Helena Valley Northwest, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Helena Valley Northwest weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——85°55°—
- SundayJul 5Overcast15%—86°57°+1°
- MondayJul 6Heavy Showers55%0.37″76°57°-10°
- TuesdayJul 7Light Drizzle55%—85°53°+9°
- WednesdayJul 8Overcast20%—90°56°+5°
- ThursdayJul 9Mostly Clear17%—81°55°-9°
- FridayJul 10Clear——86°50°+5°
AQI 36 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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
- 11:35 PM
- Moonset
- 10:30 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Helena Valley Northwest at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: May 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Helena Valley Northwest
- Sat85°55°3%
- Sun86°57°15%
- Mon76°57°55%
- Tue85°53°55%
- Wed90°56°20%
- Thu81°55°17%
- Fri86°50°5%
- Sat94°53°4%
- Sun81°55°7%
- Mon90°50°11%
- Tue100°56°13%
- Wed91°65°18%
- Thu97°62°19%
- Fri99°59°17%
- Sat99°62°21%
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 — Helena Valley Northwest
SPC includes Helena Valley Northwest 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.
ZIP codes in Helena Valley Northwest
- 59602