Decatur, IL Hourly Weather Forecast
Next 48 Hours
Wed, Sep 9th 2026
Moderate rain at times in the morning, with scattered showers expected by night. Warming trend from 71°F to 87°. Breezy wind, shifting from NNW to WSW at 7.8 mph, while humidity ranges from 57% to 94%, and an avg barometric pressure of 29.99 inHg.
| Wed, Sep 9th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
2 PM Moderate Rain At Times UV: 6.8 |
87°F Feels 93°F |
59% | 6.5 NNW | 30 | 71.1°F | 39% Rain est. 0.02in |
3 PM Light Drizzle UV: 4.6 |
86°F Feels 90°F |
57% | 10.3 NNW | 29.99 | 68.8°F | 42% Rain est. 0.02in |
4 PM Scattered Showers UV: 3 |
80°F Feels 82°F |
68% | 15.7 N | 29.97 | 68.4°F | 17% |
5 PM Moderate Or Heavy Rain Shower UV: 0.2 |
78°F Feels 80°F |
79% | 10.7 NNW | 29.99 | 71.1°F | 81% Rain est. 0.15in |
6 PM Light Rain Shower UV: 0.2 |
75°F Feels 82°F |
94% | 4.5 E | 29.98 | 73.1°F | 65% Rain est. 0.02in |
7 PM Scattered ShowersUV: 0 |
76°F Feels 82°F |
94% | 5.8 SSE | 29.97 | 74°F | 35% |
8 PM Scattered Showers UV: 0 |
72°F Feels 75°F |
92% | 9.6 SSW | 30.01 | 69.8°F | 33% |
9 PM Overcast UV: 0 |
72°F Feels 76°F |
91% | 5.4 SW | 29.99 | 69.2°F | 30% |
10 PM Partly Cloudy UV: 0 |
72°F Feels 77°F |
91% | 5.1 SSW | 30 | 69.6°F | 22% |
11 PM OvercastUV: 0 |
71°F Feels 76°F |
93% | 4.5 WSW | 29.99 | 69.4°F | 32% |
Thu, Sep 10th 2026
A full day of Light rain shower conditions is expected. Temps range from 67° to 74°. Light winds, shifting from WSW to NE at 4.5 mph, as humidity ranges 72% to 98%, and an avg barometric pressure of 29.99 inHg.
| Thu, Sep 10th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Light Rain Shower UV: 0 |
72°F Feels 75°F |
94% | 8.1 WSW | 30.01 | 70.4°F | 49% Rain est. 0.01in |
1 AM Light Rain ShowerUV: 0 |
70°F Feels 71°F |
98% | 11.6 W | 30.02 | 69.5°F | 52% Rain est. 0.01in |
2 AM Light Rain ShowerUV: 0 |
70°F Feels 74°F |
96% | 5.1 WSW | 29.99 | 68.5°F | 78% Rain est. 0.05in |
3 AM Light Rain ShowerUV: 0 |
71°F Feels 76°F |
95% | 4.9 SSE | 29.97 | 69.6°F | 79% Rain est. 0.06in |
4 AM Light Rain ShowerUV: 0 |
70°F Feels 74°F |
95% | 4.3 W | 30 | 68.3°F | 76% Rain est. 0.04in |
5 AM Mist UV: 0 |
70°F Feels 74°F |
95% | 5.1 NW | 29.99 | 68.5°F | 46% |
6 AM MistUV: 0 |
70°F Feels 76°F |
95% | 2.2 WSW | 29.97 | 68.8°F | 41% |
7 AM Light Rain ShowerUV: 0 |
69°F Feels 73°F |
95% | 3.6 E | 29.97 | 67.6°F | 65% Rain est. 0.02in |
8 AM Mist UV: 0.3 |
68°F Feels 73°F |
95% | 2.9 SSW | 30 | 66.9°F | 43% |
9 AM Moderate Or Heavy Rain ShowerUV: 1 |
67°F Feels 70°F |
98% | 5.1 W | 30.01 | 66.6°F | 92% Rain est. 0.23in |
10 AM Light Rain ShowerUV: 1.8 |
68°F Feels 72°F |
96% | 2.7 SSE | 30.01 | 66.5°F | 82% Rain est. 0.08in |
11 AM Light Rain ShowerUV: 2.5 |
68°F Feels 74°F |
