear. High 53°, low 35°.

Pressure30.53 inHg
Wind3.4 mph S
Humidity48%
Visibility6.2 mi
Dew point33°
Tue, 1753° / 36°0Clear
53 °Clear

Alton, Tuesday, 17 November

Clear. High 53°, low 36°.

Pressure30.47 inHg
Wind6.4 mph S
Humidity56%
Visibility6.2 mi
Dew point37°
Wed, 1858° / 38°0Overcast
58 °Overcast

Alton, Wednesday, 18 November

Overcast. High 58°, low 38°.

Pressure30.33 inHg
Wind10.6 mph SE
Humidity55%
Visibility—
Dew point38°
Thu, 1964° / 48°0.23Rain
64 °Rain

Alton, Thursday, 19 November

Rain. High 64°, low 48°.

Pressure30.30 inHg
Wind8.5 mph S
Humidity56%
Visibility—
Dew point46°
Fri, 2069° / 56°0Partly cloudy
69 °Partly cloudy

Alton, Friday, 20 November

Partly cloudy. High 69°, low 56°.

Pressure30.24 inHg
Wind10.2 mph S
Humidity62%
Visibility—
Dew point52°
Sat, 2170° / 53°0.04Light rain
70 °Light rain

Alton, Saturday, 21 November

Light rain. High 70°, low 53°.

Pressure29.94 inHg
Wind19.5 mph W
Humidity40%
Visibility—
Dew point41°
Sun, 2242° / 28°0Light snow
42 °Light snow

Alton, Sunday, 22 November

Light snow. High 42°, low 28°.

Pressure30.12 inHg
Wind21.7 mph NW
Humidity59%
Visibility—
Dew point23°
Mon, 2329° / 23°0.02Light snow
29 °Light snow

Alton, Monday, 23 November

Light snow. High 29°, low 23°.

Pressure30.24 inHg
Wind15.1 mph NW
Humidity51%
Visibility—
Dew point12°
Tue, 2432° / 16°0Clear
32 °Clear

Alton, Tuesday, 24 November

Clear. High 32°, low 16°.

Pressure30.39 inHg
Wind11.7 mph NW
Humidity32%
Visibility—
Dew point2°
Wed, 2544° / 24°0Overcast
44 °Overcast

Alton, Wednesday, 25 November

Overcast. High 44°, low 24°.

Pressure30.21 inHg
Wind14 mph S
Humidity22%
Visibility—
Dew point2°
Thu, 2647° / 35°0Overcast
47 °Overcast

Alton, Thursday, 26 November

Overcast. High 47°, low 35°.

Pressure30.21 inHg
Wind11.5 mph SW
Humidity48%
Visibility—
Dew point25°
Fri, 2751° / 41°0.34Rain
51 °Rain

Alton, Friday, 27 November

Rain. High 51°, low 41°.

Pressure30.09 inHg
Wind20.8 mph S
Humidity92%
Visibility—
Dew point42°

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.