Extended 10-day forecasts, Decatur (IL)
Hourly detail for the next 48 hours, six-hourly segments for the rest of the week.
This is the 10-day extended forecast for Decatur, the United States of America. The forecast is updated every three hours and displays the temperature, weather conditions, wind direction and speed, as well as the chance of precipitation.
Check out our September climate page to see if the current temperatures in Decatur is typical for this time of year.
Today · Wednesday 2 Sep
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 01:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 66% | S 4 m/s (8 knots) |
| 02:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 67% | S 4 m/s (8 knots) |
| 03:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 69% | S 4 m/s (8 knots) |
| 04:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 70% | SW 4 m/s (8 knots) |
| 05:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 70% | SW 4 m/s (8 knots) |
| 06:00 |
Clear skies
|
25°C (77°F) | 0 mm (0 in) | 72% | SW 3 m/s (6 knots) |
| 07:00 |
Clear skies
|
25°C (77°F) | 0 mm (0 in) | 74% | SW 3 m/s (6 knots) |
| 08:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 72% | SW 3 m/s (6 knots) |
| 09:00 |
Clear skies
|
28°C (82°F) | 0 mm (0 in) | 67% | SW 3 m/s (6 knots) |
| 10:00 |
Clear skies
|
30°C (86°F) | 0 mm (0 in) | 63% | SW 4 m/s (8 knots) |
| 11:00 |
Clear skies
|
32°C (90°F) | 0 mm (0 in) | 58% | SW 4 m/s (8 knots) |
| 12:00 |
Clear skies
|
33°C (91°F) | 0 mm (0 in) | 54% | SW 4 m/s (8 knots) |
| 13:00 |
Mostly sunny
|
34°C (93°F) | 0 mm (0 in) | 47% | SW 4 m/s (8 knots) |
| 14:00 |
Clear skies
|
35°C (95°F) | 0 mm (0 in) | 43% | SW 4 m/s (8 knots) |
| 15:00 |
Clear skies
|
35°C (95°F) | 0 mm (0 in) | 42% | SW 4 m/s (8 knots) |
| 16:00 |
Mostly sunny
|
34°C (93°F) | 0 mm (0 in) | 43% | SW 4 m/s (8 knots) |
| 17:00 |
Clear skies
|
34°C (93°F) | 0 mm (0 in) | 44% | SW 3 m/s (6 knots) |
| 18:00 |
Mostly sunny
|
33°C (91°F) | 0 mm (0 in) | 52% | SW 2 m/s (4 knots) |
| 19:00 |
Clear skies
|
31°C (88°F) | 0 mm (0 in) | 64% | SW 2 m/s (4 knots) |
| 20:00 |
Mostly clear
|
29°C (84°F) | 0 mm (0 in) | 65% | SW 2 m/s (4 knots) |
| 21:00 |
Clear skies
|
29°C (84°F) | 0 mm (0 in) | 66% | S 2 m/s (4 knots) |
| 22:00 |
Clear skies
|
28°C (82°F) | 0 mm (0 in) | 66% | S 3 m/s (6 knots) |
| 23:00 |
Clear skies
|
28°C (82°F) | 0 mm (0 in) | 65% | S 3 m/s (6 knots) |
01:00
Clear skies
66% · S 4 m/s (8 knots)
26°C (79°F)
0 mm (0 in)
02:00
Clear skies
67% · S 4 m/s (8 knots)
26°C (79°F)
0 mm (0 in)
03:00
Clear skies
69% · S 4 m/s (8 knots)
26°C (79°F)
0 mm (0 in)
04:00
Clear skies
70% · SW 4 m/s (8 knots)
26°C (79°F)
0 mm (0 in)
05:00
Clear skies
70% · SW 4 m/s (8 knots)
26°C (79°F)
0 mm (0 in)
06:00
Clear skies
72% · SW 3 m/s (6 knots)
25°C (77°F)
0 mm (0 in)
07:00
Clear skies
74% · SW 3 m/s (6 knots)
25°C (77°F)
0 mm (0 in)
08:00
Clear skies
