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Decatur, Illinois
7 Day & Night Forecast & Conditions



Current Conditions Maps Radar 2 Radar 1 Satellite Alerts Climate Index
Current Decatur, Illinois Weather: Cloudy
Cloudy
21°F
-6.1°C
Wind Chill: 14°F
Observed at: Decatur, IL Elevation: 679 ft | 207 m
Last Updated: January 20, 7:13 PM Timezone: GMT -6
 
Sky Conditions: Cloudy Temperature: 21°F | -6.1°C
Pressure: 30.68 in | 1039 mb Dewpoint: 15°F | -9.4°C
Humidity: 78% Wind: N 5 mph | N 7 kph
Feels Like: 14°F | -10°C Visibility: 10.0 mi | 16.1 km
Today's QPF: 0.00 in | 0.00 mm Lat/Long: 39.84 | -88.95
Sunrise: 7:12 AM on 1/20/2020 Sunset: 5:00 PM on 1/20/2020

7 Day Graphical Forecast Valid: 7:00 PM 1/20/2020
Tonight
Today's Weather Forecast For Decatur, Illinois is Partly Cloudy
Partly Cloudy
 13 °F
 -11 °C
15% Chance
Precipitation
Tuesday
Tuesday's Weather Forecast For Decatur, Illinois is Mostly Sunny
Mostly Sunny
30 |21 °F
-1 |-6 °C
0% Chance
Precipitation
Wednesday
Wednesday's Weather Forecast For Decatur, Illinois is Mostly Cloudy
Mostly Cloudy
35 |29 °F
2 |-2 °C
0% Chance
Precipitation
Thursday
Thursday's Weather Forecast For Decatur, Illinois is Wintry Mix
Wintry Mix
36 |31 °F
2 |-1 °C
46% Chance
Precipitation
Friday
Friday's Weather Forecast For Decatur, Illinois is Wintry Mix
Wintry Mix
37 |30 °F
3 |-1 °C
59% Chance
Precipitation
Saturday
Saturday's Weather Forecast For Decatur, Illinois is Mostly Cloudy
Mostly Cloudy
38 |29 °F
3 |-2 °C
8% Chance
Precipitation
Sunday
Sunday's Weather Forecast For Decatur, Illinois is Partly Cloudy
Partly Cloudy
40 |29 °F
4 |-2 °C
7% Chance
Precipitation

