Elk Mountain, Wyoming Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Elk Mountain weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——78°49°—
- FridayJun 5Clear——79°48°+1°
- SaturdayJun 6Overcast18%—82°56°+3°
- SundayJun 7Overcast——76°55°-6°
- MondayJun 8Overcast——77°54°+1°
- TuesdayJun 9Overcast——82°56°+5°
- WednesdayJun 10Light Rain—0.19″76°55°-6°
Ozone at AQI 56. AQI up 6 over the last 6 hours (gradual rise). Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 56. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
- Present
- AQI 56
- UV peak
- 9.6 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 36
PM × Wind × Precip
PM2.5/PM10 ratio 0.46 with 21 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.46
- Wind
- windy
- Recent rain
- 0h in last 6h
- Pattern
- transport
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:42 AM
- Moonset
- 3:05 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Elk Mountain at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 4, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
SPC Convective Outlook
Storm Prediction Center — Elk Mountain
SPC has placed Elk Mountain in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Elk Mountain's warmest month is July (~66°F mean) and its coldest is January (~25°F). Rainfall peaks in May (1.8 inches) and bottoms out in January (0.7 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 25° | 0.7″ | 2 |
| February | 26° | 0.8″ | 3 |
| March | 34° | 1.3″ | 3 |
| April | 40° | 1.5″ | 4 |
| May | 49° | 1.8″ | 4 |
| June | 59° | 1.1″ | 3 |
| July | 66° | 0.9″ | 2 |
| August | 64° | 0.7″ | 2 |
| September | 56° | 1.1″ | 3 |
| October | 45° | 1.3″ | 4 |
| November | 33° | 0.9″ | 3 |
| December | 25° | 0.9″ | 3 |
Regional context
Elk Mountain's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 25°F to a July mean of 66°F — a 41°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 12.9 inches spread across roughly 35 days with measurable rain or snow each year.
Rainfall stays relatively even across the calendar: May tops out at 1.8 inches across 4.0 days with measurable rain, and January settles around 0.7 inches across 1.9 rainy days — a comparatively narrow seasonal range. That even-rainfall rhythm puts Elk Mountain alongside places like Arlington, WY, Hanna, WY and Medicine Bow, WY — places without a single dominant storm season, where moisture arrives steadily across the calendar.
The frost-sensitive growing window opens around mid-April, when overnight lows reliably clear freezing for cool-season crops like kale, peas, spinach, and parsnips. Heat-loving transplants like tomatoes, peppers, and squash generally hold off for another 10-14 days to clear the last spring frost risk window. The window closes around mid-November, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. These dates represent 30-year central tendencies; actual year-to-year variation can shift either bookend by 7-14 days, and local microclimate features within Elk Mountain — cold-air drainage on calm clear nights, slope aspect, distance from any nearby lake or river — can push the practical frost window earlier or later than the regional average.
Similar climates: Arlington, WY, Hanna, WY, Medicine Bow, WY, Rock River, WY, Ryan Park, WY.
Frequently asked
- When does it freeze in Elk Mountain?
- Elk Mountain's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Elk Mountain?
- May is the wettest month with about 1.8 inches of rain on average; the city receives roughly 13 inches annually.
- What is the warmest month in Elk Mountain?
- July is typically warmest, averaging about 66°F.
- What is the coldest month in Elk Mountain?
- January is typically coldest, averaging about 25°F.
- When can I start a vegetable garden in Elk Mountain?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Elk Mountain get?
- Elk Mountain averages about 35 rainy days per year.
- What hardiness zone is Elk Mountain?
- Elk Mountain's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Elk Mountain, Wyoming sits in a cold semi-arid climate zone. January means hover near 25°F while July averages 66°F — a 41°F seasonal swing.
Across the year, Elk Mountain receives about 13 inches of precipitation spread over roughly 35 rainy days.
The rhythm of the year is set by latitude (41.7°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.