The best times to visit St James for ideal weather are

April 23rd to June 10th


August 27th 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 St James Travel Info

Weather in St James


Average temperatures in St James 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 26th 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 St James, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 92.1°F (33.4°C) with temperatures rarely dropping below 67°F (19.4°C) at night.

St James Temperatures (Fahrenheit)


St James 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.

St James Perceived Temperature (F)


St James Perceived Temperature (C)



Average St James 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 43.5 31.1 20.9
Feb 44.2 32.4 23
Mar 58.8 45.2 34.8
Apr 69.8 56.3 44.8
May 77.1 65 54.2
Jun 84.4 73.5 63.2
Jul 89.7 77.4 66.6
Aug 87.9 75.7 65.1
Sep 80 67.4 56.8
Oct 69.8 56.4 44.7
Nov 56.9 44.7 34.4
Dec 46.6 36.3 28.1

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 6.4 -0.5 -6.2
Feb 6.8 0.2 -5
Mar 14.9 7.3 1.6
Apr 21 13.5 7.1
May 25.1 18.3 12.3
Jun 29.1 23.1 17.3
Jul 32.1 25.2 19.2
Aug 31.1 24.3 18.4
Sep 26.7 19.7 13.8
Oct 21 13.6 7.1
Nov 13.8 7.1 1.3
Dec 8.1 2.4 -2.2



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in St James are January, February, and then October. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late January. For example, on the week of January 22nd 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 3 days of significant precipitation the week of June 11th.

When can you find snow in St James? 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 St James.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in St James (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 1.4
Feb 12% 0 1.7
Mar 21% 0 3.3
Apr 26% 0 4.6
May 26% 0 5.4
Jun 27% 0 4.9
Jul 16% 0 3.4
Aug 22% 0 3.6
Sep 19% 0 3.2
Oct 14% 0 2.4
Nov 20% 0 4.2
Dec 18% 0 3.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 8 0 3.6
Feb 12 0 4.3
Mar 21 0 8.4
Apr 26 0 11.7
May 26 0 13.7
Jun 27 0 12.4
Jul 16 0 8.6
Aug 22 0 9.1
Sep 19 0 8.1
Oct 14 0 6.1
Nov 20 0 10.7
Dec 18 0 9.1


Humidity and Wind

St James has some high humidity months, with other comfortably humid months. The least humid month is April (54.2% relative humidity), and the most humid month is June (67.1%).

Wind in St James is usually moderate. The windiest month is November, followed by January and April. November’s average wind speed of around 9.1 knots (10.5 MPH or 16.9 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 mid February where average top sustained speeds reach 16.3 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

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 Gentle breeze 15.1 Significant breeze
Feb 8.9 Gentle breeze 15.5 Significant breeze
Mar 8.9 Gentle breeze 15.1 Significant breeze
Apr 8.9 Gentle breeze 15.6 Significant breeze
May 7.7 Gentle breeze 14.2 Significant breeze
Jun 7.2 Gentle breeze 13.3 Significant breeze
Jul 6 Light breeze 11.4 Significant breeze
Aug 5.7 Light breeze 11.6 Significant breeze
Sep 6.4 Light breeze 11.9 Significant breeze
Oct 7.5 Gentle breeze 13.3 Significant breeze
Nov 9.1 Gentle breeze 15.3 Significant breeze
Dec 8.4 Gentle breeze 13.7 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 55.4%
Feb 55.9%
Mar 55.5%
Apr 54.2%
May 63.5%
Jun 67.1%
Jul 62.8%
Aug 63.5%
Sep 64.3%
Oct 57.1%
Nov 56.2%
Dec 66.5%


Is it Safe to Travel to St James?

Our best data indicates this area is generally safe. As of Dec 04, 2023 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 Dec 04, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in St James, MO, US is July, followed by August and February. 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 St James 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 41.4 in November means 41.4% of the tourists vs. July.



Overall St James Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 79.7°F (26.5°C) and 46.4°F (8°C) with warmer temperatures in the later months. Rain is somewhat common with 7 to 8 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 5 to 8 days of precipitation per month. June – August is the busiest season for tourism in St James, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 84.3°F (29.1°C) and 50.4°F (10.2°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 4 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 St James to be enjoyable for warm weather travelers. The average high during this season is between 48°F (8.9°C) and 40.9°F (4.9°C). On average, it rains or snows a fair amount: 3 to 6 times per month. These times of year are the second busiest with tourists.


Best Times to Travelthe United States › St James, MO, US