2021 Long Range Weather Forecast for Saint Louis, MO
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 2021 Old Farmer’s Almanac, available online and in stores.
Note: Long range forecasts are regional, not city-specific.
Free 2-Month Weather Forecast
| Dates | Weather Conditions |
|---|---|
| Apr 1-7 | Sunny; warm north, cool south |
| Apr 8-11 | T-storms, warm |
| Apr 12-24 | Rainy periods, cool |
| Apr 25-30 | Scattered t-storms, cool |
| April | temperature 55° (3° above avg. north, 1° below south) precipitation 3.5" (avg.) |
| Dates | Weather Conditions |
|---|---|
| May 1-5 | Sunny; warm north, cool south |
| May 6-10 | Rainy periods, cool |
| May 11-15 | Sunny, turning warm |
| May 16-28 | Scattered t-storms, cool |
| May 29-31 | Sunny, warm |
| May | temperature 63° (1° above avg. north, 3° below south) precipitation 3" (1.5" below avg.) |
Annual Weather Summary
November 2020 to October 2021
November 2020 to October 2021
Winter temperatures will be well above normal, on average, with the coldest periods in mid-December, from late December into early January, and in late February. Precipitation will be below normal, with snowfall below normal in most places. The snowiest periods will be in mid-November, early to mid-December, and mid-February. April and May temperatures will be above normal in the north and below normal in the south, with below-normal rain. Summer will be cooler and drier than normal, with the hottest periods in early July and mid-August. September and October will bring below-normal temperatures and rainfall.
About the Heartland Region
The Heartland long range weather region includes all or part of the following states: ILLINOIS (Belleville, Galesburg, Moline, Quincy, Rock Island), IOWA (Cedar Rapids, Davenport, Des Moines, Sioux City, Waterloo), KANSAS (Kansas City, Olathe, Overland Park, Topeka, Wichita), MISSOURI (Columbia, Independence, Kansas City, Saint Louis, Springfield), NEBRASKA (Bellevue, Fremont, Grand Island, Lincoln, Omaha), SOUTH DAKOTA (Yankton), WISCONSIN (Baraboo, Fitchburg, Madison, Middleton, Monroe).
Heartland Neighboring Regions
Here are the regions that neighbor the Heartland long range weather region:
Temperature and Precipitation November 2020 to October 2021
