Junction, Utah Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Junction weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Clear——91°51°—
- SundayJul 5Overcast——90°64°-1°
- MondayJul 6Light Drizzle11%—87°64°-3°
- TuesdayJul 7Clear——93°60°+6°
- WednesdayJul 8Clear——93°62°0°
- ThursdayJul 9Clear——95°61°+2°
- FridayJul 10Clear——96°60°+1°
AQI 98 (Moderate), driven by Ozone. AQI up 38 in the last 6 hours — air quality is degrading. Ozone at AQI 98. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
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 98. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 98
- UV peak
- 0.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 10.0 µg/m³ (AQI 53) with a 0.75 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.75
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:47 PM
- Moonset
- 11:46 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Junction at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: April 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 84740
16-Day Forecast — Junction
- Sat91°51°0%
- Sun90°64°2%
- Mon87°64°11%
- Tue93°60°6%
- Wed93°62°1%
- Thu95°61°1%
- Fri96°60°3%
- Sat100°59°8%
- Sun102°63°12%
- Mon101°68°24%
- Tue103°67°31%
- Wed103°69°20%
- Thu103°64°36%
- Fri100°66°35%
- Sat95°65°41%
- Sun92°68°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 — Junction
SPC includes Junction in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- 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 Junction
- 84740
- 84743