Lewiston, Nebraska Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Lewiston weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——88°64°—
- MondayJul 6Clear——90°66°+2°
- TuesdayJul 7Overcast——91°67°+1°
- WednesdayJul 8Overcast42%—94°67°+3°
- ThursdayJul 9Light Showers47%0.08″85°69°-9°
- FridayJul 10Showers34%0.04″77°64°-8°
- SaturdayJul 11Partly Cloudy10%—89°61°+12°
AQI 33 (Good), driven by Ozone. Ozone at AQI 68 now. With UV 7.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 70 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 68 now. With UV 7.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 70 around 1 PM.
- Present
- AQI 68
- UV peak
- 7.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 70
PM × Wind × Precip
PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.82 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- Wind
- light
- 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
- 11:39 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Lewiston at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 68380
16-Day Forecast — Lewiston
- Sun88°64°2%
- Mon90°66°1%
- Tue91°67°1%
- Wed94°67°42%
- Thu85°69°47%
- Fri77°64°34%
- Sat89°61°10%
- Sun100°69°5%
- Mon89°69°3%
- Tue96°64°3%
- Wed90°67°6%
- Thu90°65°14%
- Fri91°67°26%
- Sat96°68°16%
- Sun98°70°24%
- Mon100°70°29%
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 — Lewiston
SPC includes Lewiston 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 Lewiston
- 68380