Helena Valley West Central, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Helena Valley West Central weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——84°55°—
- SundayJul 5Overcast18%—85°56°+1°
- MondayJul 6Heavy Showers55%0.37″75°56°-10°
- TuesdayJul 7Light Drizzle55%—84°52°+9°
- WednesdayJul 8Overcast24%—89°55°+5°
- ThursdayJul 9Mostly Clear16%—80°54°-9°
- FridayJul 10Clear——85°49°+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 West Central at a glance
- Today vs. normal: 5°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 West Central
- Sat84°55°4%
- Sun85°56°18%
- Mon75°56°55%
- Tue84°52°55%
- Wed89°55°24%
- Thu80°54°16%
- Fri85°49°5%
- Sat93°52°4%
- Sun80°54°7%
- Mon89°49°11%
- Tue99°55°13%
- Wed90°64°18%
- Thu96°61°19%
- Fri98°58°17%
- Sat98°61°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 West Central
SPC includes Helena Valley West Central 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 West Central
- 59602