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As of 20:40 CDT

Weather in Ottawa, IL

65°Current weather

Ottawa, Wednesday, 21 October, 20:40

Clear. Feels like 63°. High 73°, low 42°.

Pressure30.21 inHg
Wind1.1 mph SE
Humidity55%
Visibility6.2 mi
Dew point48°

10-day forecast for Ottawa, IL: 36° to 74°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

74°
Best day: Thursday, October 22
53°
Worst day: Wednesday, October 28

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

Thu, 2274° / 46°0Clear
MorningClear51°feels 50°
AfternoonClear74°feels 73°
EveningClear57°feels 56°
OvernightClear50°feels 50°
74 °Clear

Ottawa, Thursday, 22 October

Clear. High 74°, low 46°.

Pressure30.27 inHg
Wind0.9 mph S
Humidity51%
Visibility6.2 mi
Dew point50°
Fri, 2372° / 47°0Clear
MorningClear51°feels 51°
AfternoonClear70°feels 69°
EveningClear57°feels 55°
OvernightClear50°feels 49°
72 °Clear

Ottawa, Friday, 23 October

Clear. High 72°, low 47°.

Pressure30.33 inHg
Wind5.6 mph S
Humidity51%
Visibility6.2 mi
Dew point49°
Sat, 2469° / 49°0Overcast
MorningOvercast51°feels 49°
AfternoonOvercast68°feels 67°
EveningOvercast58°feels 57°
OvernightClear51°feels 50°
69 °Overcast

Ottawa, Saturday, 24 October

Overcast. High 69°, low 49°.

Pressure30.39 inHg
Wind6 mph S
Humidity58%
Visibility6.2 mi
Dew point50°
Sun, 2571° / 51°0Clear
MorningOvercast53°feels 52°
AfternoonPartly cloudy70°feels 69°
EveningOvercast59°feels 58°
OvernightOvercast53°feels 52°
71 °Clear

Ottawa, Sunday, 25 October

Clear. High 71°, low 51°.

Pressure30.39 inHg
Wind3.9 mph S
Humidity57%
Visibility6.2 mi
Dew point50°
Mon, 2671° / 49°0Overcast
MorningOvercast55°feels 55°
AfternoonOvercast68°feels 67°
EveningOvercast61°feels 60°
OvernightOvercast56°feels 55°
71 °Overcast

Ottawa, Monday, 26 October

Overcast. High 71°, low 49°.

Pressure30.33 inHg
Wind6.7 mph E
Humidity52%
Visibility—
Dew point48°
Tue, 2763° / 51°0.04Light rain
MorningLight rain54°feels 53°
AfternoonLight rain62°feels 61°
EveningLight rain57°feels 56°
OvernightLight rain54°feels 53°
63 °Light rain

Ottawa, Tuesday, 27 October

Light rain. High 63°, low 51°.

Pressure30.18 inHg
Wind9 mph SE
Humidity63%
Visibility—
Dew point48°
Wed, 2853° / 39°0.04Light rain
MorningLight rain48°feels 44°
AfternoonLight rain43°feels 37°
EveningLight rain43°feels 39°
OvernightLight rain41°feels 37°
53 °Light rain

Ottawa, Wednesday, 28 October

Light rain. High 53°, low 39°.

Pressure30.27 inHg
Wind14 mph N
Humidity84%
Visibility—
Dew point40°
Thu, 2954° / 36°0Clear
MorningClear40°feels 37°
AfternoonClear51°feels 49°
EveningClear46°feels 46°
OvernightClear43°feels 40°
54 °Clear

Ottawa, Thursday, 29 October

Clear. High 54°, low 36°.

Pressure30.33 inHg
Wind6.6 mph NW
Humidity43%
Visibility—
Dew point28°
Fri, 3061° / 40°0Partly cloudy
MorningPartly cloudy45°feels 41°
AfternoonPartly cloudy58°feels 55°
EveningPartly cloudy53°feels 50°
OvernightPartly cloudy50°feels 47°
61 °Partly cloudy

Ottawa, Friday, 30 October

Partly cloudy. High 61°, low 40°.

Pressure30.15 inHg
Wind14.1 mph S
Humidity34%
Visibility—
Dew point28°

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.