Evanston, Wyoming Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Evanston weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——87°54°—
- MondayJul 6Heavy Drizzle10%0.07″86°62°-1°
- TuesdayJul 7Light Drizzle18%—87°53°+1°
- WednesdayJul 8Drizzle17%—87°54°0°
- ThursdayJul 9Overcast——87°50°0°
- FridayJul 10Clear——91°50°+4°
- SaturdayJul 11Clear——94°52°+3°
AQI 55 (Moderate), driven by Ozone. AQI down 22 over the last 6 hours — air quality is improving sharply. Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~78%) — 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 34. Overcast through the UV peak window (cloud cover ~78%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 4.5 µg/m³ (AQI 25), ratio 0.56 with 6 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.56
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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
- 11:44 PM
- Moonset
- 11:39 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Evanston at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: April 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 82930
15-Day Forecast — Evanston
- Sun87°54°1%
- Mon86°62°10%
- Tue87°53°18%
- Wed87°54°17%
- Thu87°50°2%
- Fri91°50°1%
- Sat94°52°2%
- Sun99°58°4%
- Mon94°58°12%
- Tue101°61°17%
- Wed99°61°19%
- Thu100°61°23%
- Fri99°58°22%
- Sat97°61°23%
- Sun99°63°16%
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 — Evanston
SPC includes Evanston in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 Evanston
- 82930