Williamstown, Kansas Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Williamstown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——89°63°—
- MondayJul 6Clear——91°69°+2°
- TuesdayJul 7Overcast——89°68°-2°
- WednesdayJul 8Overcast13%—94°69°+5°
- ThursdayJul 9Drizzle44%—94°72°0°
- FridayJul 10Light Drizzle41%—91°71°-3°
- SaturdayJul 11Light Showers13%0.28″75°67°-16°
AQI 38 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (gradual decline). PM2.5 at 9.4 µg/m³ (AQI 52) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 9.4 µg/m³ (AQI 52) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- 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
- 11:39 PM
- Moonset
- 11:35 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Williamstown at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Williamstown
- Sun89°63°3%
- Mon91°69°2%
- Tue89°68°1%
- Wed94°69°13%
- Thu94°72°44%
- Fri91°71°41%
- Sat75°67°13%
- Sun84°64°5%
- Mon86°64°2%
- Tue90°65°3%
- Wed93°69°7%
- Thu98°75°11%
- Fri100°80°14%
- Sat99°73°13%
- Sun99°78°23%
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 — Williamstown
SPC has placed Williamstown in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Williamstown
- 66073