2018 Long Range Weather Forecast for Chicago, IL


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See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.

To see long term forecasts for the entire year, pick up a copy of the annual Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific. If your city is located inside a region, the region's forecast will apply to you.

Free 2-Month Weather Forecast

March 2018 Long Range Weather Forecast for Lower Lakes
DatesWeather Conditions
Mar 1-9Rainy periods, warm
Mar 10-15Rain to snow, then flurries, cold
Mar 16-22Showers, mild
Mar 23-27Rainy periods, cooler
Mar 28-31Rain and snow showers, cool
Marchtemperature 44° (6° above avg.)
precipitation 4" (1" above avg.)

April 2018 Long Range Weather Forecast for Lower Lakes
DatesWeather Conditions
Apr 1-7Snow showers, then sunny, cool
Apr 8-15Rainy periods, warm
Apr 16-19Sunny, cool
Apr 20-25Rainy periods, turning warm
Apr 26-30Showers, cool
Apriltemperature 50° (2° above avg.)
precipitation 2.5" (1" below avg.)

Annual Weather Summary: November 2017 to October 2018

Winter will be warmer than normal, with slightly above-normal precipitation. The coldest periods will be in early to mid-December, early January, and mid-February. Snowfall will be above normal in Ohio and below normal elsewhere, with the snowiest periods in early to mid-December, late December, early January, and early February. April and May will be warmer and slightly drier than normal. Summer will be hotter and drier than normal. The hottest periods will be in early to mid- and late July and mid-August. September and October will be warmer than normal. Rainfall will be above normal in the west and below normal elsewhere.

Map showing Old Farmer's Almanac long range weather region number 6

About the Lower Lakes Region

The Lower Lakes long range weather region includes all or part of the following states: ILLINOIS (Aurora, Chicago, Naperville, Peoria, Rockford), INDIANA (Fort Wayne, Gary, Hammond, Indianapolis, South Bend), MICHIGAN (Detroit, Flint, Grand Rapids, Sterling Heights, Warren), NEW YORK (Buffalo, Cheektowaga, Niagara Falls, Rochester, Tonawanda), OHIO (Akron, Cleveland, Dayton, Parma, Toledo), PENNSYLVANIA (Erie, Hermitage, Meadville, Sharon, Warren), WISCONSIN (Kenosha, Madison, Milwaukee, Racine, Waukesha).

Lower Lakes Neighboring Regions

Here are the regions that neighbor the Lower Lakes long range weather region:

Temperature and Precipitation November 2017 to October 2018

Temperature and Precipitation Graph

Reader Comments

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wedding weather?

Our forecast calls for “A few t-storms, warm” from July 13 to 25, and “sunny, turning hot” for July 26 to 31. Even if thunder(“t”)storms are not forecast, we recommend renting a tent or, as the other commenter suggests via her experience, having access to a covered area. Best wishes (and weather)!


How will the weather be in the Detroit area on May 12 & 13? Thank you.

Farmer's Almanac vs NOAA

..... IMO ... Farmer's Almanac is +81.50% better at predicting the weather than what NOAA can do.

December 2018

Wondering what the weather (hopefully snow) will be like for December 2018? I'm getting married December 1st, 2018 and I NEED snow.

weather on May 3 & 4th 2018

How will the weather be May 3 & 4th... rain ? temp?


For early May, we are forecasting rain showers and milder-than-normal temperatures.

Weather in Oct

How's the weather going to be around the 6th of Oct?


I purchased the app in hopes of seeing weekends where it’s less likely to rain in the Lower Lakes area so we can start planning our camping trips. We tent camp with friends and would prefer dry weather. Unfortunately I only see general predictions about the month.


The weather events are given in the actual almanac. I've used it and on most trips it has been very accurate. I will continue to use it as long as they print it. It goes in my pack last so I can get to it easily and never needs charging! Lol Good day!


We’re trying to pick our wedding date. It’s going to be in our back yard in Clarkston Michigan. We’re trying to decide 3rd weekend in August or second weekend in September. It’s our second marriage and we’ve been together for 15 years. Ya. About time. So you can see the importance of the weather. We will look further but any good advice I’d appreciate