Columbus, Ohio Weather
Dusk arrives one minute earlier each night. Day 43 of summer. Read this microseason across nine climate regions →
Columbus weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Light Rain61%0.09″81°69°—
- MondayAug 3Overcast——83°66°+2°
- TuesdayAug 4Overcast——86°61°+3°
- WednesdayAug 5Drizzle35%—89°71°+3°
- ThursdayAug 6Heavy Drizzle29%—91°70°+2°
- FridayAug 7Light Drizzle53%—87°70°-4°
- SaturdayAug 8Thunderstorm35%—89°70°+2°
AQI 31 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 38 now. With UV 4.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 17.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 38 now. With UV 4.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 17.
- Present
- AQI 38
- UV peak
- 4.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 17
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
- 10:15 PM
- Moonset
- 10:36 AM
- In sign
- ♓︎ Pisces
Dusk arrives one minute earlier each night
Columbus at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 43085, 43201, 43202, 43203, 43204, 43205, 43206, 43207 +23 more
16-Day Forecast — Columbus
- Sun81°69°61%
- Mon83°66°4%
- Tue86°61°4%
- Wed89°71°35%
- Thu91°70°29%
- Fri87°70°53%
- Sat89°70°35%
- Sun92°70°28%
- Mon94°76°31%
- Tue88°72°26%
- Wed91°69°26%
- Thu93°72°37%
- Fri94°75°32%
- Sat94°76°33%
- Sun89°72°23%
- Mon89°69°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Columbus
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 — Columbus
SPC includes Columbus in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- 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.
Sun & seasons in Columbus
Columbus sits in Franklin County, where the year’s longest day runs 15h 1m of daylight and its shortest just 9h 20m — a swing of +5h 41m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Cincinnati, the state’s largest city, lies about 100 miles to the SW. The nearest town Columbus tracks is Dayton, roughly 66 miles to the WSW.
Air quality in Columbus’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 45). See the full air-quality history for Columbus.
Microseason · August 1–5
Dusk arrives one minute earlier each night
Sunset slides back toward 8 PM; darkness creeps in, signaling summer's decline though heat persists.
Day 214 of 365 · Wedge 43 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
Columbus peaks at about 75°F in July and bottoms near 27°F in January; May brings the heaviest rain (4.2 inches) and October the least (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
Columbus swings from 27°F in January to 75°F in July (48°F) per NOAA NCEI 1991-2020 normals; precipitation in Columbus runs about 40.7 inches on roughly 190 measurable days.
Columbus'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 Columbus's rain calendar. That even rhythm groups Columbus with places like Grandview Heights, OH, Bexley, OH and Marble Cliff, OH.
Columbus 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 Columbus, after the soil warms and cold snaps clear. Frost returns to Columbus near mid-November, ending the tender-crop season. Columbus's low ground holds frost later into spring than Columbus's benches, which run 3-5 days ahead.
Similar climates: Grandview Heights, OH, Bexley, OH, Marble Cliff, OH, Upper Arlington, OH, Whitehall, OH.
Naturalist notes
Late April brings the return of chimney swifts to Columbus skies, their chattering calls marking the transition from spring to early summer.
Redbud trees typically bloom in early April, their purple-pink flowers appearing before the leaves unfurl.
Frequently asked
- When does it freeze in Columbus?
- In Columbus, expect the last spring frost near mid-April; Columbus's first autumn frost comes around mid-November.
- What is the rainy season in Columbus?
- May is the wettest month in Columbus, about 4.2 inches on average; the year totals roughly 41 inches.
- What is the warmest month in Columbus?
- Columbus peaks in July, when the mean runs near 75°F.
- What is the coldest month in Columbus?
- January is Columbus's coldest month, averaging about 27°F.
- When can I start a vegetable garden in Columbus?
- Hardy spring crops go in near mid-April in Columbus; tender peppers and squash wait 10–14 days.
- How many rainy days does Columbus get?
- Columbus averages about 190 days with measurable rain or snow each year.
- What hardiness zone is Columbus?
- Since January in Columbus averages 27°F, Columbus's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Columbus?
- Columbus'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 Columbus?
- See this week's day-by-day rain chances for Columbus in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Columbus?
- Current conditions for Columbus and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Columbus forecast updated?
- The Columbus forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Columbus?
- Today's sunrise and sunset times for Columbus 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 Columbus?
- The next few days in Columbus's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The humid subtropical climate of Columbus, Ohio carries typical Januarys near 27°F and Julys around 75°F — 48°F of seasonal travel.
Yearly precipitation in Columbus totals around 41 inches, spread over about 190 days of rain or snow.
Columbus sits at 40.0°N; that 48°F seasonal swing frames planting windows and frost dates across Columbus.
ZIP codes in Columbus
- 43109
- 43026
- 43054
- 43220
- 43221
- 43222
- 43223
- 43224
- 43081
- 43228
- 43227
- 43213
- 43212
- 43215
- 43214
- 43217
- 43219
- 43218
- 43002
- 43004
- 43068
- 43085
- 43240
- 43229
- 43235
- 43232
- 43231
- 43230
- 43119
- 43110
- 43017
- 43016
- 43137
- 43211
- 43210
- 43202
- 43203
- 43201
- 43206
- 43207
- 43204
- 43205
- 43209
- 43236
- 43251
- 43260
- 43266
- 43268
- 43270
- 43271
- 43272
- 43279
- 43287
- 43291