10-Day Weather Forecast for Alton (IL)

Six-hourly outlook through Thursday 10 September. Updated every three hours via MET Norway.

Day
Night
01:00
Morning
07:00
Afternoon
13:00
Evening
19:00
Tuesday
1 Sep
Clear skies
34°C (93°F)
0 mm (0 in)
Clear skies
31°C (88°F)
0 mm (0 in)
Hourly ›
Wednesday
2 Sep
Clear skies
28°C (82°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Mostly sunny
34°C (93°F)
0 mm (0 in)
Clear skies
32°C (90°F)
0 mm (0 in)
Hourly ›
Thursday
3 Sep
Clear skies
28°C (82°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Mostly sunny
35°C (95°F)
0 mm (0 in)
Clear skies
33°C (91°F)
0 mm (0 in)
Hourly ›
Friday
4 Sep
Clear skies
29°C (84°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Clear skies
35°C (95°F)
0 mm (0 in)
Cloudy
33°C (91°F)
0 mm (0 in)
Hourly ›
Saturday
5 Sep
Partly cloudy
29°C (84°F)
0 mm (0 in)
Rain showers
27°C (81°F)
1.2 mm (0.05 in)
Clear skies
34°C (93°F)
0.1 mm (0 in)
Mostly clear
32°C (90°F)
0 mm (0 in)
Hourly ›
Sunday
6 Sep
Clear skies
28°C (82°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Clear skies
33°C (91°F)
0 mm (0 in)
Cloudy
30°C (86°F)
0 mm (0 in)
Hourly ›
Monday
7 Sep
Partly cloudy
26°C (79°F)
0 mm (0 in)
Mostly sunny
23°C (73°F)
0 mm (0 in)
Mostly sunny
32°C (90°F)
0 mm (0 in)
Cloudy
31°C (88°F)
0 mm (0 in)
Hourly ›
Tuesday
8 Sep
Cloudy
26°C (79°F)
0 mm (0 in)
Cloudy
24°C (75°F)
0 mm (0 in)
Cloudy
35°C (95°F)
0 mm (0 in)
Cloudy
34°C (93°F)
0 mm (0 in)
Hourly ›
Wednesday
9 Sep
Partly cloudy
30°C (86°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Clear skies
37°C (99°F)
0.1 mm (0 in)
Clear skies
35°C (95°F)
0 mm (0 in)
Hourly ›
Thursday
10 Sep
Clear skies
31°C (88°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0 mm (0 in)
Clear skies
36°C (97°F)
0.3 mm (0.01 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Alton this week?

Today's weather - Tuesday 1 Sep

For the rest of Tuesday the predicted weather in Alton is clear skies. The temperature will be around 34°C (93°F).

Tomorrow's weather - Wednesday 2 Sep

Tomorrow's weather in Alton will be mostly sunny. Temperatures will range from a warm 26°C (79°F) to a very warm 34°C (93°F).

10-Day Weather Forecast

Over the next 10 days, temperatures in Alton will be will vary between 32°C (90°F) and 35°C (95°F), with average daytime highs of 34°C (93°F) and nighttime lows of 26°C (79°F) over this period. Compared to normal September conditions, this is much warmer than usual. The next 10 days will feature plenty of sunshine. Expect much less rainfall than usual (compared to average September levels), the days are characterized by mostly dry conditions. Precipitation is likely on approximately 1 day (Sat). Wind patterns will be generally calm.

Weather Forecast FAQ for Alton

When will be the warmest day next week?

The warmest day is expected to be Friday with a high of 35°C (95°F).

When will be the coldest day?

The coldest day is forecasted for Monday with a low of 23°C (73°F).

Will it rain next week in Alton?

Yes, rain is expected on 1 day , specifically on Sat.

How much rainfall is expected next week?

A total of 1 mm (0.04 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 23°C (73°F) to 35°C (95°F).

More about Alton

Explore the full Alton climate overview with monthly averages, or check rainfall data and temperature by month.

Alton weather by month

Browse monthly averages for Alton: climate by month with temperature, rainfall and sunshine.

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