Jansen, Colorado Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Jansen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——86°58°—
- SundayJul 5Overcast16%—89°60°+3°
- MondayJul 6Overcast19%—92°62°+3°
- TuesdayJul 7Drizzle60%0.03″93°62°+1°
- WednesdayJul 8Light Drizzle49%—94°64°+1°
- ThursdayJul 9Overcast57%—95°63°+1°
- FridayJul 10Overcast42%—89°64°-6°
AQI 116 (Unhealthy for Sensitive Groups), driven by PM2.5. AQI up 65 in the last 6 hours — air quality is degrading. PM2.5 at 8.8 µg/m³ (AQI 49), ratio 0.67 with 8 mph wind — characteristic of long-range haze transport rather than a local source.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 49 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 8 around 1 PM.
- Present
- AQI 49
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 8.8 µg/m³ (AQI 49), ratio 0.67 with 8 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.67
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:15 PM
- Moonset
- 11:14 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Jansen at a glance
- Today vs. normal: 73°F — typical for the season
- Last frost: March 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Jansen
- Sat86°58°6%
- Sun89°60°16%
- Mon92°62°19%
- Tue93°62°60%
- Wed94°64°49%
- Thu95°63°57%
- Fri89°64°42%
- Sat88°58°10%
- Sun90°59°4%
- Mon96°58°4%
- Tue97°60°11%
- Wed102°64°27%
- Thu104°68°29%
- Fri102°70°48%
- Sat102°67°52%
- Sun99°68°55%
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 — Jansen
SPC includes Jansen 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.
ZIP codes in Jansen
- 81082