10-day forecast for Plymouth, IL: 61° to 100°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
100°
Best day: Tuesday, August 11
80° · 1.23 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1096° / 77°0
Morning78°feels 79°
Afternoon94°feels 99°
Evening88°feels 92°
Overnight82°feels 83°
96 °
Plymouth, Monday, 10 August
Overcast. High 96°, low 77°.
Pressure29.88 inHg
Wind8.1 mph SW
Humidity61%
Visibility6.2 mi
Dew point71°
Tue, 11100° / 78°0
Morning80°feels 80°
Afternoon97°feels 104°
Evening87°feels 90°
Overnight83°feels 87°
100 °
Plymouth, Tuesday, 11 August
Mostly clear. High 100°, low 78°.
Pressure29.83 inHg
Wind13.9 mph SW
Humidity41%
Visibility6.2 mi
Dew point68°
Wed, 1292° / 72°0.05
Morning76°feels 77°
Afternoon91°feels 97°
Evening79°feels 80°
Overnight83°feels 83°
92 °
Plymouth, Wednesday, 12 August
Light rain. High 92°, low 72°.
Pressure29.83 inHg
Wind5.7 mph NE
Humidity54%
Visibility6.2 mi
Dew point69°
Thu, 1380° / 67°1.23
Morning73°feels 74°
Afternoon78°feels 78°
Evening70°feels 71°
Overnight71°feels 72°
80 °
Plymouth, Thursday, 13 August
Rain. High 80°, low 67°.
Pressure29.88 inHg
Wind16.1 mph NE
Humidity79%
Visibility—
Dew point72°
Fri, 1476° / 66°0.39
Morning69°feels 69°
Afternoon75°feels 76°
Evening74°feels 75°
Overnight69°feels 70°
76 °
Plymouth, Friday, 14 August
Rain. High 76°, low 66°.
Pressure30.03 inHg
Wind15 mph E
Humidity83%
Visibility—
Dew point68°
Sat, 1584° / 67°0.13
Morning72°feels 74°
Afternoon83°feels 89°
Evening81°feels 87°
Overnight75°feels 76°
84 °
Plymouth, Saturday, 15 August
Rain. High 84°, low 67°.
Pressure30.06 inHg
Wind14.8 mph SE
Humidity71%
Visibility—
Dew point71°
Sun, 1681° / 67°0
Morning75°feels 76°
Afternoon79°feels 79°
Evening74°feels 74°
Overnight68°feels 69°
81 °
Plymouth, Sunday, 16 August
Overcast. High 81°, low 67°.
Pressure30.06 inHg
Wind13 mph N
Humidity72%
Visibility—
Dew point69°
Mon, 1778° / 61°0
Morning66°feels 66°
Afternoon77°feels 78°
Evening72°feels 73°
Overnight67°feels 67°
78 °
Plymouth, Monday, 17 August
Overcast. High 78°, low 61°.
Pressure30.12 inHg
Wind7.7 mph N
Humidity57%
Visibility—
Dew point59°
Tue, 1890° / 63°0.01
Morning71°feels 72°
Afternoon85°feels 89°
Evening81°feels 86°
Overnight72°feels 73°
90 °
Plymouth, Tuesday, 18 August
Light rain. High 90°, low 63°.
Pressure29.80 inHg
Wind13.7 mph S
Humidity57%
Visibility—
Dew point66°
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 Plymouth, 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.