72% · SW 3 m/s (6 knots)
26°C (79°F)
0 mm (0 in)
09:00
Clear skies
67% · SW 3 m/s (6 knots)
28°C (82°F)
0 mm (0 in)
10:00
Clear skies
63% · SW 4 m/s (8 knots)
30°C (86°F)
0 mm (0 in)
11:00
Clear skies
58% · SW 4 m/s (8 knots)
32°C (90°F)
0 mm (0 in)
12:00
Clear skies
54% · SW 4 m/s (8 knots)
33°C (91°F)
0 mm (0 in)
13:00
Mostly sunny
47% · SW 4 m/s (8 knots)
34°C (93°F)
0 mm (0 in)
14:00
Clear skies
43% · SW 4 m/s (8 knots)
35°C (95°F)
0 mm (0 in)
15:00
Clear skies
42% · SW 4 m/s (8 knots)
35°C (95°F)
0 mm (0 in)
16:00
Mostly sunny
43% · SW 4 m/s (8 knots)
34°C (93°F)
0 mm (0 in)
17:00
Clear skies
44% · SW 3 m/s (6 knots)
34°C (93°F)
0 mm (0 in)
18:00
Mostly sunny
52% · SW 2 m/s (4 knots)
33°C (91°F)
0 mm (0 in)
19:00
Clear skies
64% · SW 2 m/s (4 knots)
31°C (88°F)
0 mm (0 in)
20:00
Mostly clear
65% · SW 2 m/s (4 knots)
29°C (84°F)
0 mm (0 in)
21:00
Clear skies
66% · S 2 m/s (4 knots)
29°C (84°F)
0 mm (0 in)
22:00
Clear skies
66% · S 3 m/s (6 knots)
28°C (82°F)
0 mm (0 in)
23:00
Clear skies
65% · S 3 m/s (6 knots)
28°C (82°F)
0 mm (0 in)
Tomorrow · Thursday 3 Sep
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 00:00 |
Clear skies
|
28°C (82°F) | 0 mm (0 in) | 65% | SW 4 m/s (8 knots) |
| 01:00 |
Clear skies
|
27°C (81°F) | 0 mm (0 in) | 66% | S 4 m/s (8 knots) |
| 02:00 |
Clear skies
|
27°C (81°F) | 0 mm (0 in) | 67% | SW 4 m/s (8 knots) |
| 03:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 68% | SW 4 m/s (8 knots) |
| 04:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 69% | SW 4 m/s (8 knots) |
| 05:00 |
Clear skies
|
26°C (79°F) | 0 mm (0 in) | 70% | SW 3 m/s (6 knots) |
| 06:00 |
Clear skies
|
25°C (77°F) | 0 mm (0 in) | 72% | SW 3 m/s (6 knots) |
| 07:00 |
Clear skies
|
25°C (77°F) | 0 mm (0 in) | 74% | SW 3 m/s (6 knots) |
| 08:00 |
Clear skies
|
27°C (81°F) | 0 mm (0 in) | 73% | SW 3 m/s (6 knots) |
| 09:00 |
Clear skies
|
29°C (84°F) | 0 mm (0 in) | 68% | SW 3 m/s (6 knots) |
| 10:00 |
Clear skies
|
30°C (86°F) | 0 mm (0 in) | 63% | SW 3 m/s (6 knots) |
| 11:00 |
Clear skies
|
32°C (90°F) | 0 mm (0 in) | 57% | SW 3 m/s (6 knots) |
| 12:00 |
Mostly sunny
|
33°C (91°F) | 0 mm (0 in) | 50% | SW 3 m/s (6 knots) |
| 13:00 |
Clear skies
|
34°C (93°F) | 0 mm (0 in) | 47% | SW 3 m/s (6 knots) |
| 14:00 |
Mostly sunny
|
34°C (93°F) | 0 mm (0 in) | 47% | SW 3 m/s (6 knots) |
| 15:00 |
Clear skies
|
35°C (95°F) | 0 mm (0 in) | 46% | SW 3 m/s (6 knots) |
| 16:00 |
Clear skies
|
35°C (95°F) | 0 mm (0 in) | 45% | SW 3 m/s (6 knots) |
| 17:00 |
Clear skies
|
34°C (93°F) | 0 mm (0 in) | 46% | SW 3 m/s (6 knots) |
| 18:00 |
Clear skies
|
33°C (91°F) | 0 mm (0 in) | 50% | SW 2 m/s (4 knots) |
| 19:00 |
Clear skies
|
32°C (90°F) | 0 mm (0 in) | 60% | S 2 m/s (4 knots) |
| 20:00 |
Clear skies
|
30°C (86°F) | 0 mm (0 in) | 60% | S 2 m/s (4 knots) |
| 21:00 |
Clear skies
|
29°C (84°F) | 0 mm (0 in) | 63% | S 2 m/s (4 knots) |
| 22:00 |
Clear skies
|
