Iron Mountain, MO
Unincorporated community in St. Francois County, Missouri
Iron Mountain is a small unincorporated community in St. Francois County, Missouri. It is 1.1 miles E of Iron Mountain Lake, the nearest town. Its ZIP code is 63624.
Iron Mountain at a glance
- State
- Missouri
- County
- St. Francois County
- ZIP code
- 63624
- Nearest town
- Iron Mountain Lake (1.1 mi)
- Time zone
- America/Chicago
- Coordinates
- 37.6953, -90.6403
Weather in Iron Mountain now
Loading the National Weather Service forecast…
Iron Mountain weather by the hour
Iron Mountain weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Iron Mountain.
This week in Iron Mountain
Sunrise, sunset and moon in Iron Mountain
What is the weather usually like in Iron Mountain?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 23°F average low
- 45.2 inprecipitation per year · 1,147 mm
- 8.7 insnowfall per year · 22 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Iron Mountain: May–June and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station FARMINGTON, MO US (USC00232809), adjusted for the elevation of Iron Mountain.
Iron Mountain weather month by month
Sunrise and sunset in Iron Mountain through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:14 AM | 5:09 PM | 9 h 54 min |
| February | 6:50 AM | 5:43 PM | 10 h 52 min |
| March | 7:11 AM | 7:11 PM | 11 h 59 min |
| April | 6:25 AM | 7:39 PM | 13 h 13 min |
| May | 5:51 AM | 8:06 PM | 14 h 15 min |
| June | 5:38 AM | 8:27 PM | 14 h 48 min |
| July | 5:51 AM | 8:25 PM | 14 h 33 min |
| August | 6:17 AM | 7:56 PM | 13 h 39 min |
| September | 6:43 AM | 7:11 PM | 12 h 28 min |
| October | 7:09 AM | 6:26 PM | 11 h 16 min |
| November | 6:41 AM | 4:52 PM | 10 h 11 min |
| December | 7:09 AM | 4:46 PM | 9 h 37 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Iron Mountain?
Iron Mountain has a humid subtropical climate. The warmest month is July, with an average high of 89°F (31°C), and the coldest is January, with average lows of 23°F (-5°C).
It gets about 45.2 inches (1,147 mm) of precipitation a year. The wettest month is May and the driest is January. Snow is common: about 9 inches fall in an average year.
The best time to visit Iron Mountain is May–June and September–October. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Iron Mountain
The closest live webcam is Perryville, 42.5 miles E of Iron Mountain.
Webcams: Windy.com. Distances in a straight line from Iron Mountain.
Do you know Iron Mountain? Tell us about it
Help other travelers: share what makes Iron Mountain special. We review every message before publishing it.
Map of Iron Mountain, MO
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Iron Mountain Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Towns near Iron Mountain
Other communities near Iron Mountain
Questions about Iron Mountain
Where is Iron Mountain, MO?
Iron Mountain is an unincorporated community in St. Francois County, Missouri, 1.1 miles E of Iron Mountain Lake.
What county is Iron Mountain in?
Iron Mountain is in St. Francois County, Missouri.
What is the ZIP code of Iron Mountain, MO?
The ZIP code for Iron Mountain is 63624.
What is the nearest town to Iron Mountain?
Iron Mountain Lake, 1.1 miles away.
Are there webcams near Iron Mountain?
Yes. The closest is Perryville, 42.5 miles away.
What is the hottest month in Iron Mountain?
July, with an average high of 89°F (31°C).
What is the coldest month in Iron Mountain?
January, with an average low of 23°F (-5°C).
How much does it rain in Iron Mountain?
About 45.2 inches (1,147 mm) a year; the wettest month is May.
Does it snow in Iron Mountain?
Yes, about 9 inches of snow fall in an average year.
When is the best time to visit Iron Mountain?
May–June and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Iron Mountain have?
Humid subtropical (Köppen Cfa).
Last updated: