GISLat = 39.8415 WEATHERTrackCAST - Decatur, IL Weekly Planner
WEATHERTrackCAST
Your Online Weather Tracking Source
Decatur, IL
Weekly Forecast
Updated: Sep 28 2025 1:55 PM CDT
Today September 28
DAYTIME (6AM - 6PM)
Sunny
Hi: 89°F
NIGHTTIME (6PM - 6AM)
Clear
Lo: 59°F
Today: Sunny, with a high near 89. South wind around 3 mph.

Tonight: Clear, with a low around 59. Southeast wind around 3 mph.
  2:00 PM CDT 3:00 PM CDT 4:00 PM CDT 5:00 PM CDT 6:00 PM CDT 7:00 PM CDT 8:00 PM CDT 9:00 PM CDT 10:00 PM CDT 11:00 PM CDT 12:00 AM CDT 1:00 AM CDT 2:00 AM CDT 3:00 AM CDT 4:00 AM CDT 5:00 AM CDT 6:00 AM CDT
Conditions

Sunny


Sunny


Sunny


Sunny


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Sunny
Temperatures 86°F 86°F 86°F 86°F 86°F 82°F 77°F 73°F 71°F 68°F 66°F 65°F 65°F 63°F 62°F 61°F 60°F
Feels Like 86°F 86°F 86°F 86°F 86°F 82°F 77°F 73°F 71°F 68°F 66°F 65°F 65°F 63°F 62°F 61°F 60°F
Chance of Precip 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wind Speed S @ 3 mph S @ 3 mph S @ 3 mph S @ 3 mph S @ 3 mph SSE @ 2 mph SE @ 3 mph SSE @ 2 mph SSE @ 2 mph S @ 2 mph S @ 2 mph SE @ 2 mph ESE @ 2 mph NE @ 1 mph NNE @ 2 mph NNE @ 1 mph NE @ 1 mph
Humidity 31% 31% 31% 32% 35% 40% 49% 56% 60% 67% 69% 69% 69% 74% 79% 81% 81%
Dewpoint 52°F 52°F 52°F 53°F 55°F 55°F 56°F 56°F 56°F 56°F 56°F 55°F 55°F 55°F 55°F 55°F 54°F
Sunrise Sun Sep 28 6:48 AM CDT
Sunset Sun Sep 28 6:44 PM CDT
The time of Actual Sunset minus the time of Actual Sunrise. 11 h 55 m
UV Index 5.4
Ozone 288.5 DU
First Quarter Moon First Quarter Moon
Monday September 29
DAYTIME (6AM - 6PM)
Sunny
Hi: 91°F
NIGHTTIME (6PM - 6AM)
Mostly Clear
Lo: 62°F
Monday: Sunny, with a high near 91. East northeast wind 1 to 6 mph.

Monday Night: Mostly clear, with a low around 62. East northeast wind around 6 mph.
  6:00 AM CDT 7:00 AM CDT 8:00 AM CDT 9:00 AM CDT 10:00 AM CDT 11:00 AM CDT 12:00 PM CDT 1:00 PM CDT 2:00 PM CDT 3:00 PM CDT 4:00 PM CDT 5:00 PM CDT 6:00 PM CDT 7:00 PM CDT 8:00 PM CDT 9:00 PM CDT 10:00 PM CDT 11:00 PM CDT 12:00 AM CDT 1:00 AM CDT 2:00 AM CDT 3:00 AM CDT 4:00 AM CDT 5:00 AM CDT 6:00 AM CDT
Conditions

Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Mostly Clear


Clear


Mostly Clear


Mostly Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Sunny
Temperatures 60°F 59°F 63°F 70°F 78°F 83°F 87°F 88°F 89°F 91°F 89°F 89°F 87°F 81°F 77°F 74°F 72°F 70°F 68°F 67°F 66°F 65°F 64°F 63°F 62°F
Feels Like 60°F 59°F 63°F 70°F 78°F 83°F 87°F 88°F 89°F 91°F 89°F 89°F 87°F 81°F 77°F 74°F 72°F 70°F 68°F 67°F 66°F 65°F 64°F 63°F 62°F
Chance of Precip 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wind Speed NE @ 1 mph ENE @ 2 mph ENE @ 2 mph ENE @ 2 mph ENE @ 3 mph ENE @ 3 mph E @ 3 mph ENE @ 5 mph ENE @ 5 mph ENE @ 5 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 5 mph E @ 3 mph E @ 3 mph E @ 3 mph E @ 3 mph ENE @ 3 mph ENE @ 3 mph ENE @ 3 mph ENE @ 3 mph ENE @ 3 mph ENE @ 3 mph ENE @ 3 mph
Humidity 81% 83% 78% 64% 48% 39% 33% 32% 30% 28% 29% 31% 32% 41% 48% 51% 57% 61% 65% 68% 70% 72% 74% 78% 81%
Dewpoint 54°F 54°F 56°F 57°F 57°F 56°F 55°F 55°F 54°F 53°F 53°F 54°F 54°F 55°F 56°F 55°F 56°F 56°F 56°F 56°F 56°F 56°F 56°F 56°F 56°F
Sunrise Mon Sep 29 6:49 AM CDT
Sunset Mon Sep 29 6:42 PM CDT
The time of Actual Sunset minus the time of Actual Sunrise. 11 h 53 m
UV Index 5.5
Ozone 278.5 DU
First Quarter Moon First Quarter Moon
Tuesday September 30
DAYTIME (6AM - 6PM)
Sunny
Hi: 89°F
NIGHTTIME (6PM - 6AM)
Partly Cloudy
Lo: 60°F
Tuesday: Sunny, with a high near 89. Northeast wind 3 to 10 mph.

Tuesday Night: Partly cloudy, with a low around 60. East northeast wind around 8 mph.
  6:00 AM CDT 7:00 AM CDT 8:00 AM CDT 9:00 AM CDT 10:00 AM CDT 11:00 AM CDT 12:00 PM CDT 1:00 PM CDT 2:00 PM CDT 3:00 PM CDT 4:00 PM CDT 5:00 PM CDT 6:00 PM CDT 7:00 PM CDT 8:00 PM CDT 9:00 PM CDT 10:00 PM CDT 11:00 PM CDT 12:00 AM CDT 1:00 AM CDT 2:00 AM CDT 3:00 AM CDT 4:00 AM CDT 5:00 AM CDT 6:00 AM CDT
Conditions

Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Mostly Clear


Mostly Clear


Partly Cloudy


Partly Cloudy


Partly Cloudy


Partly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Partly Sunny
Temperatures 62°F 62°F 66°F 72°F 78°F 82°F 85°F 87°F 89°F 89°F 89°F 87°F 84°F 81°F 77°F 73°F 70°F 68°F 66°F 65°F 64°F 63°F 62°F 61°F 60°F
Feels Like 62°F 62°F 66°F 72°F 78°F 82°F 85°F 87°F 89°F 89°F 89°F 87°F 84°F 81°F 77°F 73°F 70°F 68°F 66°F 65°F 64°F 63°F 62°F 61°F 60°F
Chance of Precip 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wind Speed ENE @ 3 mph ENE @ 3 mph ENE @ 3 mph ENE @ 5 mph ENE @ 6 mph ENE @ 7 mph NE @ 8 mph NE @ 9 mph NE @ 10 mph NE @ 10 mph NE @ 10 mph NE @ 9 mph NE @ 8 mph NE @ 7 mph NE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph ENE @ 6 mph
Humidity 81% 80% 71% 60% 50% 43% 36% 32% 30% 28% 29% 30% 34% 38% 43% 49% 55% 59% 61% 63% 65% 67% 69% 71% 73%
Dewpoint 56°F 56°F 57°F 58°F 58°F 57°F 56°F 54°F 53°F 52°F 52°F 52°F 53°F 53°F 53°F 53°F 53°F 53°F 52°F 52°F 52°F 52°F 52°F 52°F 51°F
Sunrise Tue Sep 30 6:50 AM CDT
Sunset Tue Sep 30 6:40 PM CDT
The time of Actual Sunset minus the time of Actual Sunrise. 11 h 50 m
UV Index 5.2
Ozone 287.4 DU
First Quarter Moon First Quarter Moon
Wednesday October 01
DAYTIME (6AM - 6PM)
Partly Sunny
Hi: 87°F
NIGHTTIME (6PM - 6AM)
Mostly Cloudy
Lo: 59°F
Wednesday: Partly sunny, with a high near 87. East wind around 7 mph.

