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As of 12:41 CDT

Weather in Alton, IL

67°Current weather

Alton, Saturday, 31 October, 12:41

Clear. Feels like 67°. High 68°, low 58°.

Pressure30.24 inHg
Wind8.1 mph E
Humidity55%
Visibility6.2 mi
Dew point51°

Two-week outlook for Alton, IL: week one averages a high of 65.4° and week two 60.2°, so week two runs 5.2° cooler than week one. Around 1.0 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, October 31: 68°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 31 – November 6)65.4°56.6°1.0 in / 2 d—
2nd (November 7 – November 13)60.2°46.6°0.0 in / 0 d—

Weekend weather

Sat, October 31
Mostly clear
68°58°
no precip.
Sun, November 1
Overcast
69°60°
no precip.
Sat, November 7
Overcast
59°46°
no precip.
Sun, November 8
Overcast
60°49°
no precip.
Sun, 0169° / 60°0Overcast
69 °Overcast

Alton, Sunday, 1 November

Overcast. High 69°, low 60°.

Pressure30.27 inHg
Wind15 mph SE
Humidity64%
Visibility6.2 mi
Dew point53°
Mon, 0266° / 57°0Overcast
66 °Overcast

Alton, Monday, 2 November

Overcast. High 66°, low 57°.

Pressure30.06 inHg
Wind10.2 mph S
Humidity82%
Visibility6.2 mi
Dew point58°
Tue, 0370° / 65°0.36Rain
70 °Rain

Alton, Tuesday, 3 November

Rain. High 70°, low 65°.

Pressure29.85 inHg
Wind17.1 mph SE
Humidity81%
Visibility4.1 mi
Dew point63°
Wed, 0463° / 55°0.61Rain
63 °Rain

Alton, Wednesday, 4 November

Rain. High 63°, low 55°.

Pressure29.71 inHg
Wind10 mph SW
Humidity80%
Visibility6.2 mi
Dew point56°
Thu, 0560° / 50°0Overcast
60 °Overcast

Alton, Thursday, 5 November

Overcast. High 60°, low 50°.

Pressure29.85 inHg
Wind9.9 mph W
Humidity67%
Visibility—
Dew point47°
Fri, 0662° / 52°0.01Light rain
62 °Light rain

Alton, Friday, 6 November

Light rain. High 62°, low 52°.

Pressure29.88 inHg
Wind9.9 mph N
Humidity59%
Visibility—
Dew point44°
Sat, 0759° / 46°0Overcast
59 °Overcast

Alton, Saturday, 7 November

Overcast. High 59°, low 46°.

Pressure29.91 inHg
Wind5.8 mph N
Humidity50%
Visibility—
Dew point38°
Sun, 0860° / 49°0Overcast
60 °Overcast

Alton, Sunday, 8 November

Overcast. High 60°, low 49°.

Pressure29.94 inHg
Wind14.1 mph N
Humidity48%
Visibility—
Dew point38°
Mon, 0958° / 48°0Overcast
58 °Overcast

Alton, Monday, 9 November

Overcast. High 58°, low 48°.

Pressure30.00 inHg
Wind12.5 mph N
Humidity67%
Visibility—
Dew point45°
Tue, 1064° / 46°0Clear
64 °Clear

Alton, Tuesday, 10 November

Clear. High 64°, low 46°.

Pressure30.12 inHg
Wind6.4 mph N
Humidity52%
Visibility—
Dew point42°
Wed, 1162° / 48°0Overcast
62 °Overcast

Alton, Wednesday, 11 November

Overcast. High 62°, low 48°.

Pressure29.94 inHg
Wind16.4 mph NW
Humidity48%
Visibility—
Dew point40°
Thu, 1259° / 47°0Overcast
59 °Overcast

Alton, Thursday, 12 November

Overcast. High 59°, low 47°.

Pressure30.06 inHg
Wind13.9 mph N
Humidity55%
Visibility—
Dew point42°
Fri, 1361° / 42°0Mostly clear
61 °Mostly clear

Alton, Friday, 13 November

Mostly clear. High 61°, low 42°.

Pressure30.12 inHg
Wind6.8 mph S
Humidity42%
Visibility—
Dew point32°

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.