Helmville, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Helmville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear——79°50°—
- SundayJul 5Overcast——78°57°-1°
- MondayJul 6Heavy Drizzle47%0.03″76°52°-2°
- TuesdayJul 7Light Drizzle47%—86°52°+10°
- WednesdayJul 8Light Drizzle17%—85°54°-1°
- ThursdayJul 9Overcast——81°48°-4°
- FridayJul 10Clear——88°50°+7°
AQI 43 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 41 now. With UV 0.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 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 41 now. With UV 0.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 around 1 PM.
- Present
- AQI 41
- UV peak
- 0.2 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 7
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
- 11:56 PM
- Moonset
- 11:46 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Helmville at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59843
16-Day Forecast — Helmville
- Sat79°50°1%
- Sun78°57°2%
- Mon76°52°47%
- Tue86°52°47%
- Wed85°54°17%
- Thu81°48°8%
- Fri88°50°2%
- Sat98°55°2%
- Sun94°58°4%
- Mon97°60°9%
- Tue101°59°13%
- Wed95°60°23%
- Thu92°53°23%
- Fri96°53°16%
- Sat95°58°21%
- Sun100°60°23%
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 — Helmville
SPC includes Helmville 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 Helmville
- 59843