Hardin, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Hardin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——92°57°—
- SundayJul 5Overcast10%—97°61°+5°
- MondayJul 6Light Drizzle50%—88°65°-9°
- TuesdayJul 7Light Showers50%0.06″88°66°0°
- WednesdayJul 8Light Rain34%0.07″96°62°+8°
- ThursdayJul 9Light Drizzle34%—88°63°-8°
- FridayJul 10Clear——94°61°+6°
AQI 48 (Good), driven by Ozone. AQI up 14 over the last 6 hours (gradual rise). Ozone at AQI 43 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 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 43 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 43
- UV peak
- 0.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
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
- 11:24 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Hardin at a glance
- Today vs. normal: 21°F above the seasonal normal for this latitude
- Last frost: May 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59034
16-Day Forecast — Hardin
- Sat92°57°5%
- Sun97°61°10%
- Mon88°65°50%
- Tue88°66°50%
- Wed96°62°34%
- Thu88°63°34%
- Fri94°61°5%
- Sat105°65°2%
- Sun109°73°5%
- Mon106°75°8%
- Tue108°77°21%
- Wed107°77°33%
- Thu108°73°35%
- Fri104°68°35%
- Sat105°72°13%
- Sun101°73°24%
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 — Hardin
SPC has placed Hardin 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 Hardin
- 59034