Upper Arlington, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Upper Arlington weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast25%—93°72°—
- SundayJul 5Overcast33%—90°74°-3°
- MondayJul 6Thunderstorm67%—82°69°-8°
- TuesdayJul 7Overcast14%—80°66°-2°
- WednesdayJul 8Overcast——88°67°+8°
- ThursdayJul 9Thunderstorm35%—84°69°-4°
- FridayJul 10Thunderstorm61%—77°71°-7°
AQI 35 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline). Ozone at AQI 80 now. With UV 6.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 71 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 80 now. With UV 6.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 71 around 1 PM.
- Present
- AQI 80
- UV peak
- 6.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 71
PM × Wind × Precip
PM2.5 at 12.2 µg/m³ (AQI 57) with a 0.84 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.84
- 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
- 11:26 PM
- Moonset
- 10:37 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Upper Arlington at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Upper Arlington
- Sat93°72°25%
- Sun90°74°33%
- Mon82°69°67%
- Tue80°66°14%
- Wed88°67°7%
- Thu84°69°35%
- Fri77°71°61%
- Sat87°68°31%
- Sun75°65°14%
- Mon67°58°15%
- Tue78°62°13%
- Wed85°66°23%
- Thu86°69°27%
- Fri88°71°26%
- Sat88°70°45%
- Sun90°71°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Upper Arlington
SPC has placed Upper Arlington in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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.
Microseason · July 1–5
Cicadas claim the scorching afternoon
Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
In Upper Arlington, July runs warmest near 75°F and January coldest around 27°F, while May is the wettest month (4.2 inches) and October the driest (2.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 27° | 3.1″ | 18 |
| February | 30° | 2.9″ | 15 |
| March | 40° | 4.0″ | 18 |
| April | 52° | 4.1″ | 19 |
| May | 61° | 4.2″ | 18 |
| June | 70° | 4.0″ | 15 |
| July | 75° | 3.4″ | 16 |
| August | 74° | 3.2″ | 15 |
| September | 68° | 2.6″ | 13 |
| October | 56° | 2.6″ | 12 |
| November | 42° | 3.0″ | 15 |
| December | 32° | 3.7″ | 17 |
Regional context
Upper Arlington swings from 27°F in January to 75°F in July (48°F) per NOAA NCEI 1991-2020 normals; precipitation in Upper Arlington runs about 40.7 inches on roughly 190 measurable days.
Upper Arlington's precipitation spreads evenly: May peaks at 4.2 inches on 18.3 wet days, while October holds 2.6 inches over 11.9 — no month dominates Upper Arlington's rain calendar. That lines Upper Arlington up with places like Marble Cliff, OH, Grandview Heights, OH and Riverlea, OH, fed by overlapping storm tracks.
Upper Arlington reaches its last hard frost near mid-April; that is the cue for kale, peas, spinach, and parsnips. Heat-demanding starts go out a fortnight on in Upper Arlington, after the soil warms and cold snaps clear. The season ends by mid-November in Upper Arlington, once hard frosts set back in. Upper Arlington's low ground holds frost later into spring than Upper Arlington's benches, which run 3-5 days ahead.
Similar climates: Marble Cliff, OH, Grandview Heights, OH, Riverlea, OH, Hilliard, OH, Columbus, OH.
Frequently asked
- When does it freeze in Upper Arlington?
- Upper Arlington's last spring frost lands near mid-April, and in Upper Arlington the first fall frost follows around mid-November.
- What is the rainy season in Upper Arlington?
- Rainfall in Upper Arlington peaks in May near 4.2 inches, out of about 41 inches annually.
- What is the warmest month in Upper Arlington?
- Upper Arlington peaks in July, when the mean runs near 75°F.
- What is the coldest month in Upper Arlington?
- January is Upper Arlington's coldest month, averaging about 27°F.
- When can I start a vegetable garden in Upper Arlington?
- Hardy spring crops go in near mid-April in Upper Arlington; tender peppers and squash wait 10–14 days.
- How many rainy days does Upper Arlington get?
- Upper Arlington averages about 190 days with measurable rain or snow each year.
- What hardiness zone is Upper Arlington?
- Because Upper Arlington bottoms near 27°F in January, that winter low sets Upper Arlington's USDA zone — verify by ZIP.
- What is the 10-day forecast for Upper Arlington?
- Upper Arlington's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Upper Arlington?
- See this week's day-by-day rain chances for Upper Arlington in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Upper Arlington?
- Current conditions for Upper Arlington and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Upper Arlington forecast updated?
- The Upper Arlington forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Upper Arlington?
- Today's sunrise and sunset times for Upper Arlington are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Upper Arlington?
- The next few days in Upper Arlington's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The humid subtropical climate of Upper Arlington, Ohio carries typical Januarys near 27°F and Julys around 75°F — 48°F of seasonal travel.
Upper Arlington sees close to 41 inches of precipitation annually, falling across some 190 wet days.
Upper Arlington sits at 40.0°N; that 48°F seasonal swing frames planting windows and frost dates across Upper Arlington.
ZIP codes in Upper Arlington
- 43220
- 43221
- 43212