29°C (84°F) | 0 mm (0 in) | 65% | S 3 m/s (6 knots) |
| 23:00 |
Clear skies
|
28°C (82°F) | 0 mm (0 in) | 64% | S 2 m/s (4 knots) |
00:00
Clear skies
65% · SW 4 m/s (8 knots)
28°C (82°F)
0 mm (0 in)
01:00
Clear skies
66% · S 4 m/s (8 knots)
27°C (81°F)
0 mm (0 in)
02:00
Clear skies
67% · SW 4 m/s (8 knots)
27°C (81°F)
0 mm (0 in)
03:00
Clear skies
68% · SW 4 m/s (8 knots)
26°C (79°F)
0 mm (0 in)
04:00
Clear skies
69% · SW 4 m/s (8 knots)
26°C (79°F)
0 mm (0 in)
05:00
Clear skies
70% · SW 3 m/s (6 knots)
26°C (79°F)
0 mm (0 in)
06:00
Clear skies
72% · SW 3 m/s (6 knots)
25°C (77°F)
0 mm (0 in)
07:00
Clear skies
74% · SW 3 m/s (6 knots)
25°C (77°F)
0 mm (0 in)
08:00
Clear skies
73% · SW 3 m/s (6 knots)
27°C (81°F)
0 mm (0 in)
09:00
Clear skies
68% · SW 3 m/s (6 knots)
29°C (84°F)
0 mm (0 in)
10:00
Clear skies
63% · SW 3 m/s (6 knots)
30°C (86°F)
0 mm (0 in)
11:00
Clear skies
57% · SW 3 m/s (6 knots)
32°C (90°F)
0 mm (0 in)
12:00
Mostly sunny
50% · SW 3 m/s (6 knots)
33°C (91°F)
0 mm (0 in)
13:00
Clear skies
47% · SW 3 m/s (6 knots)
34°C (93°F)
0 mm (0 in)
14:00
Mostly sunny
47% · SW 3 m/s (6 knots)
34°C (93°F)
0 mm (0 in)
15:00
Clear skies
46% · SW 3 m/s (6 knots)
35°C (95°F)
0 mm (0 in)
16:00
Clear skies
45% · SW 3 m/s (6 knots)
35°C (95°F)
0 mm (0 in)
17:00
Clear skies
46% · SW 3 m/s (6 knots)
34°C (93°F)
0 mm (0 in)
18:00
Clear skies
50% · SW 2 m/s (4 knots)
33°C (91°F)
0 mm (0 in)
19:00
Clear skies
60% · S 2 m/s (4 knots)
32°C (90°F)
0 mm (0 in)
20:00
Clear skies
60% · S 2 m/s (4 knots)
30°C (86°F)
0 mm (0 in)
21:00
Clear skies
63% · S 2 m/s (4 knots)
29°C (84°F)
0 mm (0 in)
22:00
Clear skies
65% · S 3 m/s (6 knots)
29°C (84°F)
0 mm (0 in)
23:00
Clear skies
64% · S 2 m/s (4 knots)
28°C (82°F)
0 mm (0 in)
Next 7 days
Six-hour segments
Day
Night
01:00
Morning
07:00
Afternoon
13:00
Evening
19:00
Friday
4 Sep
27°C (81°F)
0 mm (0 in)
Clear skies
64% · SW 3 m/s (6 knots)
26°C (79°F)
2.5 mm (0.1 in)
Rain showers
74% · SW 3 m/s (6 knots)
28°C (82°F)
0 mm (0 in)
Partly cloudy
73% · S 3 m/s (6 knots)
31°C (88°F)
0 mm (0 in)
Mostly clear
70% · N 1 m/s (2 knots)
Fri
4 Sep
night
27°C (81°F)
0 mm (0 in)
Clear skies
64%
3 m/s (6 knots)
morning
26°C (79°F)
2.5 mm (0.1 in)
Rain showers
74%
3 m/s (6 knots)
afternoon
28°C (82°F)
0 mm (0 in)
Partly cloudy
73%
3 m/s (6 knots)
evening
31°C (88°F)
0 mm (0 in)
Mostly clear
70%
1 m/s (2 knots)
Saturday
5 Sep
26°C (79°F)
0 mm (0 in)
Cloudy
83% · E 2 m/s (4 knots)
25°C (77°F)
6.5 mm (0.3 in)
Heavy rain showers
89% · SE 1 m/s (2 knots)
30°C (86°F)
0 mm (0 in)
Partly cloudy
67% · E 1 m/s (2 knots)
29°C (84°F)
0 mm (0 in)
Mostly clear
76% · NE 1 m/s (2 knots)
Sat
5 Sep
night
26°C (79°F)
0 mm (0 in)
Cloudy
83%
2 m/s (4 knots)
morning
25°C (77°F)
6.5 mm (0.3 in)
Heavy rain showers
89%
1 m/s (2 knots)
afternoon
30°C (86°F)
0 mm (0 in)
Partly cloudy
67%
1 m/s (2 knots)
evening
29°C (84°F)
0 mm (0 in)
Mostly clear
76%
1 m/s (2 knots)
Sunday
