Alton, Utah Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Alton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Clear——82°45°—
- SundayJul 5Overcast——83°54°+1°
- MondayJul 6Overcast——84°60°+1°
- TuesdayJul 7Clear——87°59°+3°
- WednesdayJul 8Clear——87°59°0°
- ThursdayJul 9Clear——90°62°+3°
- FridayJul 10Partly Cloudy——91°60°+1°
AQI 67 (Moderate), driven by Ozone. AQI down 9 over the last 6 hours (gradual decline). Ozone at AQI 48. Overcast through the UV peak window (cloud cover ~93%) — 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 48. Overcast through the UV peak window (cloud cover ~93%) — afternoon ozone should stay flat.
- Present
- AQI 48
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
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
- 11:48 PM
- Moonset
- 11:47 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Alton at a glance
- Today vs. normal: 7°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: 84710
16-Day Forecast — Alton
- Sat82°45°0%
- Sun83°54°3%
- Mon84°60°1%
- Tue87°59°1%
- Wed87°59°1%
- Thu90°62°1%
- Fri91°60°1%
- Sat96°63°3%
- Sun95°65°6%
- Mon97°66°11%
- Tue96°68°14%
- Wed98°65°19%
- Thu97°64°30%
- Fri92°65°36%
- Sat87°65°39%
- Sun91°65°43%
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 — Alton
SPC includes Alton 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 Alton
- 84710