Wednesday Night: Mostly cloudy, with a low around 59.
  6:00 AM CDT 7:00 AM CDT 8:00 AM CDT 9:00 AM CDT 10:00 AM CDT 11:00 AM CDT 12:00 PM CDT 1:00 PM CDT 2:00 PM CDT 3:00 PM CDT 4:00 PM CDT 5:00 PM CDT 6:00 PM CDT 7:00 PM CDT 8:00 PM CDT 9:00 PM CDT 10:00 PM CDT 11:00 PM CDT 12:00 AM CDT 1:00 AM CDT 2:00 AM CDT 3:00 AM CDT 4:00 AM CDT 5:00 AM CDT 6:00 AM CDT
Conditions

Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Partly Sunny


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Mostly Cloudy


Partly Cloudy


Partly Cloudy


Mostly Sunny
Temperatures 60°F 60°F 64°F 69°F 74°F 78°F 82°F 84°F 86°F 87°F 86°F 85°F 83°F 80°F 76°F 73°F 70°F 69°F 68°F 67°F 65°F 63°F 61°F 60°F 59°F
Feels Like 60°F 60°F 64°F 69°F 74°F 78°F 82°F 84°F 86°F 87°F 86°F 85°F 83°F 80°F 76°F 73°F 70°F 69°F 68°F 67°F 65°F 63°F 61°F 60°F 59°F
Chance of Precip 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wind Speed ENE @ 6 mph ENE @ 6 mph E @ 6 mph E @ 7 mph E @ 7 mph E @ 7 mph E @ 7 mph E @ 7 mph E @ 7 mph E @ 7 mph E @ 7 mph E @ 7 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph E @ 6 mph
Humidity 73% 71% 65% 57% 50% 44% 40% 37% 34% 33% 33% 35% 37% 41% 46% 53% 59% 62% 62% 63% 66% 69% 71% 74% 74%
Dewpoint 51°F 51°F 52°F 53°F 54°F 55°F 55°F 55°F 55°F 54°F 54°F 54°F 54°F 54°F 54°F 55°F 55°F 55°F 55°F 54°F 53°F 53°F 52°F 51°F 50°F
Sunrise Wed Oct 01 6:51 AM CDT
Sunset Wed Oct 01 6:39 PM CDT
The time of Actual Sunset minus the time of Actual Sunrise. 11 h 48 m
UV Index 5.7
Ozone 265.3 DU
First Quarter Moon First Quarter Moon
Thursday October 02
DAYTIME (6AM - 6PM)
Mostly Sunny
Hi: 86°F
NIGHTTIME (6PM - 6AM)
Clear
Lo: 57°F
Thursday: Mostly sunny, with a high near 86.

Thursday Night: Clear, with a low around 57.
  6:00 AM CDT 7:00 AM CDT 8:00 AM CDT 9:00 AM CDT 10:00 AM CDT 11:00 AM CDT 12:00 PM CDT 1:00 PM CDT 2:00 PM CDT 3:00 PM CDT 4:00 PM CDT 5:00 PM CDT 6:00 PM CDT 7:00 PM CDT 8:00 PM CDT 9:00 PM CDT 10:00 PM CDT 11:00 PM CDT 12:00 AM CDT 1:00 AM CDT 2:00 AM CDT 3:00 AM CDT 4:00 AM CDT 5:00 AM CDT 6:00 AM CDT
Conditions

