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As of 01:49 CDT

Weather in Decatur, IL

70°Current weather

Decatur, Sunday, 9 August, 01:49

Partly cloudy. Feels like 72°. High 91°, low 70°.

Pressure30.00 inHg
Wind6.2 mph S
Humidity93%
Visibility6.2 mi
Dew point69°

10-day forecast for Decatur, IL: 62° to 96°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.

96°
Best day: Monday, August 10
70° · 0.57 in
Worst day: Friday, August 14

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1096° / 77°0.01Light rain
MorningClear79°feels 79°
AfternoonOvercast94°feels 107°
EveningOvercast85°feels 94°
OvernightClear81°feels 84°
96 °Light rain

Decatur, Monday, 10 August

Light rain. High 96°, low 77°.

Pressure29.91 inHg
Wind13.7 mph SW
Humidity59%
Visibility6.2 mi
Dew point72°
Tue, 1193° / 68°0.04Light rain
MorningOvercast72°feels 74°
AfternoonClear93°feels 102°
EveningPartly cloudy85°feels 90°
OvernightLight rain69°feels 70°
93 °Light rain

Decatur, Tuesday, 11 August

Light rain. High 93°, low 68°.

Pressure29.85 inHg
Wind14.6 mph SW
Humidity60%
Visibility6.2 mi
Dew point73°
Wed, 1286° / 71°0.2Light rain
MorningOvercast77°feels 78°
AfternoonOvercast86°feels 95°
EveningPartly cloudy74°feels 76°
OvernightLight rain73°feels 74°
86 °Light rain

Decatur, Wednesday, 12 August

Light rain. High 86°, low 71°.

Pressure29.83 inHg
Wind9.4 mph NW
Humidity70%
Visibility6.2 mi
Dew point73°
Thu, 1383° / 67°0.07Light rain
MorningLight rain73°feels 74°
AfternoonLight rain82°feels 85°
EveningLight rain74°feels 75°
OvernightLight rain69°feels 70°
83 °Light rain

Decatur, Thursday, 13 August

Light rain. High 83°, low 67°.

Pressure29.94 inHg
Wind14.4 mph E
Humidity60%
Visibility—
Dew point66°
Fri, 1470° / 62°0.57Rain
MorningRain63°feels 63°
AfternoonRain65°feels 66°
EveningRain66°feels 66°
OvernightRain63°feels 63°
70 °Rain

Decatur, Friday, 14 August

Rain. High 70°, low 62°.

Pressure30.12 inHg
Wind13.6 mph E
Humidity93%
Visibility—
Dew point62°
Sat, 1576° / 62°0.21Light rain
MorningLight rain66°feels 67°
AfternoonLight rain74°feels 75°
EveningLight rain71°feels 72°
OvernightLight rain67°feels 68°
76 °Light rain

Decatur, Saturday, 15 August

Light rain. High 76°, low 62°.

Pressure30.18 inHg
Wind11.9 mph E
Humidity74%
Visibility—
Dew point64°
Sun, 1681° / 64°0.13Light rain
MorningLight rain69°feels 71°
AfternoonLight rain80°feels 84°
EveningLight rain76°feels 78°
OvernightLight rain72°feels 73°
81 °Light rain

Decatur, Sunday, 16 August

Light rain. High 81°, low 64°.

Pressure30.06 inHg
Wind9 mph E
Humidity73%
Visibility—
Dew point69°
Mon, 1782° / 67°0Overcast
MorningOvercast71°feels 72°
AfternoonOvercast80°feels 82°
EveningOvercast75°feels 76°
OvernightOvercast70°feels 71°
82 °Overcast

Decatur, Monday, 17 August

Overcast. High 82°, low 67°.

Pressure30.09 inHg
Wind7 mph NE
Humidity60%
Visibility—
Dew point64°
Tue, 1884° / 66°0Partly cloudy
MorningPartly cloudy71°feels 71°
AfternoonPartly cloudy82°feels 83°
EveningPartly cloudy78°feels 79°
OvernightPartly cloudy72°feels 73°
84 °Partly cloudy

Decatur, Tuesday, 18 August

Partly cloudy. High 84°, low 66°.

Pressure30.03 inHg
Wind8.8 mph E
Humidity54%
Visibility—
Dew point62°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Decatur, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.