Culbertson, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Culbertson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy25%—84°58°—
- SundayJul 5Light Drizzle16%—91°65°+7°
- MondayJul 6Overcast16%—86°68°-5°
- TuesdayJul 7Showers54%0.74″71°60°-15°
- WednesdayJul 8Overcast51%—83°56°+12°
- ThursdayJul 9Overcast23%—90°66°+7°
- FridayJul 10Clear23%—82°62°-8°
AQI 46 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline). PM2.5 at 7.6 µg/m³ (AQI 42) with a 0.92 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 7.6 µg/m³ (AQI 42) with a 0.92 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:06 PM
- Moonset
- 9:57 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Culbertson at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: June 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59218
15-Day Forecast — Culbertson
- Sat85°58°25%
- Sun91°65°16%
- Mon86°68°16%
- Tue71°60°54%
- Wed83°56°51%
- Thu90°66°23%
- Fri82°62°23%
- Sat88°59°9%
- Sun85°70°11%
- Mon81°62°8%
- Tue94°61°15%
- Wed100°68°12%
- Thu91°73°13%
- Fri92°64°6%
- Sat105°73°10%
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 — Culbertson
SPC includes Culbertson in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Culbertson
- 59218