The best times to visit Marion 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 Marion Travel Info

Weather in Marion


Average temperatures in Marion vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 35th 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 Marion, 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 87.1°F (30.6°C) with temperatures rarely dropping below 60.8°F (16°C) at night.

Marion Temperatures (Fahrenheit)


Marion 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.

Marion Perceived Temperature (F)


Marion Perceived Temperature (C)



Average Marion 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 32.5 24.6 17.9
Feb 33.5 24.7 17
Mar 50.6 39.4 30.6
Apr 64.6 51.7 41
May 75.2 63.9 53.7
Jun 82.4 70.7 60.8
Jul 85.7 73 60.2
Aug 85.4 70.2 56.4
Sep 77.1 63.7 52.4
Oct 64.1 52.3 43
Nov 49.8 40.4 32.5
Dec 42.7 35.4 29.4

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 0.3 -4.1 -7.8
Feb 0.8 -4.1 -8.3
Mar 10.3 4.1 -0.8
Apr 18.1 10.9 5
May 24 17.7 12.1
Jun 28 21.5 16
Jul 29.8 22.8 15.7
Aug 29.7 21.2 13.6
Sep 25.1 17.6 11.3
Oct 17.8 11.3 6.1
Nov 9.9 4.7 0.3
Dec 5.9 1.9 -1.4



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Marion are July, August, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early February. For example, on the week of February 5th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late February and early March with an average of 3 days of significant precipitation the week of February 26th.

When can you find snow in Marion? 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 Marion.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 15% 0 2
Feb 16% 0 1.2
Mar 14% 0 1.6
Apr 24% 0 3
May 19% 0 2.7
Jun 18% 0 3.2
Jul 11% 0 1.5
Aug 12% 0 2
Sep 18% 0 3.2
Oct 16% 0 2
Nov 21% 0 2.8
Dec 21% 0 3.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 15 0 5.1
Feb 16 0 3
Mar 14 0 4.1
Apr 24 0 7.6
May 19 0 6.9
Jun 18 0 8.1
Jul 11 0 3.8
Aug 12 0 5.1
Sep 18 0 8.1
Oct 16 0 5.1
Nov 21 0 7.1
Dec 21 0 7.9


Humidity and Wind

Marion has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is April (49.9% relative humidity), and the most humid month is December (69.3%).

Wind in Marion is usually calm. The windiest month is January, followed by November and April. January’s average wind speed of around 9.6 knots (11 MPH or 17.8 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 January where average top sustained speeds reach 18.8 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 9.6 Gentle breeze 17 Strong breeze
Feb 8.4 Gentle breeze 15.6 Significant breeze
Mar 7.7 Gentle breeze 14.9 Strong breeze
Apr 8.8 Gentle breeze 17.5 Strong breeze
May 7.3 Gentle breeze 15.2 Strong breeze
Jun 5.6 Light breeze 13.8 Significant breeze
Jul 3.5 Barely noticeable 10.2 Strong breeze
Aug 3.1 Barely noticeable 9.5 Gentle breeze
Sep 4.1 Light breeze 11.3 Strong breeze
Oct 6.3 Light breeze 14.4 Significant breeze
Nov 8.8 Gentle breeze 15.8 Strong breeze
Dec 8.3 Gentle breeze 15.1 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 66.7%
Feb 63.3%
Mar 58.1%
Apr 49.9%
May 52.9%
Jun 59.4%
Jul 63.3%
Aug 64.1%
Sep 56.8%
Oct 53.8%
Nov 57.2%
Dec 69.3%


Is it Safe to Travel to Marion?

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 Marion, IN, US is July, followed by June and May. 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 Marion 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 44.5 in November means 44.5% of the tourists vs. July.



Overall Marion Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 80.2°F (26.8°C) and 37°F (2.8°C) with far warmer temperatures in the later months. Rain is somewhat common with 4 to 7 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 quite warm. These months see the least precipitation with 3 to 5 days of precipitation per month. June – August is the busiest season for tourism in Marion, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 81.2°F (27.3°C) and 44.1°F (6.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 5 to 6 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 Marion to be enjoyable for warm weather travelers. The average high during this season is between 43.3°F (6.3°C) and 30.7°F (-0.7°C). On average, it rains or snows a fair amount: 5 to 6 times per month. These times of year are fairly slow with tourists.


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