Johnson, Nebraska Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Johnson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain75%0.54″82°67°—
- SundayJul 5Overcast11%—88°66°+6°
- MondayJul 6Clear——88°67°0°
- TuesdayJul 7Overcast——89°67°+1°
- WednesdayJul 8Overcast23%—99°68°+10°
- ThursdayJul 9Light Showers49%0.05″89°70°-10°
- FridayJul 10Light Drizzle19%—89°66°0°
AQI 27 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.6 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 35. Overcast through the UV peak window (cloud cover ~99%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 6.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 6.6 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.75
- Wind
- breezy
- Recent rain
- 1h in last 6h
- Pattern
- background
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
- 11:20 PM
- Moonset
- 10:30 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Johnson at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 68378
16-Day Forecast — Johnson
- Sat82°67°75%
- Sun88°66°11%
- Mon88°67°2%
- Tue89°67°1%
- Wed99°68°23%
- Thu89°70°49%
- Fri89°66°19%
- Sat88°69°8%
- Sun80°61°5%
- Mon85°58°4%
- Tue91°63°3%
- Wed87°66°17%
- Thu87°67°11%
- Fri85°66°10%
- Sat87°67°10%
- Sun95°69°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Johnson
SPC has placed Johnson in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 Johnson
- 68378