Columbus, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Columbus weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——92°51°—
- SundayJul 5Overcast18%—94°62°+2°
- MondayJul 6Overcast42%—83°63°-11°
- TuesdayJul 7Light Drizzle42%0.01″89°61°+6°
- WednesdayJul 8Heavy Drizzle27%0.11″93°58°+4°
- ThursdayJul 9Light Drizzle27%—90°59°-3°
- FridayJul 10Clear——91°57°+1°
AQI 45 (Good), driven by Ozone. AQI up 20 in the last 6 hours — air quality is degrading. Ozone at AQI 48 — 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 48 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 48
- UV peak
- 1.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 48
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
- 11:40 PM
- Moonset
- 11:31 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Columbus at a glance
- Today vs. normal: 26°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: 59019
16-Day Forecast — Columbus
- Sat92°51°9%
- Sun94°60°18%
- Mon83°63°42%
- Tue89°61°42%
- Wed93°58°27%
- Thu90°59°27%
- Fri91°57°5%
- Sat103°61°5%
- Sun110°70°5%
- Mon106°71°9%
- Tue107°73°20%
- Wed110°71°34%
- Thu109°71°35%
- Fri105°64°14%
- Sat103°69°13%
- Sun99°68°22%
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 — Columbus
SPC has placed Columbus 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 Columbus
- 59019