Denison, Texas Weather
Heat settles and the rain begins. Day 90 of spring. Read this microseason across nine climate regions →
Denison weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Thunderstorm——88°73°—
- ThursdayJun 18Thunderstorm36%—92°73°+4°
- FridayJun 19T-storm w/ Hail54%—82°69°-10°
- SaturdayJun 20T-storm w/ Hail41%—93°71°+11°
- SundayJun 21Thunderstorm13%—96°77°+3°
- MondayJun 22Showers43%0.08″80°69°-16°
- TuesdayJun 23Thunderstorm40%0.12″84°69°+4°
AQI 28 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline). PM2.5 at 9.2 µg/m³, PM10 at 9.5 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
PM × Wind × Precip
PM2.5 at 9.2 µg/m³, PM10 at 9.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.97
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:47 AM
- Moonset
- 10:44 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Denison at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: March 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 — Denison
- Wed88°73°1%
- Thu92°73°36%
- Fri82°69°54%
- Sat93°71°41%
- Sun96°77°13%
- Mon80°69°43%
- Tue84°69°40%
- Wed87°68°28%
- Thu90°69°10%
- Fri91°73°7%
- Sat92°73°6%
- Sun83°67°6%
- Mon92°70°19%
- Tue92°69°32%
- Wed90°73°26%
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 — Denison
SPC has placed Denison in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 Denison
- 75020