Gretna, Nebraska Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Gretna weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——88°68°—
- MondayJul 6Clear——89°69°+1°
- TuesdayJul 7Overcast——87°68°-2°
- WednesdayJul 8Overcast45%—93°68°+6°
- ThursdayJul 9Light Showers45%0.01″84°69°-9°
- FridayJul 10Light Drizzle25%0.08″70°61°-14°
- SaturdayJul 11Overcast——87°61°+17°
AQI 36 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 63 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 66 around 1 PM.
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 63 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 66 around 1 PM.
- Present
- AQI 63
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 66
PM × Wind × Precip
PM2.5 at 7.2 µg/m³ (AQI 40) with a 0.87 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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
- 11:44 PM
- Moonset
- 11:38 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Gretna at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 68028
16-Day Forecast — Gretna
- Sun88°68°7%
- Mon89°69°1%
- Tue87°68°1%
- Wed93°68°45%
- Thu84°69°45%
- Fri70°61°25%
- Sat87°61°7%
- Sun99°67°3%
- Mon84°65°2%
- Tue86°62°4%
- Wed84°65°4%
- Thu87°63°17%
- Fri89°66°35%
- Sat94°68°13%
- Sun95°69°17%
- Mon100°70°19%
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 — Gretna
SPC includes Gretna in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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 Gretna
- 68028
- 68138