Otis, Colorado Weather
Summer heat breaks with monsoon. Day 43 of summer. Read this microseason across nine climate regions →
Otis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Overcast——99°64°—
- MondayAug 3Overcast36%—106°71°+7°
- TuesdayAug 4Overcast36%—83°59°-23°
- WednesdayAug 5Overcast12%—86°61°+3°
- ThursdayAug 6Light Drizzle——93°61°+7°
- FridayAug 7Clear——100°65°+7°
- SaturdayAug 8Overcast——105°76°+5°
AQI 50 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.3 µg/m³, PM10 at 8.5 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 34 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 21.
- Present
- AQI 34
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 21
PM × Wind × Precip
PM2.5 at 6.3 µg/m³, PM10 at 8.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.74
- 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).
Red sky at night, sailor's delight.
- Moonrise
- 9:36 PM
- Moonset
- 10:00 AM
- In sign
- ♓︎ Pisces
Summer heat breaks with monsoon
Otis at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP code: 80743
16-Day Forecast — Otis
- Sun99°64°0%
- Mon106°71°36%
- Tue83°59°36%
- Wed86°61°12%
- Thu93°61°9%
- Fri100°65°8%
- Sat105°76°7%
- Sun102°71°13%
- Mon102°75°18%
- Tue100°72°29%
- Wed99°71°41%
- Thu98°68°41%
- Fri97°68°44%
- Sat90°62°48%
- Sun100°70°37%
- Mon99°66°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of August 2, 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 — Otis
SPC includes Otis in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- 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.
Sun & seasons in Otis
Otis sits in Washington County, where the year’s longest day runs 15h 2m of daylight and its shortest just 9h 19m — a swing of +5h 43m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Denver, the state’s largest city, lies about 105 miles to the WSW. The nearest town Otis tracks is Greeley, roughly 97 miles to the WNW.
ZIP codes in Otis
- 80743