96% | 0.9 ENE | 30.01 | 66.7°F | 80% Rain est. 0.07in |
12 PM Light Rain ShowerUV: 2.4 |
69°F Feels 73°F |
91% | 2.9 SW | 30.01 | 66.5°F | 64% Rain est. 0.02in |
1 PM Light Rain ShowerUV: 2.9 |
69°F Feels 71°F |
91% | 5.8 SW | 30.02 | 66.1°F | 76% Rain est. 0.05in |
2 PM Scattered ShowersUV: 2.4 |
69°F Feels 70°F |
87% | 6.9 WSW | 30 | 64.9°F | 38% |
3 PM Light Rain ShowerUV: 2.9 |
69°F Feels 72°F |
85% | 4.3 SSW | 29.97 | 64.6°F | 33% Rain est. 0.01in |
4 PM Light Rain ShowerUV: 2.4 |
74°F Feels 77°F |
73% | 3.8 WSW | 29.95 | 64.6°F | 31% Rain est. 0.01in |
5 PM Scattered ShowersUV: 1.2 |
74°F Feels 77°F |
72% | 3.4 W | 29.94 | 64°F | 20% |
6 PM Light Rain ShowerUV: 0.4 |
72°F Feels 75°F |
79% | 4.5 W | 29.96 | 65.2°F | 36% Rain est. 0.01in |
7 PM Scattered ShowersUV: 0 |
72°F Feels 75°F |
85% | 4.7 NW | 29.95 | 67.1°F | 31% |
8 PM Scattered ShowersUV: 0 |
71°F Feels 76°F |
87% | 3.4 N | 29.96 | 67.2°F | 29% |
9 PM Cloudy UV: 0 |
71°F Feels 76°F |
90% | 2.9 NNE | 29.98 | 67.5°F | 21% |
10 PM Clear UV: 0 |
69°F Feels 73°F |
93% | 3.6 NE | 29.99 | 66.8°F | 15% |
11 PM MistUV: 0 |
68°F Feels 71°F |
94% | 5.4 NE | 29.99 | 66°F | 19% |
Fri, Sep 11th 2026
Starting off Overcast conditions, turning Misty conditions later in the day. Warming trend from 64°F to 80°. Light winds, shifting from NE to SSE at 6.3 mph, while humidity ranges from 54% to 98%, and an avg barometric pressure of 29.99 inHg.
| Fri, Sep 11th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Partly CloudyUV: 0 |
66°F Feels 69°F |
94% | 4.9 NE | 29.99 | 64.4°F | 17% |
1 AM OvercastUV: 0 |
65°F Feels 67°F |
93% | 5.1 ENE | 30 | 63°F | 32% |
2 AM ClearUV: 0 |
64°F Feels 65°F |
94% | 6.5 ENE | 29.99 | 62.5°F | 15% |
3 AM MistUV: 0 |
64°F Feels 65°F |
94% | 5.4 E | 30 | 62°F | 21% |
4 AM MistUV: 0 |
64°F Feels 65°F |
95% | 5.6 ENE | 29.99 | 62.2°F | 21% |
5 AM Fog UV: 0 |
64°F Feels 65°F |
97% | 6 ENE | 29.99 | 62.8°F | 42% |
6 AM FogUV: 0 |
64°F Feels 65°F |
98% | 5.6 E | 29.99 | 63.3°F | 43% |
7 AM Fog UV: 0 |
64°F Feels 66°F |
98% | 5.4 E | 30 | 63.8°F | 43% |
8 AM MistUV: 0.5 |
64°F Feels 64°F |
94% | 6.7 ESE | 30.01 | 62.3°F | 23% |
9 AM Partly Cloudy UV: 1.5 |
68°F Feels 69°F |
86% | 6.9 ESE | 30.01 | 63.9°F | 16% |
10 AM Overcast UV: 3 |
72°F Feels 73°F |
75% | 6.9 SE | 30.01 | 64°F | 21% |
11 AM OvercastUV: 4.7 |
76°F Feels 76°F |
65% | 7.2 SE | 30 | 63°F | 16% |
12 PM OvercastUV: 6.1 |
78°F Feels 78°F |
59% | 7.6 SSE | 29.98 | 62.2°F | 14% |
1 PM Cloudy UV: 6.5 |
80°F Feels 81°F |
54% | 7.8 SSE | 29.96 | 61.8°F | 9% |
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 |
81°F |
30.01 inHg.
Barometer 67%
Humidity NNW 3.6mph Wind |
| Patchy light drizzle | ||
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