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As of 09:47 CDT

Weather in Ottawa, IL

52°Current weather

Ottawa, Monday, 19 October, 09:47

Clear. Feels like 50°. High 66°, low 40°.

Pressure30.42 inHg
Wind3.5 mph S
Humidity75%
Visibility6.2 mi
Dew point44°

10-day forecast for Ottawa, IL: 31° to 69°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

69°
Best day: Sunday, October 25
59° · 0.25 in
Worst day: Tuesday, October 27

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

Tue, 2068° / 42°0Clear
MorningClear46°feels 44°
AfternoonClear67°feels 65°
EveningClear53°feels 51°
OvernightClear46°feels 45°
68 °Clear

Ottawa, Tuesday, 20 October

Clear. High 68°, low 42°.

Pressure30.39 inHg
Wind3.6 mph SE
Humidity49%
Visibility6.2 mi
Dew point44°
Wed, 2167° / 44°0Clear
MorningClear45°feels 45°
AfternoonClear67°feels 66°
EveningClear56°feels 55°
OvernightClear46°feels 46°
67 °Clear

Ottawa, Wednesday, 21 October

Clear. High 67°, low 44°.

Pressure30.30 inHg
Wind2 mph SW
Humidity51%
Visibility6.2 mi
Dew point46°
Thu, 2268° / 46°0Clear
MorningClear48°feels 47°
AfternoonOvercast69°feels 68°
EveningMostly clear57°feels 56°
OvernightClear49°feels 49°
68 °Clear

Ottawa, Thursday, 22 October

Clear. High 68°, low 46°.

Pressure30.33 inHg
Wind3.7 mph E
Humidity56%
Visibility6.2 mi
Dew point51°
Fri, 2364° / 47°0Clear
MorningClear49°feels 48°
AfternoonClear62°feels 60°
EveningClear54°feels 53°
OvernightClear51°feels 50°
64 °Clear

Ottawa, Friday, 23 October

Clear. High 64°, low 47°.

Pressure30.33 inHg
Wind8.3 mph SE
Humidity54%
Visibility—
Dew point44°
Sat, 2465° / 46°0Overcast
MorningOvercast51°feels 49°
AfternoonOvercast62°feels 60°
EveningOvercast55°feels 53°
OvernightOvercast51°feels 49°
65 °Overcast

Ottawa, Saturday, 24 October

Overcast. High 65°, low 46°.

Pressure30.39 inHg
Wind7.9 mph S
Humidity49%
Visibility—
Dew point41°
Sun, 2569° / 52°0Overcast
MorningOvercast61°feels 60°
AfternoonOvercast68°feels 67°
EveningOvercast61°feels 60°
OvernightOvercast58°feels 56°
69 °Overcast

Ottawa, Sunday, 25 October

Overcast. High 69°, low 52°.

Pressure30.27 inHg
Wind11.9 mph NW
Humidity52%
Visibility—
Dew point49°
Mon, 2660° / 55°0.05Light rain
MorningLight rain56°feels 54°
AfternoonLight rain60°feels 58°
EveningLight rain57°feels 56°
OvernightLight rain58°feels 56°
60 °Light rain

Ottawa, Monday, 26 October

Light rain. High 60°, low 55°.

Pressure30.24 inHg
Wind9.4 mph SE
Humidity53%
Visibility—
Dew point42°
Tue, 2759° / 42°0.25Light rain
MorningLight rain57°feels 56°
AfternoonLight rain54°feels 52°
EveningLight rain44°feels 37°
OvernightLight rain45°feels 38°
59 °Light rain

Ottawa, Tuesday, 27 October

Light rain. High 59°, low 42°.

Pressure29.94 inHg
Wind17.3 mph N
Humidity89%
Visibility—
Dew point52°
Wed, 2841° / 31°0.01Light snow
MorningLight snow34°feels 24°
AfternoonLight snow39°feels 31°
EveningLight snow35°feels 29°
OvernightLight snow33°feels 26°
41 °Light snow

Ottawa, Wednesday, 28 October

Light snow. High 41°, low 31°.

Pressure30.33 inHg
Wind16.6 mph NW
Humidity41%
Visibility—
Dew point17°

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.