University of Chicago weather
Ryerson Observatory
1100 E. 58th St., Chicago, IL 60637 : 41.8 N - 87.6 W - 690 ft
08/08/11 22:56:10
Sunrise: 05:52 - Sunset: 20:01 - Moon: Waxing 76% Full

Current local conditions:

Temperature: 72.6 F
Wind Chill: 72.6 F
Heat Index: 72.6 F
Wind: N  at   0  mph
High Wind: 0 mph at 23:30
Recent Avg Wind: 0 mph
Recent Beaufort Scale: Calm
Humidity: 89 %
Today's Rain: 0.00  in
Rain Rate: 0.00  in/hr
Current radiation in the basement of the Regenstein Library: μR/hr (info)

Past records for this station:


National Weather Service forecast for Chicago:

Last Update: 10:02 pm CDT Aug 8, 2011
Hazardous Weather Outlook

Overnight: A 50 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. North northwest wind around 5 mph.
Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. West northwest wind between 5 and 15 mph, with gusts as high as 25 mph.

Tuesday Night: Partly cloudy, with a low around 65. Northwest wind around 15 mph.

Wednesday: Sunny, with a high near 76. North northwest wind between 5 and 15 mph.

Wednesday Night: Mostly clear, with a low around 64. North northwest wind around 5 mph.

Thursday: Sunny, with a high near 76.

Thursday Night: Mostly clear, with a low around 65.

Friday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.

Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 79.

Saturday Night: Partly cloudy, with a low around 67.

Sunday: Mostly sunny, with a high near 78.

Sunday Night: Mostly clear, with a low around 68.

Monday: Sunny, with a high near 79.


Chicago clear sky clock in ascii-art:
         1111111112222|#         11111111112222|#       
    Time 1234567890123|T12345678901234567890123|W1234567
  cloud2 oOooO###O##O.|....,,,,,..:,.,.....,:o,|,.......
  trans2 ############O|::::ooooooo#o::::::::O#O|oo::::::
 seeing2        ooo:::|:::::::::         oooooo|oooooooo
   wind2 ,,,,,,,,,,..,|.,,,,,,,,,,,,:::oo:oo:::|:::::::,
    hum2 ,:::::.......|............,:::oooo::::|:::::,,,
   temp2 ,,,,,,,,,,,,,|,,,,,,,,,,,,,,,,,,,,,,,,|,,,,,,,,

Key: larger character = worse for astronomy


Weather station and web page maintained by the Ryerson Astronomical Society at the University of Chicago. Send questions and comments to Luitien Pan (weather station chief) or Tad Komacek (current RAS president).

Local weather data collected using a Vantage Pro2 weather station from Davis Instruments. Thanks to the SGFC for providing funding to purchase this station.

Radar maps and forecasts are from the National Weather Service. Satellite images are from the Space Science and Engineering Center at UW-Madison. Clear sky clocks are from ClearDarkSky, using data from the Canadian Meteorological Center. Midway webcam images are from NSIT.

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