7 Hour Graphical Forecast Valid: 7:00 PM 1/20/2020
8 PM
8PMweather forecast forDecatur, Illinois is Mostly Cloudy
Mostly Cloudy
19 °F
15% Chance
Precipitation
9 PM
9PMweather forecast forDecatur, Illinois is Mostly Cloudy
Mostly Cloudy
19 °F
15% Chance
Precipitation
10 PM
10PMweather forecast forDecatur, Illinois is Partly Cloudy
Partly Cloudy
18 °F
4% Chance
Precipitation
11 PM
11PMweather forecast forDecatur, Illinois is Partly Cloudy
Partly Cloudy
17 °F
4% Chance
Precipitation
12 AM
12AMweather forecast forDecatur, Illinois is Partly Cloudy
Partly Cloudy
16 °F
4% Chance
Precipitation
1 AM
1AMweather forecast forDecatur, Illinois is Mostly Clear
Mostly Clear
16 °F
4% Chance
Precipitation
2 AM
2AMweather forecast forDecatur, Illinois is Mostly Clear
Mostly Clear
15 °F
4% Chance
Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall, & Ice Accumulation Forecasts
7 Day & Night Weather Forecast for Decatur, IL - ( Fahrenheit & Celsius )
Valid: 7:00 PM 1/20/2020
Tonight
Partly Cloudy Partly Cloudy with a low around 13°F [-11°C]. North northwest wind to around 4 mph [7 kph], with wind gusts to near 7 mph [11 kph]. The dewpoint will be near 16°F [-9°C] with a humidity of 92% and a barometric pressure around 30.68 in [1039 mb]. Chance of precipitation is 15% with a qpf of 0.00 in [0.00 mm].
Tuesday
Mostly Sunny Mostly Sunny with a high near 30°F [-1°C]. northwest wind to around 4 mph [7 kph], with wind gusts to near 8 mph [13 kph]. The dewpoint will be near 13°F [-11°C] with a humidity of 76% and a barometric pressure around 30.59 in [1036 mb]. The UVI forecast is 2. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Tuesday Night
Partly Cloudy Partly Cloudy with a low around 21°F [-6°C]. South southeast wind to around 8 mph [13 kph], with wind gusts to near 18 mph [30 kph]. The dewpoint will be near 19°F [-7°C] with a humidity of 83% and a barometric pressure around 30.42 in [1030 mb]. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Wednesday
Mostly Cloudy Mostly Cloudy with a high near 35°F [2°C]. South wind to around 11 mph [18 kph], with wind gusts to near 19 mph [31 kph]. The dewpoint will be near 16°F [-9°C] with a humidity of 63% and a barometric pressure around 30.24 in [1024 mb]. The UVI forecast is 2. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Wednesday Night
Scattered Snow Showers Cloudy with Chance of Light Snow with a low around 29°F [-2°C]. South wind to around 10 mph [16 kph], with wind gusts to near 19 mph [31 kph]. The dewpoint will be near 21°F [-6°C] with a humidity of 71% and a barometric pressure around 30.18 in [1022 mb]. Chance of precipitation is 27% with a qpf of 0.00 in [0.00 mm].
Thursday
Wintry Mix Cloudy with Light Wintry Mix Likely with a high near 36°F [2°C]. South southeast wind to around 9 mph [14 kph], with wind gusts to near 16 mph [26 kph]. The dewpoint will be near 27°F [-3°C] with a humidity of 87% and a barometric pressure around 30.12 in [1020 mb]. The UVI forecast is 0. Chance of precipitation is 46% with a qpf of 0.03 in [0.76 mm].
Thursday Night
Wintry Mix Cloudy with Light Wintry Mix Likely with a low around 31°F [-1°C]. East southeast wind to around 9 mph [15 kph], with wind gusts to near 13 mph [21 kph]. The dewpoint will be near 33°F [1°C] with a humidity of 98% and a barometric pressure around 30.00 in [1016 mb]. Chance of precipitation is 71% with a qpf of 0.23 in [5.72 mm].
Friday
Wintry Mix Cloudy with Light Wintry Mix Likely with a high near 37°F [3°C]. East northeast wind to around 9 mph [14 kph], with wind gusts to near 11 mph [18 kph]. The dewpoint will be near 33°F [1°C] with a humidity of 100% and a barometric pressure around 29.91 in [1013 mb]. The UVI forecast is 0. Chance of precipitation is 59% with a qpf of 0.28 in [7.11 mm].
Friday Night
Scattered Wintry Mix Mostly Cloudy with Chance of Light Wintry Mix with a low around 30°F [-1°C]. North wind to around 9 mph [15 kph], with wind gusts to near 14 mph [22 kph]. The dewpoint will be near 34°F [1°C] with a humidity of 96% and a barometric pressure around 30.00 in [1016 mb]. Chance of precipitation is 43% with a qpf of 0.05 in [1.37 mm].
Saturday
Mostly Cloudy Mostly Cloudy with a high near 38°F [3°C]. North northwest wind to around 7 mph [12 kph], with wind gusts to near 17 mph [28 kph]. The dewpoint will be near 32°F [0°C] with a humidity of 91% and a barometric pressure around 30.15 in [1021 mb]. The UVI forecast is 0. Chance of precipitation is 8% with a qpf of 0.00 in [0.00 mm].
Saturday Night
Mostly Cloudy Mostly Cloudy with a low around 29°F [-2°C]. West northwest wind to around 5 mph [8 kph], with wind gusts to near 12 mph [20 kph]. The dewpoint will be near 34°F [1°C] with a humidity of 92% and a barometric pressure around 30.21 in [1023 mb]. Chance of precipitation is 10% with a qpf of 0.00 in [0.00 mm].
Sunday
Partly Cloudy Partly Cloudy with a high near 40°F [4°C]. West wind to around 3 mph [5 kph], with wind gusts to near 9 mph [15 kph]. The dewpoint will be near 32°F [0°C] with a humidity of 88% and a barometric pressure around 30.15 in [1021 mb]. The UVI forecast is 0. Chance of precipitation is 7% with a qpf of 0.00 in [0.00 mm].
Sunday Night
Mostly Cloudy Mostly Cloudy with a low around 29°F [-2°C]. West wind to around 3 mph [5 kph], with wind gusts to near 9 mph [15 kph]. The dewpoint will be near 34°F [1°C] with a humidity of 94% and a barometric pressure around 30.00 in [1016 mb]. Chance of precipitation is 5% with a qpf of 0.00 in [0.00 mm].
Monday
Mostly Cloudy Mostly Cloudy with a high near 41°F [5°C]. West wind to around 4 mph [6 kph], with wind gusts to near 13 mph [21 kph]. The dewpoint will be near 32°F [0°C] with a humidity of 93% and a barometric pressure around 29.97 in [1015 mb]. The UVI forecast is 0. Chance of precipitation is 3% with a qpf of 0.00 in [0.00 mm].



