Johnstown, Nebraska Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Johnstown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle34%0.01″87°61°—
- SundayJul 5Clear——92°62°+5°
- MondayJul 6Overcast12%—94°66°+2°
- TuesdayJul 7Heavy Drizzle40%—95°72°+1°
- WednesdayJul 8Overcast40%—81°67°-14°
- ThursdayJul 9Heavy Drizzle22%—85°64°+4°
- FridayJul 10Overcast22%—88°65°+3°
AQI 83 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 19.0 µg/m³, PM10 at 24.6 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 43 now. With UV 0.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 43
- UV peak
- 0.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 19.0 µg/m³, PM10 at 24.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.77
- Wind
- light
- Recent rain
- 0h 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
- 12:00 AM
- Moonset
- 11:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Johnstown at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: May 1 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 69214
16-Day Forecast — Johnstown
- Sat87°61°34%
- Sun92°62°7%
- Mon94°66°12%
- Tue95°72°40%
- Wed81°67°40%
- Thu85°64°22%
- Fri88°65°22%
- Sat84°61°12%
- Sun92°66°6%
- Mon97°69°6%
- Tue100°71°6%
- Wed107°73°11%
- Thu114°75°12%
- Fri91°75°17%
- Sat105°70°10%
- Sun83°67°15%
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 — Johnstown
SPC has placed Johnstown in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- 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 Johnstown
- 69214