Big Timber, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Big Timber weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——90°47°—
- SundayJul 5Overcast15%—93°60°+3°
- MondayJul 6Light Showers54%—81°60°-12°
- TuesdayJul 7Light Showers54%0.13″86°57°+5°
- WednesdayJul 8Drizzle38%—89°56°+3°
- ThursdayJul 9Light Drizzle38%—87°56°-2°
- FridayJul 10Clear——89°56°+2°
AQI 44 (Good), driven by Ozone. AQI up 20 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
- 1.6 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
- 11:43 PM
- Moonset
- 11:34 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Big Timber at a glance
- Today vs. normal: 24°F above the seasonal normal for this latitude
- Last frost: May 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59011
16-Day Forecast — Big Timber
- Sat90°47°0%
- Sun93°60°15%
- Mon81°60°54%
- Tue86°57°54%
- Wed89°56°38%
- Thu87°56°38%
- Fri89°56°4%
- Sat103°58°4%
- Sun105°65°7%
- Mon103°69°13%
- Tue106°69°28%
- Wed107°66°28%
- Thu105°66°26%
- Fri105°61°23%
- Sat102°63°19%
- Sun95°63°18%
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 — Big Timber
SPC has placed Big Timber 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 Big Timber
- 59011