Junction City, Kansas Weather
Heat settles and the rain begins. Day 90 of spring. Read this microseason across nine climate regions →
Junction City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Thunderstorm——93°70°—
- ThursdayJun 18Overcast——82°63°-11°
- FridayJun 19Light Drizzle——82°59°0°
- SaturdayJun 20T-storm w/ Hvy Hail50%0.91″81°66°-1°
- SundayJun 21Heavy Showers80%0.61″75°60°-6°
- MondayJun 22Partly Cloudy19%—75°55°0°
- TuesdayJun 23Overcast10%—75°61°0°
AQI 33 (Good), driven by Ozone. AQI down 11 over the last 6 hours (gradual decline). Ozone at AQI 34 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 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 34 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 around 1 PM.
- Present
- AQI 34
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 15
PM × Wind × Precip
PM2.5 at 4.5 µg/m³, PM10 at 4.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- breezy
- 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).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:33 AM
- Moonset
- 11:03 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Junction City at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Junction City
- Wed93°70°1%
- Thu82°63°7%
- Fri82°59°9%
- Sat81°66°50%
- Sun75°60°80%
- Mon75°55°19%
- Tue75°61°10%
- Wed81°63°22%
- Thu90°69°25%
- Fri92°71°27%
- Sat85°68°26%
- Sun80°61°21%
- Mon83°62°36%
- Tue85°62°31%
- Wed95°70°48%
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 — Junction City
SPC has placed Junction City in the General Thunderstorms category for severe thunderstorms today.
- 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 Junction City
- 66441