East Helena, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
East Helena weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——86°56°—
- SundayJul 5Overcast34%—87°58°+1°
- MondayJul 6Light Showers54%0.24″76°58°-11°
- TuesdayJul 7Light Rain54%0.06″84°54°+8°
- WednesdayJul 8Overcast28%—90°58°+6°
- ThursdayJul 9Clear17%—83°58°-7°
- FridayJul 10Clear——87°53°+4°
AQI 37 (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
- 11:34 PM
- Moonset
- 10:29 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
East Helena 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.
ZIP code: 59635
15-Day Forecast — East Helena
- Sat86°56°4%
- Sun87°58°34%
- Mon76°58°54%
- Tue84°54°54%
- Wed90°58°28%
- Thu83°58°17%
- Fri87°53°5%
- Sat95°57°4%
- Sun82°59°7%
- Mon90°53°11%
- Tue100°60°13%
- Wed93°68°18%
- Thu97°64°19%
- Fri99°63°17%
- Sat96°65°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 — East Helena
SPC includes East Helena 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 East Helena
- 59635