Acton, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Acton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——91°54°—
- SundayJul 5Overcast——93°60°+2°
- MondayJul 6Drizzle53%—83°64°-10°
- TuesdayJul 7Light Rain53%0.11″82°62°-1°
- WednesdayJul 8Light Drizzle34%—93°58°+11°
- ThursdayJul 9Light Drizzle34%—84°61°-9°
- FridayJul 10Clear——85°58°+1°
AQI 37 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 49 now. With UV 8.9 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 41 around 1 PM.
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 49 now. With UV 8.9 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 41 around 1 PM.
- Present
- AQI 49
- UV peak
- 8.9 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 41
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
- 11:20 PM
- Moonset
- 10:16 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Acton at a glance
- Today vs. normal: 22°F above the seasonal normal for this latitude
- Last frost: May 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59002
16-Day Forecast — Acton
- Sat91°54°3%
- Sun93°60°9%
- Mon83°64°53%
- Tue82°62°53%
- Wed93°58°34%
- Thu84°61°34%
- Fri85°58°9%
- Sat98°59°4%
- Sun106°72°4%
- Mon107°76°9%
- Tue107°79°21%
- Wed107°76°24%
- Thu91°62°26%
- Fri88°62°12%
- Sat92°61°13%
- Sun97°65°18%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Acton
SPC has placed Acton in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Acton
- 59002