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Station OKSI2 - Oak St., Chicago, IL

Owned and maintained by Chicago Park District
C-MAN Station
41.912 N 87.624 W (41°54'44" N 87°37'25" W)

Site elevation: 179 m above mean sea level

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Conditions at OKSI2 as of
(11:00 pm CDT on 07/17/2026)
0400 GMT on 07/18/2026:
Unit of Measure: Time Zone: Click on the graph icon in the table below to see a time series plot of the last five days of that observation.
Wind Direction (WDIR):	WSW ( 250 deg true )
Wind Speed (WSPD):	2 kts
Wind Gust (GST):	7 kts
Air Temperature (ATMP):	85.8 °F
Wind Speed at 10 meters (WSPD10M):	2 kts
Wind Speed at 20 meters (WSPD20M):	2 kts
Combined plot of Wind Speed, Gust, and Air Pressure

Previous observations
TIME (CDT)	WDIR	WSPD kts	GST kts	WVHT ft	DPD sec	APD sec	MWD	PRES in	PTDY in	ATMP °F	WTMP °F	DEWP °F	SAL psu	VIS nmi	TIDE ft
2026-07-17 10:00 pm	NNW	2	4	-	-	-	-	-	-	87.1	-	-	-	-	-
2026-07-17 09:00 pm	-	0	1	-	-	-	-	-	-	81.7	-	-	-	-	-
2026-07-17 08:00 pm	E	1	2	-	-	-	-	-	-	84.0	-	-	-	-	-
2026-07-17 07:00 pm	ESE	4	5	-	-	-	-	-	-	84.4	-	-	-	-	-
2026-07-17 06:00 pm	ESE	6	8	-	-	-	-	-	-	84.4	-	-	-	-	-
2026-07-17 05:00 pm	E	5	6	-	-	-	-	-	-	85.5	-	-	-	-	-
2026-07-17 04:00 pm	E	3	4	-	-	-	-	-	-	83.5	-	-	-	-	-
2026-07-17 03:00 pm	E	5	6	-	-	-	-	-	-	83.8	-	-	-	-	-
2026-07-17 02:00 pm	ESE	5	6	-	-	-	-	-	-	85.1	-	-	-	-	-
2026-07-17 01:00 pm	ESE	2	5	-	-	-	-	-	-	86.9	-	-	-	-	-
2026-07-17 12:00 pm	E	5	6	-	-	-	-	-	-	82.8	-	-	-	-	-
2026-07-17 11:00 am	ESE	6	8	-	-	-	-	-	-	83.7	-	-	-	-	-
2026-07-17 10:00 am	ESE	3	5	-	-	-	-	-	-	84.0	-	-	-	-	-
2026-07-17 09:00 am	ESE	7	9	-	-	-	-	-	-	82.6	-	-	-	-	-
2026-07-17 08:00 am	N	2	3	-	-	-	-	-	-	81.9	-	-	-	-	-
2026-07-17 07:00 am	NNE	1	2	-	-	-	-	-	-	81.1	-	-	-	-	-
2026-07-17 06:00 am	-	0	2	-	-	-	-	-	-	81.0	-	-	-	-	-
2026-07-17 05:00 am	-	0	1	-	-	-	-	-	-	80.1	-	-	-	-	-
2026-07-17 04:00 am	NNE	1	3	-	-	-	-	-	-	80.8	-	-	-	-	-
2026-07-17 03:00 am	E	4	6	-	-	-	-	-	-	79.5	-	-	-	-	-
2026-07-17 02:00 am	ESE	2	4	-	-	-	-	-	-	78.8	-	-	-	-	-
2026-07-17 01:00 am	ESE	4	5	-	-	-	-	-	-	78.8	-	-	-	-	-
2026-07-17 12:00 am	E	6	8	-	-	-	-	-	-	79.0	-	-	-	-	-

Solar Radiation Conditions at OKSI2 as of
(11:00 pm CDT on 07/17/2026)
0400 GMT on 07/18/2026:
Unit of Measure: Time Zone: Click on the graph icon in the table below to see a time series plot of the last five days of that observation.
Short Wave Radiation 1 (SRAD1):	-6.2	watts/meter²

Previous observations
TIME (CDT)	SRAD1 w/m²	SRAD2 w/m²	LRAD w/m²
2026-07-17 10:00 pm	-6.4	-	-
2026-07-17 09:00 pm	-5.8	-	-
2026-07-17 08:00 pm	6.0	-	-
2026-07-17 07:00 pm	142.9	-	-
2026-07-17 06:00 pm	124.4	-	-
2026-07-17 05:00 pm	114.7	-	-
2026-07-17 04:00 pm	583.4	-	-
2026-07-17 03:00 pm	87.6	-	-
2026-07-17 02:00 pm	225.1	-	-
2026-07-17 01:00 pm	805.6	-	-
2026-07-17 12:00 pm	153.1	-	-
2026-07-17 11:00 am	664.0	-	-
2026-07-17 10:00 am	657.4	-	-
2026-07-17 09:00 am	256.3	-	-
2026-07-17 08:00 am	218.5	-	-
2026-07-17 07:00 am	82.7	-	-
2026-07-17 06:00 am	11.6	-	-
2026-07-17 05:00 am	-5.2	-	-
2026-07-17 04:00 am	-5.4	-	-
2026-07-17 03:00 am	-5.4	-	-
2026-07-17 02:00 am	-4.9	-	-
2026-07-17 01:00 am	-6.4	-	-
2026-07-17 12:00 am	-5.0	-	-

Description of Measurements

Links which are specific to this station are listed below:

Real Time Data in tabular form for the last forty-five days.

Historical Data & Climatic Summaries for quality controlled data for prior months and years.

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