The best times to visit Rochelle for ideal weather are

April 30th to October 14th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Rochelle Travel Info

Weather in Rochelle


Average temperatures in Rochelle vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is less temperate than some — in the 39th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Rochelle, the hottest months are July, June, and then August. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 83.3°F (28.5°C) with temperatures rarely dropping below 61.6°F (16.4°C) at night.

Rochelle Temperatures (Fahrenheit)


Rochelle Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Rochelle Perceived Temperature (F)


Rochelle Perceived Temperature (C)



Average Rochelle Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 29 19.9 11.2
Feb 29.6 20.7 12
Mar 47.5 36.6 28.3
Apr 62.1 49 38.3
May 75.1 61.5 49.6
Jun 81.4 69.5 58.7
Jul 82.3 71 60.1
Aug 80.8 69.2 58.5
Sep 76 62.2 50.6
Oct 63.2 50.3 39.3
Nov 48.2 37.6 28.7
Dec 34.2 26.3 18.5

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -1.7 -6.7 -11.6
Feb -1.3 -6.3 -11.1
Mar 8.6 2.6 -2.1
Apr 16.7 9.4 3.5
May 23.9 16.4 9.8
Jun 27.4 20.8 14.8
Jul 27.9 21.7 15.6
Aug 27.1 20.7 14.7
Sep 24.4 16.8 10.3
Oct 17.3 10.2 4.1
Nov 9 3.1 -1.8
Dec 1.2 -3.2 -7.5



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Rochelle are January, March, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late September. For example, on the week of September 24th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 2 days of significant precipitation the week of June 11th.

When can you find snow in Rochelle? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Rochelle.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Rochelle (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 8% 0 1
Feb 12% 0 1.1
Mar 10% 0 1.3
Apr 18% 0 2.1
May 20% 0 2.3
Jun 30% 0 4.3
Jul 13% 0 1.6
Aug 15% 0 2.1
Sep 13% 0 1.3
Oct 15% 0 2.1
Nov 10% 0 1.3
Dec 15% 0 1.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 8 0 2.5
Feb 12 0 2.8
Mar 10 0 3.3
Apr 18 0 5.3
May 20 0 5.8
Jun 30 0 10.9
Jul 13 0 4.1
Aug 15 0 5.3
Sep 13 0 3.3
Oct 15 0 5.3
Nov 10 0 3.3
Dec 15 0 4.6


Humidity and Wind

Rochelle has some very humid months, with other comfortably humid months. The least humid month is May (52.8% relative humidity), and the most humid month is December (78.9%).

Wind in Rochelle is usually moderate. The windiest month is April, followed by May and January. April’s average wind speed of around 10.4 knots (12 MPH or 19.3 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid April where average top sustained speeds reach 19.9 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Rochelle.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 9.3 Gentle breeze 16.7 Significant breeze
Feb 9.2 Gentle breeze 16.6 Significant breeze
Mar 8.9 Gentle breeze 16.5 Significant breeze
Apr 10.4 Gentle breeze 19.4 Strong breeze
May 9.4 Gentle breeze 18.4 Significant breeze
Jun 7.2 Gentle breeze 15.8 Significant breeze
Jul 4.8 Light breeze 11.9 Significant breeze
Aug 4.2 Light breeze 10.9 Gentle breeze
Sep 5.1 Light breeze 11.9 Significant breeze
Oct 6.9 Light breeze 14.5 Significant breeze
Nov 8.8 Gentle breeze 16.4 Significant breeze
Dec 8.5 Gentle breeze 16.1 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 72.7%
Feb 71.8%
Mar 66.8%
Apr 56%
May 52.8%
Jun 60.9%
Jul 68.3%
Aug 71.3%
Sep 65.3%
Oct 62.1%
Nov 67.6%
Dec 78.9%


Is it Safe to Travel to Rochelle?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Rochelle, IL, US is July, followed by June and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Rochelle in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 38.7 in November means 38.7% of the tourists vs. July.



Overall Rochelle Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 79.5°F (26.4°C) and 32.7°F (0.4°C) with far warmer temperatures in the later months. Rain is somewhat common with 3 to 6 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 4 to 9 days of precipitation per month. June – August is the busiest season for tourism in Rochelle, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 78.6°F (25.9°C) and 39.9°F (4.4°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 3 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Rochelle to be enjoyable for warm weather travelers. The average high during this season is between 34.8°F (1.6°C) and 26.7°F (-2.9°C). On average, it rains or snows a smalll amount: 2 to 5 times per month. These times of year are fairly slow with tourists.


Best Times to Travelthe United States › Rochelle, IL, US