Weather StoryAlmanac, microseasons, and the day's weather story.

Unionville, Virginia Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Unionville weather forecast — hour by hour, 7-day outlook, NOAA radar

Unionville, VA
Saturday, July 4 at 8:50 PM
73
°
Rain
Feels like
77°
Humidity
89%
Wind
11 mph
Sunrise
1:53 AM
Sunset
4:38 PM
Unionville, VA
Hour by hour · 24h
24-Hour ForecastUnionville, VA: 24-hour forecast. Temperatures range from 69 to 99 degrees Fahrenheit with a 60% chance of precipitation at 8 PM.
L 69°H 99°
Unionville, VA
7-day forecast
  1. Today
    Jul 4
    Heavy Showers
    60%
    0.76″
    101°72°
  2. Sunday
    Jul 5
    Overcast
    45%
    99°69°-2°
  3. Monday
    Jul 6
    Heavy Drizzle
    70%
    90°70°-9°
  4. Tuesday
    Jul 7
    Light Showers
    70%
    81°67°-9°
  5. Wednesday
    Jul 8
    Heavy Drizzle
    33%
    0.02″
    80°68°-1°
  6. Thursday
    Jul 9
    Overcast
    16%
    97°68°+17°
  7. Friday
    Jul 10
    Drizzle
    41%
    0.09″
    100°69°+3°
Unionville, VA
Anemometer · 24h winds · from true
NESW
From · True
WSW
255° · veering 75°
Direction
WSW
255°
Sustained
11
mph
Gust
27
mph
Peak 24h
27
avg 4
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 4 · pk 27
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 3019SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 75° from the wsw.
Unionville, VA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
998.4
+2.7 mb in 3h · rising rapidly · 29.48 inHg
Now
998.4
mb
3h
+2.7
mb
12h
-0.3
mb
24h
+0.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 995998
9909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW998.1994.7997.4
−24h−18h−12h−6hnow
The low is filling — pressure climbing out of storm territory.
Unionville, VA
Air quality
51
AQI
Moderate
-2 in 6h

AQI 51 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.9 µg/m³, PM10 to 9.3 µg/m³.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
8.9μg/m³
PM 10Good
9μg/m³
NO₂Good
3μg/m³
OzoneModerate
63μg/m³
UV IndexLow
0.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 30. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

Present
AQI 30
UV peak
0.1 at 1 PM
Sky at peak
overcast
Projected peak
AQI 4

PM × Wind × Precip

PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.9 µg/m³, PM10 to 9.3 µg/m³.

PM2.5/PM10
0.96
Wind
breezy
Recent rain
2h in last 6h
Pattern
washed out
Unionville, VA
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
10.6mi
UNLIMITED
111 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
00:50 UTC · Unionville, VA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
00:50 UTC · Unionville, VA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Unionville, VA
Satellite · infrared · animated
Unionville, VA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Unionville, VA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:23 AM
Sunrise
1:53 AM
Daylight
14h 45m
Sunset
4:38 PM
Civil dusk
9:11 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Unionville, VA
The moon
Waning Gibbous
77% illuminated
Moonrise
11:28 PM
Moonset
11:22 AM
In sign
♓︎ Pisces
Unionville, VA
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Unionville at a glance

  • Today vs. normal: 73°F — typical for the season
  • Last frost: April 6 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 22567

16-Day Forecast — Unionville

  1. Sat101°72°60%
  2. Sun99°69°45%
  3. Mon90°70°70%
  4. Tue81°67°70%
  5. Wed80°68°33%
  6. Thu97°68°16%
  7. Fri100°69°41%
  8. Sat78°69°33%
  9. Sun81°65°29%
  10. Mon86°60°15%
  11. Tue92°60°15%
  12. Wed92°63°36%
  13. Thu92°64°33%
  14. Fri91°66°35%
  15. Sat93°68°41%
  16. Sun93°66°45%

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 — Unionville

SPC has placed Unionville in the Enhanced Risk category for severe thunderstorms today.

  • TODAYENHEnhanced Risk
  • TOMORROWSLGTSlight Risk
  • DAY 3MRGLMarginal Risk

Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.

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 Unionville

  • 22567

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.