Dorchester, Nebraska Weather
Lesser ripening, greater heat. Day 90 of spring. Read this microseason across nine climate regions →
Dorchester weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Overcast——82°66°—
- ThursdayJun 18Overcast11%—76°61°-6°
- FridayJun 19Heavy Drizzle13%—78°61°+2°
- SaturdayJun 20Heavy Showers80%2.7″76°60°-2°
- SundayJun 21Heavy Rain81%0.52″71°60°-5°
- MondayJun 22Overcast11%—74°56°+3°
- TuesdayJun 23Light Drizzle—0.01″71°57°-3°
AQI 34 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 32 now. With UV 4.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 20 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 32 now. With UV 4.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 20 around 1 PM.
- Present
- AQI 32
- UV peak
- 4.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 20
PM × Wind × Precip
PM2.5 at 5.0 µg/m³ (AQI 28), ratio 0.65 with 18 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.65
- Wind
- breezy
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:28 AM
- Moonset
- 11:09 PM
- In sign
- ♌︎ Leo
Lesser ripening, greater heat
Dorchester at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Dorchester
- Wed81°66°1%
- Thu76°61°11%
- Fri78°61°13%
- Sat76°60°80%
- Sun71°60°81%
- Mon74°56°11%
- Tue71°57°9%
- Wed82°57°18%
- Thu82°63°26%
- Fri78°66°25%
- Sat82°67°22%
- Sun76°64°31%
- Mon76°57°30%
- Tue78°59°37%
- Wed72°53°32%
- Thu78°55°28%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, 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 — Dorchester
SPC has placed Dorchester in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- 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 Dorchester
- 68343