Photo: Roastedbeanz1 · CC BY-SA 4.0For weather, Foristell is about as ordinary as U.S. towns get
High summer brings afternoon highs near 88°. Winter and summer sit 67° apart. In July, afternoons here are warmer than in 67% of U.S. towns. Warm coats and heating bills mark the months from November to March, when means dip under 50°.
A year in Foristell at a glance
Each month’s typical high and low, and what it brings.
What stands out about Foristell’s climate
Compared with towns across the U.S., with Foristell’s place in Missouri beside it.
What a year in Foristell feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 191 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by October 23. Frost and day counts come from NOAA’s station at Warrenton 1 N, MO, 10 miles from the town’s center, 150 ft higher.
The 2023 USDA map puts Foristell’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −2°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 14 inches of snow a winter
Snow, measured at Weldon Spring Nws, MO, is heaviest from January through February, about 4 inches a month. Precipitation (rain plus melted snow) adds up to 43 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 107 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Foristell
80% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Warrenton 1 N, MO.
Living with Foristell’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
191 frost-free days in zone 6b. The last frost comes by Apr 14 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 23.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Foristell from natural hazards, river flooding is the largest share (45%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Foristell and its neighbors
Every town next door is within a degree of Foristell in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Foristell’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Foristell, MO | 21° | 88° | 43" | 14" |
| Louisburg, KS | 21° | 88° | 41" | 14" |
| Terre Haute, IN | 21° | 87° | 43" | 15" |
| Robinson, IL | 22° | 87° | 45" | 12" |
| Reading, OH | 23° | 87° | 44" | 16" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Foristell averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.4°).
A smaller shift than in 64% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Foristell compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Foristell’s place among Missouri’s.
Foristell weather by month
Highs, lows and precipitation from NOAA’s grid at Foristell’s center; snow, wet days and snow on the ground from Weldon Spring Nws, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 21° | 2.5" | 4.1" | 8 | 5 | 24° – 41° |
| February | 45° | 25° | 2.3" | 3.7" | 8 | 4 | 24° – 45° |
| March | 55° | 33° | 3.4" | 1.7" | 10 | 1 | 37° – 58° |
| April | 67° | 43° | 4.7" | 0.2" | 10 | 0 | 48° – 61° |
| May | 76° | 54° | 5.0" | 0.0" | 13 | 0 | 60° – 72° |
| June | 84° | 63° | 4.4" | 0.0" | 10 | 0 | 68° – 78° |
| July | 88° | 67° | 4.1" | 0.0" | 8 | 0 | 72° – 84° |
| August | 87° | 65° | 3.8" | 0.0" | 8 | 0 | 69° – 82° |
| September | 80° | 56° | 3.6" | 0.0" | 7 | 0 | 63° – 75° |
| October | 68° | 45° | 3.3" | 0.0" | 9 | 0 | 51° – 62° |
| November | 55° | 35° | 3.5" | 0.8" | 8 | 1 | 37° – 52° |
| December | 43° | 26° | 2.6" | 3.0" | 8 | 4 | 21° – 43° |
| Year | 65° | 44° | 43.1" | 13.5" | 107 | 15 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 21° to 43°. June is the most reliable, staying within 10°.
Where Foristell’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Foristell’s center.
- Snow: Weldon Spring Nws, MO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Warrenton 1 N, MO, 10 miles from the town’s center, 150 ft higher; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Foristell’s climate
What is the weather like in Foristell?
A typical July afternoon reaches 88°, a January night drops to 21°, and about 14 inches of snow falls in a normal winter. Colder January nights than 54% of U.S. towns; hotter July afternoons than 67% of U.S. towns.
How cold does it get in Foristell in winter?
January nights average 21°. About 111 nights a year reach 32° or below and 4 reach 0° or below. In the coldest January of the last 30 years the month averaged 24°.
How much snow does Foristell get?
About 14 inches in a normal winter at Weldon Spring Nws, MO, heaviest from January through February, about 4 inches a month, with snow on the ground about 15 days a year.
How hot does it get in Foristell?
July, with a typical high of 88° and a low of 67°. About 31 days a year reach 90° and 2 reach 100° (Warrenton 1 N, MO).
When is the first and last frost in Foristell?
In half of years the last spring frost (32°) comes by April 14 and the first fall frost by October 23, about 191 frost-free days, at Warrenton 1 N, MO.
What growing zone is Foristell in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −2°.
What is the best time of year to visit Foristell?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Foristell getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 64% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Foristell.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.