Decatur (IL)
Today
Today weather in Decatur
Sunday, September 20th, 2026
31°
Overcast
Low 18°
Decatur will have a warm day Today with temperatures ascending to 30 °F and descending to around 17 °F after sunset. It'll be quite breezy in Decatur Today with average wind speeds of 25 km/h. Intermittent light showers are likely, with about 1.21 mm expected.
31° / 18°
Temp
57%
Rain
25 km/h
Wind
67%
Humidity
Decatur Weather Pages
Decatur hourly forecast for today
Scroll right to see more weather forecasts for Decatur today
| 12:00 AM | 01:00 AM | 02:00 AM | 03:00 AM | 04:00 AM | 05:00 AM | 06:00 AM | 06:41 AM | 07:00 AM | 08:00 AM | 09:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 01:00 PM | 02:00 PM | 03:00 PM | 04:00 PM | 05:00 PM | 06:00 PM | 06:56 PM | 07:00 PM | 08:00 PM | 09:00 PM | 10:00 PM | 11:00 PM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | |  | |  |  |  | | |  |  | |  | | | | | |  |  |  | | | | Next |
| temperatures | 25.9° | 25.2° | 25.6° | 25.2° | 24.5° | 23.7° | 22.6° | Sunrise | 22.3° | 23.1° | 24.3° | 26.9° | 28.2° | 29.9° | 30° | 30.2° | 30.5° | 30.6° | 26.3° | 22.3° | Sunset | 19.1° | 18.7° | 18.2° | 17.5° | 17.7° | |
| Feels like | 27.6° | 27° | 26.7° | 26.3° | 25° | 23.5° | 22.7° | 22.3° | 22.6° | 24° | 27.1° | 28.4° | 30.1° | 30.4° | 30.8° | 31.1° | 31.2° | 26.7° | 21° | 16.9° | 17° | 16.7° | 16.3° | 16.4° | |||
| wind speed | 14 km/h | 13 km/h | 17 km/h | 13 km/h | 12 km/h | 11 km/h | 7 km/h | 7 km/h | 10 km/h | 8 km/h | 10 km/h | 12 km/h | 14 km/h | 17 km/h | 17 km/h | 14 km/h | 15 km/h | 23 km/h | 26 km/h | 25 km/h | 23 km/h | 21 km/h | 18 km/h | 18 km/h | |||
| wind degree | 154° | 159° | 178° | 193° | 190° | 229° | 222° | 222° | 236° | 229° | 276° | 279° | 297° | 297° | 293° | 296° | 306° | 0° | 17° | 24° | 30° | 37° | 41° | 50° | |||
| wind direction | SSE | SSE | S | SSW | S | SW | SW | SW | WSW | SW | W | W | WNW | WNW | WNW | WNW | NW | N | NNE | NNE | NNE | NE | NE | NE | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0.1 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0.2 mm | 0.4 mm | 0 mm | 0.2 mm | 0 mm | 0.1 mm | 0.2 mm | |||
| chance for rain | 20% | 23% | 20% | 18% | 5% | 5% | 11% | 4% | 13% | 12% | 6% | 17% | 11% | 8% | 8% | 11% | 9% | 24% | 49% | 19% | 50% | 32% | 42% | 48% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 77% | 79% | 76% | 71% | 68% | 61% | 60% | 60% | 57% | 52% | 48% | 47% | 45% | 46% | 47% | 46% | 46% | 68% | 87% | 93% | 94% | 94% | 96% | 94% | |||
| dew point | 21.6° | 21.4° | 21° | 19.6° | 18.1° | 15.6° | 14.4° | 14.1° | 14.3° | 13.7° | 14.9° | 15.8° | 16.6° | 17.2° | 17.6° | 17.5° | 17.5° | 19.8° | 20° | 17.9° | 17.7° | 17.3° | 16.9° | 16.7° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 9 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 91% | 100% | 95% | 100% | 5% | 21% | 82% | 19% | 99% | 100% | 60% | 96% | 100% | 82% | 84% | 100% | 79% | 76% | 80% | 40% | 100% | 100% | 100% | 100% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 1.3 | 2.9 | 4.9 | 6.4 | 6.9 | 6.1 | 4.2 | 2 | 0.8 | 0.2 | 0 | 0 | 0 | 0 | 0 |
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Weather in Decatur today
The weather in Decatur today is expected to be slightly warmer than usual, with a forecast temperature of 31 °F, compared to an average of 28 °F for September 20th in recent years.
temperatures
31 °F
rain
1.2 mm
wind
25 km/h
UV
High
Decatur daylight overview ☀️
Today in Decatur, The sun rises at 06:41 and sets at 18:56, giving a total daylight duration of 12 hours and 15 minutes.
Quick links
More Decatur weather pages
What to wear today in Decatur? clothing recommendations
Stay comfortably stylish - your tailored guide for today's Decatur forecast.
Short-sleeve shirt
Shorts
Lightweight pants
Breathable footwear
Sunglasses
Wide brimmed hat
Sunscreen
Flip flop
Umbrella
The weather today in Decatur - FAQ
What is the maximum temperature for today in Decatur?
The maximum temperature for today in Decatur is expected to be 31° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in Decatur? 🌧️
Yes, there is a 57% chance of rain in Decatur today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Decatur? 🌀
The wind in Decatur is expected to blow at 25 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Decatur today?
Given the forecast of 31 °F with a 57% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Decatur today.
What is the sunrise and sunset time for Decatur today?
The sun is expected to rise at 06:41 and set at 18:56 in Decatur.
How accurate is the weather forecast Decatur today? ✅
Decatur weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is Decatur?Get accurate weather forecasts for Decatur, located at latitude 39.84 and longitude -88.955. Stay updated with localized weather information tailored for Decatur.
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