• Today

    Sep 3

    91°Lo 68°

    Hot and humid with some sun

    Fair for stargazing
    • Cloud
      Cover
      46%
    • Precip
      25%
    • Hours of Precip
      0
  • Fri

    Sep 4

    90°Lo 70°

    A thunderstorm in spots

    Fair for stargazing
    • Cloud
      Cover
      26%
    • Precip
      40%
    • Hours of Precip
      1.5
    more
  • Sat

    Sep 5

    90°Lo 69°

    Partly sunny and hot

    Very Good for stargazing
    • Cloud
      Cover
      30%
    • Precip
      7%
    • Hours of Precip
      0
    more
  • Sun

    Sep 6

    92°Lo 74°

    Partly sunny and hot

    Fair for stargazing
    • Cloud
      Cover
      71%
    • Precip
      55%
    • Hours of Precip
      1
    more
  • Mon

    Sep 7

    87°Lo 69°

    A t-storm in the afternoon

    Poor for stargazing
    • Cloud
      Cover
      95%
    • Precip
      25%
    • Hours of Precip
      1
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
5pm
6pm 7pm 8pm 9pm 10pm 11pm Fri
12am
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Forecast
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 89° 87° 84° 82° 80° 77° 75° 74°
RealFeel® 95° 93° 89° 86° 84° 81° 77° 77°
Humidity 56% 63% 68% 66% 75% 80% 80% 83%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Rain
 
2%
 
2%
 
4%
 
7%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Wind (mph) 7 WSW 6 WSW 5 SW 4 SW 4 SW 4 SW 4 SW 4 SW
UV Index 1 1 0 0 0 0 0 0
Cloud Cover 62% 52% 46% 46% 46% 46% 46% 46%
Dew Point 72° 73° 72° 70° 71° 70° 68° 69°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2014
High 91° 81° 98° (1925) 85°
Low 68° 59° 42° (1974) 63°

Solunar Information for Ottawa, IL

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:23 AM with 13:02 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:46 PM with 14:24 of moolight, then sets at 1:10 PM

Sat, Sep 5
Last
Sun, Sep 13
New
Mon, Sep 21
First
Mon, Sep 28
Full

Ottawa Weather Report

Chicago: Sun, Humidity to Grip Region Before Stormy Labor Day

September 3, 2015; 12:03 PM ET

As the Labor Day weekend shapes up, Chicago residents will see mostly sunny and humid conditions until the holiday itself on Monday. more >

Curiosity Tastes Mars

Dec 14, 2012; 5:00 AM ET The Mars Science Laboratory Rover 'Curiosity' continues its sampling and analyzing of the Martian surface.

Thu. Stargazing