Fort Carson, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Fort Carson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle10%0.01″91°61°—
- MondayJul 6Overcast——93°59°+2°
- TuesdayJul 7Heavy Rain62%0.48″95°67°+2°
- WednesdayJul 8Light Showers61%0.14″94°67°-1°
- ThursdayJul 9Rain58%0.29″89°64°-5°
- FridayJul 10Overcast35%—92°64°+3°
- SaturdayJul 11Partly Cloudy——96°70°+4°
AQI 81 (Moderate), driven by PM2.5. AQI down 28 over the last 6 hours — air quality is improving sharply. PM2.5 at 9.2 µg/m³, PM10 at 13.0 µg/m³ — typical background levels with no transport signature.
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 49. Overcast through the UV peak window (cloud cover ~82%) — afternoon ozone should stay flat.
- Present
- AQI 49
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 9.2 µg/m³, PM10 at 13.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.71
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:17 PM
- Moonset
- 11:14 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Fort Carson at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: April 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Fort Carson
- Sun91°59°10%
- Mon93°59°7%
- Tue95°67°62%
- Wed94°67°61%
- Thu89°64°58%
- Fri92°64°35%
- Sat96°70°9%
- Sun92°68°2%
- Mon99°68°5%
- Tue102°75°15%
- Wed101°76°29%
- Thu98°73°42%
- Fri96°70°42%
- Sat96°68°48%
- Sun96°71°54%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Fort Carson
SPC includes Fort Carson in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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.
Microseason · July 1–5
Monsoon storms drench the south
Monsoon established in southern Mountain West (New Mexico, southern Utah, Arizona north); afternoon downpours and lightning common.
Day 186 of 365 · Wedge 37 of 72
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
The year in Fort Carson tops out in July (~72°F) and dips lowest in December (~32°F), with July wettest at 3.1 inches and December driest at 0.2 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 32° | 0.3″ | 1 |
| February | 33° | 0.3″ | 1 |
| March | 41° | 0.8″ | 2 |
| April | 48° | 1.4″ | 4 |
| May | 57° | 2.0″ | 5 |
| June | 67° | 2.3″ | 4 |
| July | 72° | 3.1″ | 6 |
| August | 70° | 3.0″ | 6 |
| September | 63° | 1.4″ | 3 |
| October | 51° | 0.8″ | 2 |
| November | 40° | 0.4″ | 1 |
| December | 32° | 0.2″ | 1 |
Regional context
Fort Carson's climate, from NOAA NCEI 1991-2020 station normals, pairs 32°F Januarys with 72°F Julys — a 41°F swing. About 15.9 inches of precipitation falls over roughly 37 days a year.
Fort Carson's rain peaks in summer: July brings 3.1 inches over 6.4 thunderstorm-fed days, while December sees just 0.2 inches across 0.7 days under cooler, drier air. It is a warm-season-wet pattern Fort Carson shares with places like Rock Creek Park, CO, Security-Widefield, CO and Stratmoor, CO.
By mid-April the frosts ease in Fort Carson, opening the season for peas, lettuce, spinach, and radishes. Hold Fort Carson's tender crops — tomatoes, peppers, basil — until 10-14 days past Fort Carson's last frost. Around mid-November, freezing nights resume in Fort Carson and tender crops must come in. In Fort Carson, low spots run 4-7°F colder than nearby slopes, nudging Fort Carson's frost dates a week.
Similar climates: Rock Creek Park, CO, Security-Widefield, CO, Stratmoor, CO, Fountain, CO, Colorado Springs, CO.
Frequently asked
- When does it freeze in Fort Carson?
- In Fort Carson, expect the last spring frost near mid-April; Fort Carson's first autumn frost comes around mid-November.
- What is the rainy season in Fort Carson?
- Rainfall in Fort Carson peaks in July near 3.1 inches, out of about 16 inches annually.
- What is the warmest month in Fort Carson?
- Fort Carson peaks in July, when the mean runs near 72°F.
- What is the coldest month in Fort Carson?
- December is Fort Carson's coldest month, averaging about 32°F.
- When can I start a vegetable garden in Fort Carson?
- In Fort Carson, sow peas and hardy greens around mid-April; Fort Carson's tomatoes and peppers wait two weeks more.
- How many rainy days does Fort Carson get?
- Expect roughly 37 wet days a year in Fort Carson.
- What hardiness zone is Fort Carson?
- With December around 32°F, Fort Carson's zone reflects that minimum — the USDA ZIP map confirms Fort Carson's band.
- What is the 10-day forecast for Fort Carson?
- Fort Carson's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Fort Carson?
- See this week's day-by-day rain chances for Fort Carson in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Fort Carson?
- Current conditions for Fort Carson and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Fort Carson forecast updated?
- The Fort Carson forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Fort Carson?
- Today's sunrise and sunset times for Fort Carson are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Fort Carson?
- The next few days in Fort Carson's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Fort Carson, Colorado, the hot desert climate runs from about 32°F in January to 72°F in July, a 40°F seasonal range.
Yearly precipitation in Fort Carson totals around 16 inches, spread over about 37 days of rain or snow.
From 38.7°N, Fort Carson sees a 40°F seasonal swing that governs Fort Carson's planting and frost windows.
ZIP codes in Fort Carson
- 80902
- 80913