10-Day Weather Forecast for St. Charles (MO)

Six-hourly outlook through Monday 7 September. Updated every three hours via MET Norway.

Day
Night
01:00
Morning
07:00
Afternoon
13:00
Evening
19:00
Friday
28 Aug
Mostly clear
26°C (79°F)
0 mm (0 in)
Hourly ›
Saturday
29 Aug
Partly cloudy
21°C (70°F)
0 mm (0 in)
Partly cloudy
20°C (68°F)
0 mm (0 in)
Partly cloudy
30°C (86°F)
0 mm (0 in)
Mostly clear
28°C (82°F)
0 mm (0 in)
Hourly ›
Sunday
30 Aug
Partly cloudy
23°C (73°F)
0 mm (0 in)
Partly cloudy
21°C (70°F)
0 mm (0 in)
Partly cloudy
33°C (91°F)
0 mm (0 in)
Partly cloudy
31°C (88°F)
0 mm (0 in)
Hourly ›
Monday
31 Aug
Clear skies
26°C (79°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Clear skies
35°C (95°F)
0 mm (0 in)
Clear skies
34°C (93°F)
0 mm (0 in)
Hourly ›
Tuesday
1 Sep
Clear skies
28°C (82°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Clear skies
36°C (97°F)
0 mm (0 in)
Clear skies
35°C (95°F)
0 mm (0 in)
Hourly ›
Wednesday
2 Sep
Clear skies
30°C (86°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0 mm (0 in)
Mostly sunny
37°C (99°F)
0 mm (0 in)
Mostly clear
36°C (97°F)
0 mm (0 in)
Hourly ›
Thursday
3 Sep
Clear skies
30°C (86°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0.2 mm (0.01 in)
Mostly sunny
35°C (95°F)
0 mm (0 in)
Mostly clear
34°C (93°F)
0 mm (0 in)
Hourly ›
Friday
4 Sep
Mostly clear
30°C (86°F)
0 mm (0 in)
Rain showers
27°C (81°F)
1.4 mm (0.1 in)
Cloudy
32°C (90°F)
0 mm (0 in)
Partly cloudy
31°C (88°F)
0 mm (0 in)
Hourly ›
Saturday
5 Sep
Clear skies
26°C (79°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Clear skies
33°C (91°F)
0 mm (0 in)
Partly cloudy
33°C (91°F)
0 mm (0 in)
Hourly ›
Sunday
6 Sep
Clear skies
28°C (82°F)
0 mm (0 in)
Cloudy
26°C (79°F)
0 mm (0 in)
Rain showers
36°C (97°F)
3.5 mm (0.1 in)
Clear skies
30°C (86°F)
0 mm (0 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in St. Charles this week?

Today's weather - Friday 28 Aug

This evening, the weather in St. Charles will be mostly clear, with temperatures around 26°C (79°F), dropping to 21°C (70°F) overnight.

Tomorrow's weather - Saturday 29 Aug

For Saturday the forecast for St. Charles is partly cloudy. Temperatures will range from a pleasant 20°C (68°F) to a warm 30°C (86°F).

10-Day Weather Forecast

Over the next 10 days, temperatures in St. Charles will be will get warmer, maximum temperatures reach 37°C (99°F) on Wednesday, with average daytime highs of 33°C (91°F) and nighttime lows of 25°C (77°F) over this period. These values are a bit warmer than usual for August. There will be plenty of sunshine during this period. Rainfall is expected to be much less than usual (compared to typical August conditions). The forecast shows mostly dry conditions. Precipitation is expected on roughly 1 day (Fri). Wind conditions will be generally calm.

Weather Forecast FAQ for St. Charles

When will be the warmest day next week?

The warmest day is expected to be Wednesday with a high of 37°C (99°F).

When will be the coldest day?

The coldest day is forecasted for Saturday with a low of 20°C (68°F).

Will it rain next week in St. Charles?

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

How much rainfall is expected next week?

A total of 2 mm (0.1 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 20°C (68°F) to 37°C (99°F).

More about St. Charles

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

St. Charles weather by month

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

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