10-day forecast for Olin, IL: 55° to 93°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Sunday, August 9
71° · 0.38 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0993° / 68°0
Morning75°feels 77°
Afternoon90°feels 98°
Evening85°feels 93°
Overnight69°feels 70°
93 °
Olin, Sunday, 9 August
Overcast. High 93°, low 68°.
Pressure29.88 inHg
Wind14.8 mph SW
Humidity62%
Visibility6.2 mi
Dew point74°
Mon, 1091° / 76°0
Morning77°feels 78°
Afternoon87°feels 96°
Evening82°feels 89°
Overnight80°feels 80°
91 °
Olin, Monday, 10 August
Overcast. High 91°, low 76°.
Pressure29.88 inHg
Wind13.1 mph SW
Humidity58%
Visibility6.2 mi
Dew point71°
Tue, 1191° / 71°0.03
Morning75°feels 76°
Afternoon89°feels 96°
Evening81°feels 85°
Overnight82°feels 85°
91 °
Olin, Tuesday, 11 August
Light rain. High 91°, low 71°.
Pressure29.80 inHg
Wind12.4 mph SW
Humidity52%
Visibility6.2 mi
Dew point70°
Wed, 1282° / 69°0.02
Morning73°feels 75°
Afternoon80°feels 83°
Evening76°feels 77°
Overnight74°feels 76°
82 °
Olin, Wednesday, 12 August
Light rain. High 82°, low 69°.
Pressure29.88 inHg
Wind11.1 mph NE
Humidity76%
Visibility6.2 mi
Dew point71°
Thu, 1371° / 66°0.38
Morning69°feels 70°
Afternoon70°feels 71°
Evening70°feels 71°
Overnight67°feels 67°
71 °
Olin, Thursday, 13 August
Rain. High 71°, low 66°.
Pressure29.91 inHg
Wind10.8 mph NE
Humidity95%
Visibility—
Dew point68°
Fri, 1476° / 55°0
Morning61°feels 60°
Afternoon74°feels 74°
Evening69°feels 69°
Overnight61°feels 60°
76 °
Olin, Friday, 14 August
Clear. High 76°, low 55°.
Pressure30.18 inHg
Wind8.3 mph NE
Humidity57%
Visibility—
Dew point56°
Sat, 1576° / 56°0
Morning62°feels 62°
Afternoon74°feels 73°
Evening68°feels 68°
Overnight61°feels 60°
76 °
Olin, Saturday, 15 August
Overcast. High 76°, low 56°.
Pressure30.30 inHg
Wind8.1 mph SE
Humidity54%
Visibility—
Dew point54°
Sun, 1681° / 58°0
Morning62°feels 62°
Afternoon72°feels 72°
Evening74°feels 74°
Overnight68°feels 68°
81 °
Olin, Sunday, 16 August
Overcast. High 81°, low 58°.
Pressure30.18 inHg
Wind12.7 mph S
Humidity69%
Visibility—
Dew point59°
Mon, 1782° / 66°0.06
Morning72°feels 73°
Afternoon80°feels 80°
Evening79°feels 79°
Overnight74°feels 75°
82 °
Olin, Monday, 17 August
Light rain. High 82°, low 66°.
Pressure29.94 inHg
Wind9.4 mph S
Humidity80%
Visibility—
Dew point72°
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 Olin, 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.