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As of 21:13 CDT

Weather in Ottawa, IL

72°Current weather

Ottawa, Saturday, 8 August, 21:13

Clear. Feels like 73°. High 84°, low 69°.

Pressure30.00 inHg
Wind1.2 mph SW
Humidity82%
Visibility6.2 mi
Dew point66°

10-day forecast for Ottawa, IL: 60° to 89°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.

88°
Best day: Monday, August 10
62° · 0.07 in
Worst day: Saturday, August 15

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

Sun, 0989° / 63°0.11Rain
MorningOvercast70°feels 71°
AfternoonOvercast87°feels 100°
EveningRain84°feels 96°
OvernightClear66°feels 67°
89 °Rain

Ottawa, Sunday, 9 August

Rain. High 89°, low 63°.

Pressure29.91 inHg
Wind14.2 mph S
Humidity78%
Visibility6.2 mi
Dew point75°
Mon, 1088° / 71°0.01Light rain
MorningOvercast73°feels 75°
AfternoonOvercast83°feels 90°
EveningOvercast80°feels 80°
OvernightClear76°feels 77°
88 °Light rain

Ottawa, Monday, 10 August

Light rain. High 88°, low 71°.

Pressure29.88 inHg
Wind9.1 mph SW
Humidity81%
Visibility6.2 mi
Dew point73°
Tue, 1186° / 73°0.01Light rain
MorningOvercast75°feels 77°
AfternoonOvercast80°feels 85°
EveningClear79°feels 79°
OvernightPartly cloudy74°feels 75°
86 °Light rain

Ottawa, Tuesday, 11 August

Light rain. High 86°, low 73°.

Pressure29.80 inHg
Wind13 mph SW
Humidity81%
Visibility6.2 mi
Dew point72°
Wed, 1282° / 68°0.05Light rain
MorningOvercast71°feels 72°
AfternoonLight rain79°feels 79°
EveningClear73°feels 75°
OvernightOvercast70°feels 72°
82 °Light rain

Ottawa, Wednesday, 12 August

Light rain. High 82°, low 68°.

Pressure29.85 inHg
Wind6.3 mph N
Humidity71%
Visibility6.2 mi
Dew point71°
Thu, 1375° / 61°0.05Light rain
MorningLight rain66°feels 67°
AfternoonLight rain74°feels 74°
EveningLight rain65°feels 66°
OvernightLight rain64°feels 65°
75 °Light rain

Ottawa, Thursday, 13 August

Light rain. High 75°, low 61°.

Pressure30.00 inHg
Wind7.4 mph E
Humidity76%
Visibility—
Dew point65°
Fri, 1476° / 60°0Partly cloudy
MorningPartly cloudy64°feels 65°
AfternoonPartly cloudy74°feels 75°
EveningPartly cloudy70°feels 71°
OvernightPartly cloudy64°feels 64°
76 °Partly cloudy

Ottawa, Friday, 14 August

Partly cloudy. High 76°, low 60°.

Pressure30.12 inHg
Wind7.3 mph E
Humidity65%
Visibility—
Dew point61°
Sat, 1562° / 60°0.07Light rain
MorningLight rain61°feels 60°
AfternoonLight rain62°feels 62°
EveningLight rain61°feels 61°
OvernightLight rain61°feels 60°
62 °Light rain

Ottawa, Saturday, 15 August

Light rain. High 62°, low 60°.

Pressure30.30 inHg
Wind8.6 mph E
Humidity91%
Visibility—
Dew point59°
Sun, 1672° / 61°0Light rain
MorningLight rain63°feels 62°
AfternoonLight rain65°feels 65°
EveningLight rain68°feels 68°
OvernightLight rain63°feels 63°
72 °Light rain

Ottawa, Sunday, 16 August

Light rain. High 72°, low 61°.

Pressure30.15 inHg
Wind6.2 mph E
Humidity85%
Visibility—
Dew point59°
Mon, 1777° / 62°0.06Light rain
MorningLight rain66°feels 66°
AfternoonLight rain76°feels 76°
EveningLight rain74°feels 75°
OvernightLight rain67°feels 67°
77 °Light rain

Ottawa, Monday, 17 August

Light rain. High 77°, low 62°.

Pressure30.06 inHg
Wind3.6 mph S
Humidity75%
Visibility—
Dew point65°

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 Ottawa, 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.