Jansen, Colorado Weather
Heat hardens the dust. Day 77 of spring. Read this microseason across nine climate regions →
Jansen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast11%—86°49°—
- FridayJun 5Overcast——89°57°+3°
- SaturdayJun 6Drizzle24%—85°60°-4°
- SundayJun 7Overcast——88°59°+3°
- MondayJun 8Overcast——90°62°+2°
- TuesdayJun 9Overcast10%—90°63°0°
- WednesdayJun 10Light Drizzle—0.02″88°62°-2°
Ozone at AQI 70 — peak already passed at 1 PM under partly cloudy skies. AQI up 24 in the last 6 hours — air quality is degrading. Levels should ease through evening.
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 70 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 70
- UV peak
- 2.8 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 70
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
- 5:19 AM
- Moonset
- 3:11 PM
- In sign
- ♒︎ Aquarius
Heat hardens the dust
Jansen at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: March 30 (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
Peak growing season
As of June 4, 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 has placed Jansen in the General Thunderstorms category for severe thunderstorms today.
- 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.