Lewis, Colorado Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Lewis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——89°60°—
- MondayJul 6Overcast——87°63°-2°
- TuesdayJul 7Overcast——91°59°+4°
- WednesdayJul 8Overcast——92°62°+1°
- ThursdayJul 9Overcast——92°58°0°
- FridayJul 10Overcast——94°60°+2°
- SaturdayJul 11Overcast——99°60°+5°
AQI 150 (Unhealthy for Sensitive Groups), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 94.8 µg/m³, PM10 at 96.2 µg/m³ — typical background levels with no transport signature.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 94.8 µg/m³, PM10 at 96.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.99
- 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
- 11:32 PM
- Moonset
- 11:31 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Lewis at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: April 1 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 81327
15-Day Forecast — Lewis
- Sun89°60°0%
- Mon87°63°2%
- Tue91°59°2%
- Wed92°62°1%
- Thu92°58°2%
- Fri94°60°1%
- Sat99°60°6%
- Sun97°63°19%
- Mon98°62°16%
- Tue97°64°10%
- Wed100°66°17%
- Thu97°63°26%
- Fri96°62°31%
- Sat98°63°41%
- Sun96°64°42%
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 — Lewis
SPC includes Lewis 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 Lewis
- 81327