Forecasts for: QPF - Max Wind Speed - Max Humidity - Snowfall - Ice Accumulation
  7 Day and Night - QPF Forecast for Decatur, IL
Tonight: 0.00 mm | 0.00 in
Tuesday: 0.00 mm | 0.00 in
Tuesday Night: 0.00 mm | 0.00 in
Wednesday: 0.00 mm | 0.00 in
Wednesday Night: 0.00 mm | 0.00 in
Thursday: 0.76 mm | 0.03 in
Thursday Night: 5.72 mm | 0.23 in
Friday: 7.11 mm | 0.28 in
Friday Night: 1.37 mm | 0.05 in
Saturday: 0.00 mm | 0.00 in
Saturday Night: 0.00 mm | 0.00 in
Sunday: 0.00 mm | 0.00 in
Sunday Night: 0.00 mm | 0.00 in
Monday: 0.00 mm | 0.00 in

  7 Day and Night - Maximum Wind Speed Forecast for Decatur, IL
Tonight: NNW @ 11 kph | 7 mph
Tuesday: NW @ 13 kph | 8 mph
Tuesday Night: SSE @ 30 kph | 18 mph
Wednesday: S @ 31 kph | 19 mph
Wednesday Night: S @ 31 kph | 19 mph
Thursday: SSE @ 26 kph | 16 mph
Thursday Night: ESE @ 21 kph | 13 mph
Friday: ENE @ 18 kph | 11 mph
Friday Night: N @ 22 kph | 14 mph
Saturday: NNW @ 28 kph | 17 mph
Saturday Night: WNW @ 20 kph | 12 mph
Sunday: W @ 15 kph | 9 mph
Sunday Night: W @ 15 kph | 9 mph
Monday: W @ 21 kph | 13 mph

  7 Day and Night - Maximum Humidity Forecast for Decatur, IL
Tonight: 100 %
Tuesday: 100 %
Tuesday Night: 88 %
Wednesday: 84 %
Wednesday Night: 89 %
Thursday: 96 %
Thursday Night: 100 %
Friday: 100 %
Friday Night: 100 %
Saturday: 100 %
Saturday Night: 96 %
Sunday: 92 %
Sunday Night: 100 %
Monday: 100 %

  7 Day and Night - Snowfall Totals Forecast for Decatur, IL
Tonight: 0.00 cm | 0.00 in
Tuesday: 0.00 cm | 0.00 in
Tuesday Night: 0.00 cm | 0.00 in
Wednesday: 0.00 cm | 0.00 in
Wednesday Night: 0.00 cm | 0.00 in
Thursday: 0.25 cm | 0.1 in
Thursday Night: 0.00 cm | 0.00 in
Friday: 0.00 cm | 0.00 in
Friday Night: 0.00 cm | 0.00 in
Saturday: 0.00 cm | 0.00 in
Saturday Night: 0.00 cm | 0.00 in
Sunday: 0.00 cm | 0.00 in
Sunday Night: 0.00 cm | 0.00 in
Monday: 0.00 cm | 0.00 in

  7 Day and Night - Ice Accumulation Forecast for Decatur, IL
Tonight: 0.00 mm | 0.00 in
Tuesday: 0.00 mm | 0.00 in
Tuesday Night: 0.00 mm | 0.00 in
Wednesday: 0.00 mm | 0.00 in
Wednesday Night: 0.00 mm | 0.00 in
Thursday: 0.00 mm | 0.00 in
Thursday Night: 0.00 mm | 0.00 in
Friday: 0.00 mm | 0.00 in
Friday Night: 0.00 mm | 0.00 in
Saturday: 0.00 mm | 0.00 in
Saturday Night: 0.00 mm | 0.00 in
Sunday: 0.00 mm | 0.00 in
Sunday Night: 0.00 mm | 0.00 in
Monday: 0.00 mm | 0.00 in
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