10-day forecast for Herrin, IL: 57° to 101°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
101°
Best day: Tuesday, August 11
80° · 0.57 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0993° / 73°0
Morning78°feels 79°
Afternoon92°feels 95°
Evening83°feels 89°
Overnight75°feels 77°
93 °
Herrin, Sunday, 9 August
Mostly clear. High 93°, low 73°.
Pressure30.00 inHg
Wind12.3 mph S
Humidity46%
Visibility6.2 mi
Dew point67°
Mon, 1098° / 76°0
Morning80°feels 83°
Afternoon98°feels 102°
Evening87°feels 92°
Overnight78°feels 79°
98 °
Herrin, Monday, 10 August
Clear. High 98°, low 76°.
Pressure30.00 inHg
Wind14.6 mph SW
Humidity42%
Visibility6.2 mi
Dew point68°
Tue, 11101° / 79°0
Morning82°feels 85°
Afternoon100°feels 105°
Evening91°feels 96°
Overnight82°feels 85°
101 °
Herrin, Tuesday, 11 August
Clear. High 101°, low 79°.
Pressure29.91 inHg
Wind15.2 mph SW
Humidity38%
Visibility6.2 mi
Dew point67°
Wed, 1294° / 78°0
Morning84°feels 87°
Afternoon89°feels 92°
Evening85°feels 90°
Overnight83°feels 86°
94 °
Herrin, Wednesday, 12 August
Overcast. High 94°, low 78°.
Pressure29.85 inHg
Wind15.2 mph W
Humidity35%
Visibility6.2 mi
Dew point65°
Thu, 1380° / 72°0.57
Morning74°feels 75°
Afternoon77°feels 78°
Evening75°feels 76°
Overnight73°feels 74°
80 °
Herrin, Thursday, 13 August
Rain. High 80°, low 72°.
Pressure29.85 inHg
Wind9.6 mph SW
Humidity89%
Visibility—
Dew point73°
Fri, 1482° / 64°0.2
Morning71°feels 72°
Afternoon81°feels 81°
Evening73°feels 72°
Overnight64°feels 64°
82 °
Herrin, Friday, 14 August
Rain. High 82°, low 64°.
Pressure30.09 inHg
Wind11.9 mph NE
Humidity49%
Visibility—
Dew point59°
Sat, 1584° / 57°0
Morning64°feels 64°
Afternoon80°feels 79°
Evening73°feels 72°
Overnight63°feels 63°
84 °
Herrin, Saturday, 15 August
Partly cloudy. High 84°, low 57°.
Pressure30.27 inHg
Wind10.2 mph E
Humidity35%
Visibility—
Dew point47°
Sun, 1686° / 61°0.01
Morning68°feels 68°
Afternoon84°feels 83°
Evening76°feels 77°
Overnight71°feels 72°
86 °
Herrin, Sunday, 16 August
Light rain. High 86°, low 61°.
Pressure30.18 inHg
Wind8.2 mph S
Humidity39%
Visibility—
Dew point54°
Mon, 1792° / 70°0.21
Morning76°feels 79°
Afternoon88°feels 95°
Evening87°feels 94°
Overnight80°feels 84°
92 °
Herrin, Monday, 17 August
Light rain. High 92°, low 70°.
Pressure30.00 inHg
Wind18.2 mph SW
Humidity58%
Visibility—
Dew point69°
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 Herrin, 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.