Williston, North Dakota Weather
Great rains sometimes fall. Day 43 of summer. Read this microseason across nine climate regions →
Williston weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Overcast——92°70°—
- MondayAug 3Overcast12%—72°59°-20°
- TuesdayAug 4Overcast10%—77°50°+5°
- WednesdayAug 5Overcast——85°56°+8°
- ThursdayAug 6Overcast——93°63°+8°
- FridayAug 7Overcast——99°65°+6°
- SaturdayAug 8Overcast——88°62°-11°
AQI 54 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.1 µg/m³, PM10 at 8.3 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 33 now. With UV 2.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10.
- Present
- AQI 33
- UV peak
- 2.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 8.1 µg/m³, PM10 at 8.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.98
- 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).
Red sky at night, sailor's delight.
- Moonrise
- 10:41 PM
- Moonset
- 11:04 AM
- In sign
- ♓︎ Pisces
Great rains sometimes fall
Williston at a glance
- Today vs. normal: 32°F above the seasonal normal for this latitude
- Last frost: June 4 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP code: 58801
16-Day Forecast — Williston
- Sun92°70°2%
- Mon72°59°12%
- Tue77°50°10%
- Wed85°56°4%
- Thu93°63°4%
- Fri99°65°2%
- Sat88°62°2%
- Sun85°58°15%
- Mon83°63°23%
- Tue83°61°27%
- Wed84°58°27%
- Thu73°63°17%
- Fri64°60°17%
- Sat82°57°14%
- Sun85°62°16%
- Mon92°66°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of August 2, 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 — Williston
SPC includes Williston in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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.
Sun & seasons in Williston
Williston sits in Williams County, where the year’s longest day runs 16h 4m of daylight and its shortest just 8h 20m — a swing of +7h 44m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Fargo, the state’s largest city, lies about 330 miles to the ESE. The nearest town Williston tracks is Hillsboro, roughly 310 miles to the E.
ZIP codes in Williston
- 58801
- 58802
- 58803