Mostly Sunny


Mostly Sunny


Mostly Sunny


Mostly Sunny


Mostly Sunny


Mostly Sunny


Mostly Sunny


Mostly Sunny


Mostly Sunny


Sunny


Sunny


Sunny


Mostly Clear


Mostly Clear


Mostly Clear


Mostly Clear


Mostly Clear


Mostly Clear


Clear


Clear


Clear


Clear


Clear


Clear


Sunny
Temperatures 59°F 59°F 63°F 69°F 74°F 78°F 81°F 83°F 85°F 86°F 86°F 84°F 82°F 79°F 75°F 71°F 68°F 66°F 64°F 63°F 62°F 60°F 60°F 58°F 57°F
Feels Like 59°F 59°F 63°F 69°F 74°F 78°F 81°F 83°F 85°F 86°F 86°F 84°F 82°F 79°F 75°F 71°F 68°F 66°F 64°F 63°F 62°F 60°F 60°F 58°F 57°F
Chance of Precip 0% 0% 0% 0% 0% 0% 0% 1% 1% 1% 1% 1% 1% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wind Speed E @ 6 mph E @ 6 mph ESE @ 6 mph ESE @ 6 mph ESE @ 6 mph ESE @ 6 mph SE @ 7 mph SE @ 7 mph SE @ 7 mph SE @ 7 mph SE @ 7 mph SE @ 7 mph SE @ 6 mph SE @ 6 mph SE @ 6 mph SE @ 6 mph SE @ 6 mph SE @ 6 mph SSE @ 5 mph SSE @ 5 mph SSE @ 5 mph SSE @ 3 mph SSE @ 3 mph SSE @ 3 mph SSE @ 3 mph
Humidity 74% 71% 63% 54% 46% 41% 37% 34% 31% 30% 29% 30% 33% 37% 42% 49% 57% 62% 65% 67% 70% 72% 73% 77% 79%
Dewpoint 50°F 50°F 50°F 51°F 52°F 52°F 52°F 52°F 51°F 51°F 50°F 50°F 50°F 50°F 51°F 51°F 52°F 52°F 52°F 52°F 52°F 51°F 51°F 51°F 51°F
Sunrise Thu Oct 02 6:52 AM CDT
Sunset Thu Oct 02 6:37 PM CDT
The time of Actual Sunset minus the time of Actual Sunrise. 11 h 45 m
UV Index 5.8
Ozone 260.0 DU
Waxing Gibbous Moon Waxing Gibbous Moon
Friday October 03
DAYTIME (6AM - 6PM)
Sunny
Hi: 87°F
NIGHTTIME (6PM - 6AM)
Clear
Lo: 59°F
Friday: Sunny, with a high near 87.

Friday Night: Clear, with a low around 59.
  6:00 AM CDT 7:00 AM CDT 8:00 AM CDT 9:00 AM CDT 10:00 AM CDT 11:00 AM CDT 12:00 PM CDT 1:00 PM CDT 2:00 PM CDT 3:00 PM CDT 4:00 PM CDT 5:00 PM CDT 6:00 PM CDT 7:00 PM CDT 8:00 PM CDT 9:00 PM CDT 10:00 PM CDT 11:00 PM CDT 12:00 AM CDT 1:00 AM CDT 2:00 AM CDT 3:00 AM CDT 4:00 AM CDT 5:00 AM CDT 6:00 AM CDT
Conditions

Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Clear


Sunny
Temperatures 57°F 58°F 63°F 69°F 75°F 79°F 82°F 84°F 86°F 87°F 86°F 85°F 82°F 79°F 76°F 72°F 69°F 67°F 66°F 65°F 64°F 62°F 61°F 60°F 59°F
Feels Like 57°F 58°F 63°F 69°F 75°F 79°F 82°F 84°F 86°F 87°F 86°F 85°F 82°F 79°F 76°F 72°F 69°F 67°F 66°F 65°F 64°F 62°F 61°F 60°F 59°F
Chance of Precip 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wind Speed SSE @ 3 mph SSE @ 3 mph SSE @ 5 mph S @ 5 mph S @ 6 mph S @ 6 mph S @ 7 mph S @ 7 mph S @ 7 mph S @ 8 mph S @ 8 mph S @ 8 mph S @ 7 mph S @ 7 mph S @ 7 mph S @ 7 mph S @ 7 mph S @ 7 mph S @ 6 mph S @ 6 mph S @ 6 mph S @ 6 mph S @ 6 mph S @ 6 mph S @ 6 mph
Humidity 79% 77% 68% 57% 48% 42% 37% 34% 32% 31% 31% 32% 34% 38% 42% 49% 55% 59% 62% 65% 68% 71% 74% 78% 81%
Dewpoint 51°F 51°F 52°F 53°F 54°F 54°F 54°F 53°F 53°F 52°F 52°F 52°F 51°F 51°F 51°F 52°F 52°F 52°F 53°F 53°F 53°F 53°F 53°F 53°F 53°F
Sunrise Fri Oct 03 6:53 AM CDT
Sunset Fri Oct 03 6:36 PM CDT
The time of Actual Sunset minus the time of Actual Sunrise. 11 h 42 m
UV Index 5.6
Ozone 263.6 DU
Waxing Gibbous Moon Waxing Gibbous Moon
Saturday October 04
DAYTIME (6AM - 6PM)
Sunny
Hi: 86°F
NIGHTTIME (6PM - 6AM)
Mostly Clear
Lo: 59°F
Saturday: Sunny, with a high near 86.

Saturday Night: Mostly clear, with a low around 59.
  6:00 AM CDT 7:00 AM CDT 8:00 AM CDT 9:00 AM CDT 10:00 AM CDT 11:00 AM CDT 12:00 PM CDT 1:00 PM CDT 2:00 PM CDT 3:00 PM CDT 4:00 PM CDT 5:00 PM CDT 6:00 PM CDT 7:00 PM CDT 8:00 PM CDT 9:00 PM CDT 10:00 PM CDT 11:00 PM CDT 12:00 AM CDT 1:00 AM CDT
Conditions

Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Sunny


Mostly Clear


Mostly Clear


Mostly Clear


Mostly Clear


Mostly Clear


Mostly Clear


Clear


Clear
Temperatures 59°F 59°F 63°F 69°F 74°F 78°F 81°F 83°F 84°F 85°F 85°F 84°F 82°F 79°F 75°F 72°F 69°F 68°F 67°F 66°F
Feels Like 59°F 59°F 63°F 69°F 74°F 78°F 81°F 83°F 84°F 85°F 85°F 84°F 82°F 79°F 75°F 72°F 69°F 68°F 67°F 66°F
Chance of Precip 0% 0% 0% 0% 0% 0% 0% 1% 1% 1% 1% 1% 1% 3% 3% 3% 3% 3% 3% 3%
Wind Speed S @ 6 mph S @ 6 mph S @ 7 mph S @ 8 mph S @ 9 mph S @ 10 mph SSW @ 12 mph SSW @ 12 mph SSW @ 12 mph S @ 12 mph S @ 12 mph S @ 10 mph S @ 10 mph S @ 9 mph S @ 9 mph S @ 8 mph S @ 8 mph S @ 7 mph S @ 7 mph S @ 6 mph
Humidity 81% 80% 71% 61% 51% 45% 41% 37% 34% 32% 32% 33% 36% 41% 47% 54% 61% 65% 66% 68%
Dewpoint 53°F 53°F 54°F 54°F 55°F 55°F 55°F 54°F 53°F 52°F 52°F 52°F 52°F 53°F 54°F 54°F 55°F 55°F 55°F 55°F
Sunrise Sat Oct 04 6:54 AM CDT
Sunset Sat Oct 04 6:34 PM CDT
The time of Actual Sunset minus the time of Actual Sunrise. 11 h 40 m
UV Index N/A
Ozone N/A
Waxing Gibbous Moon Waxing Gibbous Moon