Newcastle, Wyoming Weather
Wind builds through canyons. Day 16 of summer. Read this microseason across nine climate regions →
Newcastle weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Clear——99°66°—
- MondayJul 6Light Rain10%0.07″95°67°-4°
- TuesdayJul 7Heavy Showers52%0.56″87°65°-8°
- WednesdayJul 8Showers52%0.13″90°62°+3°
- ThursdayJul 9Thunderstorm56%—88°62°-2°
- FridayJul 10Overcast16%—94°63°+6°
- SaturdayJul 11Clear——102°71°+8°
AQI 68 (Moderate), driven by Ozone. AQI down 7 over the last 6 hours (gradual decline). Ozone at AQI 50. Overcast through the UV peak window (cloud cover ~89%) — afternoon ozone should stay flat.
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 50. Overcast through the UV peak window (cloud cover ~89%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:38 PM
- Moonset
- 12:21 PM
- In sign
- ♓︎ Pisces
Wind builds through canyons
Newcastle at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: May 9 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 82701
16-Day Forecast — Newcastle
- Sun99°66°0%
- Mon95°67°10%
- Tue87°65°52%
- Wed90°62°52%
- Thu88°62°56%
- Fri94°63°16%
- Sat102°71°3%
- Sun105°75°1%
- Mon101°75°6%
- Tue97°76°24%
- Wed101°73°29%
- Thu97°74°31%
- Fri97°70°32%
- Sat102°71°30%
- Sun99°77°27%
- Mon92°65°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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 — Newcastle
SPC has placed Newcastle in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3MRGLMarginal Risk
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 Newcastle
- 82701