Harlowton, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Harlowton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——86°47°—
- SundayJul 5Light Drizzle20%0.03″90°57°+4°
- MondayJul 6Drizzle54%—77°56°-13°
- TuesdayJul 7Drizzle54%—82°58°+5°
- WednesdayJul 8Light Drizzle40%—92°55°+10°
- ThursdayJul 9Light Drizzle40%—78°58°-14°
- FridayJul 10Clear——82°53°+4°
AQI 43 (Good), driven by Ozone. AQI up 22 in the last 6 hours — air quality is degrading. Ozone at AQI 51 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 51 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 51
- UV peak
- 3.3 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 51
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
- 11:25 PM
- Moonset
- 10:21 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Harlowton at a glance
- Today vs. normal: 21°F above the seasonal normal for this latitude
- Last frost: May 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59036
16-Day Forecast — Harlowton
- Sat86°47°2%
- Sun90°57°20%
- Mon77°56°54%
- Tue82°58°54%
- Wed92°55°40%
- Thu78°58°40%
- Fri82°53°6%
- Sat95°55°4%
- Sun101°67°5%
- Mon101°73°14%
- Tue102°74°23%
- Wed99°67°24%
- Thu85°57°23%
- Fri87°57°13%
- Sat91°58°13%
- Sun96°61°18%
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 — Harlowton
SPC has placed Harlowton 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 Harlowton
- 59036