River Forest Weather History Illinois, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Wed 12 Aug, 2026 Weather in River Forest

Sunrise: 05:56 AM Sunset: 07:56 PM	Moonrise: 05:17 AM Moonset: 07:56 PM	Max: 29.2 °c	Min: 20.9 °c	Avg: 24.3 °c	Precip: 10.48 mm	Max Wind: 9.0 kph

	Wed 12 0:00 am	Wed 12 3:00 am	Wed 12 6:00 am	Wed 12 9:00 am	Wed 12 12:00 pm	Wed 12 3:00 pm	Wed 12 6:00 pm	Wed 12 9:00 pm
Icon
Temp	22.1°c	21.5°c	20.9°c	23.8°c	25.7°c	29.2°c	27.2°c	23.8°c
Wind	4.7 kmph	4.7 kmph	4.3 kmph	6.1 kmph	6.1 kmph	7.2 kmph	3.2 kmph	2.5 kmph
Precip	0.00 mm	0.32 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.02 mm	0.00 mm
Cloud	2%	71%	12%	47%	13%	9%	73%	13%
Humidity	94%	96%	96%	85%	71%	52%	65%	83%
Pressure	1009 mb	1010 mb	1009 mb	1011 mb	1010 mb	1009 mb	1010 mb	1010 mb

River Forest Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-1°C / 30°F	-7°C / 19°F	-4°C / 25°F	115 hours	58.98 mm / 2.32 In	8 days	1019 mb / 31 In
February	1°C / 34°F	-6°C / 22°F	-2°C / 28°F	117 hours	65.90 mm / 2.59 In	7 days	1019 mb / 31 In
March	8°C / 46°F	0°C / 33°F	4°C / 39°F	141 hours	100.29 mm / 3.95 In	7 days	1018 mb / 31 In
April	13°C / 55°F	5°C / 41°F	9°C / 48°F	140 hours	156.02 mm / 6.14 In	9 days	1014 mb / 30 In
May	19°C / 66°F	11°C / 52°F	15°C / 59°F	175 hours	146.85 mm / 5.78 In	9 days	1015 mb / 30 In
June	25°C / 77°F	17°C / 62°F	21°C / 69°F	206 hours	161.10 mm / 6.34 In	8 days	1013 mb / 30 In
July	28°C / 82°F	20°C / 68°F	24°C / 75°F	220 hours	125.87 mm / 4.96 In	8 days	1015 mb / 30 In
August	27°C / 81°F	19°C / 67°F	23°C / 74°F	242 hours	113.56 mm / 4.47 In	8 days	1015 mb / 30 In
September	24°C / 75°F	16°C / 61°F	20°C / 68°F	230 hours	90.15 mm / 3.55 In	6 days	1017 mb / 31 In
October	16°C / 62°F	10°C / 49°F	13°C / 55°F	173 hours	110.59 mm / 4.35 In	7 days	1016 mb / 30 In
November	9°C / 48°F	3°C / 37°F	6°C / 42°F	168 hours	74.86 mm / 2.95 In	5 days	1019 mb / 31 In
December	3°C / 37°F	-3°C / 27°F	0°C / 32°F	120 hours	72.61 mm / 2.86 In	7 days	1019 mb / 31 In

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