6 Sep
25°C (77°F)
0 mm (0 in)
Clear skies
92% · E 1 m/s (2 knots)
23°C (73°F)
0.2 mm (0.01 in)
Clear skies
98% · NE 2 m/s (4 knots)
30°C (86°F)
0 mm (0 in)
Partly cloudy
65% · NE 3 m/s (6 knots)
28°C (82°F)
0 mm (0 in)
Partly cloudy
70% · E 3 m/s (6 knots)
Sun
6 Sep
night
25°C (77°F)
0 mm (0 in)
Clear skies
92%
1 m/s (2 knots)
morning
23°C (73°F)
0.2 mm (0.01 in)
Clear skies
98%
2 m/s (4 knots)
afternoon
30°C (86°F)
0 mm (0 in)
Partly cloudy
65%
3 m/s (6 knots)
evening
28°C (82°F)
0 mm (0 in)
Partly cloudy
70%
3 m/s (6 knots)
Monday
7 Sep
23°C (73°F)
0 mm (0 in)
Partly cloudy
84% · E 2 m/s (4 knots)
21°C (70°F)
0 mm (0 in)
Mostly sunny
90% · E 3 m/s (6 knots)
30°C (86°F)
0 mm (0 in)
Partly cloudy
54% · SE 2 m/s (4 knots)
28°C (82°F)
0 mm (0 in)
Cloudy
64% · E 2 m/s (4 knots)
Mon
7 Sep
night
23°C (73°F)
0 mm (0 in)
Partly cloudy
84%
2 m/s (4 knots)
morning
21°C (70°F)
0 mm (0 in)
Mostly sunny
90%
3 m/s (6 knots)
afternoon
30°C (86°F)
0 mm (0 in)
Partly cloudy
54%
2 m/s (4 knots)
evening
28°C (82°F)
0 mm (0 in)
Cloudy
64%
2 m/s (4 knots)
Tuesday
8 Sep
24°C (75°F)
0 mm (0 in)
Mostly clear
81% · SE 3 m/s (6 knots)
21°C (70°F)
0 mm (0 in)
Clear skies
81% · SE 3 m/s (6 knots)
32°C (90°F)
0 mm (0 in)
Partly cloudy
50% · S 3 m/s (6 knots)
30°C (86°F)
0 mm (0 in)
Partly cloudy
55% · SE 3 m/s (6 knots)
Tue
8 Sep
night
24°C (75°F)
0 mm (0 in)
Mostly clear
81%
3 m/s (6 knots)
morning
21°C (70°F)
0 mm (0 in)
Clear skies
81%
3 m/s (6 knots)
afternoon
32°C (90°F)
0 mm (0 in)
Partly cloudy
50%
3 m/s (6 knots)
evening
30°C (86°F)
0 mm (0 in)
Partly cloudy
55%
3 m/s (6 knots)
Wednesday
9 Sep
26°C (79°F)
0 mm (0 in)
Clear skies
73% · S 4 m/s (8 knots)
25°C (77°F)
0 mm (0 in)
Clear skies
82% · S 4 m/s (8 knots)
34°C (93°F)
0 mm (0 in)
Clear skies
45% · SW 5 m/s (10 knots)
32°C (90°F)
0 mm (0 in)
Clear skies
52% · SW 3 m/s (6 knots)
Wed
9 Sep
night
26°C (79°F)
0 mm (0 in)
Clear skies
73%
4 m/s (8 knots)
morning
25°C (77°F)
0 mm (0 in)
Clear skies
82%
4 m/s (8 knots)
afternoon
34°C (93°F)
0 mm (0 in)
Clear skies
45%
5 m/s (10 knots)
evening
32°C (90°F)
0 mm (0 in)
Clear skies
52%
3 m/s (6 knots)
Thursday
10 Sep
27°C (81°F)
1.9 mm (0.1 in)
Rain showers
66% · SW 4 m/s (8 knots)
23°C (73°F)
1.8 mm (0.1 in)
Rain showers
97% · NE 4 m/s (8 knots)
27°C (81°F)
0 mm (0 in)
Partly cloudy
59% · N 4 m/s (8 knots)
25°C (77°F)
0 mm (0 in)
Cloudy
64% · N 3 m/s (6 knots)
Thu
10 Sep
night
27°C (81°F)
1.9 mm (0.1 in)
Rain showers
66%
4 m/s (8 knots)
morning
23°C (73°F)
1.8 mm (0.1 in)
Rain showers
97%
4 m/s (8 knots)
afternoon
27°C (81°F)
0 mm (0 in)
Partly cloudy
59%
4 m/s (8 knots)
evening
25°C (77°F)
0 mm (0 in)
Cloudy
64%
3 m/s (6 knots)
Data from MET Norway.
Prefer the quick-glance version? See the 10-day summary.
Decatur weather by month
Browse monthly averages for Decatur: climate by month with temperature, rainfall and sunshine.
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