Amherst, Ohio Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Amherst weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast36%—87°72°—
- SundayJul 5Heavy Rain28%0.70″80°72°-7°
- MondayJul 6Light Drizzle27%—75°69°-5°
- TuesdayJul 7Light Drizzle12%—76°70°+1°
- WednesdayJul 8Light Drizzle——83°64°+7°
- ThursdayJul 9Thunderstorm36%—82°67°-1°
- FridayJul 10Light Drizzle36%—78°71°-4°
AQI 46 (Good), driven by Ozone. AQI down 16 over the last 6 hours — air quality is improving sharply. Ozone at AQI 50 now. With UV 4.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 27 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 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 50 now. With UV 4.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 27 around 1 PM.
- Present
- AQI 50
- UV peak
- 4.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 27
PM × Wind × Precip
PM2.5 at 7.0 µg/m³ (AQI 39) with a 0.95 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- 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
- 11:25 PM
- Moonset
- 10:31 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Amherst at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 44001
16-Day Forecast — Amherst
- Sat87°72°36%
- Sun80°72°28%
- Mon75°69°27%
- Tue76°70°12%
- Wed83°64°8%
- Thu82°67°36%
- Fri78°71°36%
- Sat80°68°30%
- Sun76°67°25%
- Mon66°62°17%
- Tue76°61°20%
- Wed84°65°24%
- Thu85°69°29%
- Fri83°72°26%
- Sat82°69°24%
- Sun83°67°23%
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 — Amherst
SPC has placed Amherst 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 afternoon
Annual cicada buzz begins, peaking in the heat of the day.
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
The year in Amherst tops out in July (~76°F) and dips lowest in January (~28°F), with May wettest at 4.4 inches and January driest at 3.1 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 28° | 3.1″ | 23 |
| February | 30° | 3.2″ | 20 |
| March | 37° | 3.7″ | 20 |
| April | 48° | 3.8″ | 19 |
| May | 59° | 4.4″ | 18 |
| June | 70° | 4.1″ | 16 |
| July | 76° | 3.3″ | 15 |
| August | 74° | 3.3″ | 14 |
| September | 68° | 3.2″ | 14 |
| October | 56° | 3.1″ | 16 |
| November | 43° | 3.6″ | 20 |
| December | 32° | 3.7″ | 22 |
Regional context
Amherst swings from 28°F in January to 76°F in July (48°F) per NOAA NCEI 1991-2020 normals; precipitation in Amherst runs about 42.4 inches on roughly 215 measurable days.
Amherst's precipitation spreads evenly: May peaks at 4.4 inches on 17.8 wet days, while January holds 3.1 inches over 22.8 — no month dominates Amherst's rain calendar. That lines Amherst up with places like South Amherst, OH, Lorain, OH and Vermilion, OH, fed by overlapping storm tracks.
Amherst reaches its last hard frost near mid-April; that is the cue for kale, peas, spinach, and parsnips. Amherst's heat-lovers — tomatoes, peppers, squash — hold off until Amherst's frost risk clears, 10-14 days on. The season ends by mid-November in Amherst, once hard frosts set back in. Amherst's low ground holds frost later into spring than Amherst's benches, which run 3-5 days ahead.
Similar climates: South Amherst, OH, Lorain, OH, Vermilion, OH, Elyria, OH, Oberlin, OH.
Frequently asked
- When does it freeze in Amherst?
- Frost typically leaves Amherst by mid-April and returns to Amherst near mid-November.
- What is the rainy season in Amherst?
- Rainfall in Amherst peaks in May near 4.4 inches, out of about 42 inches annually.
- What is the warmest month in Amherst?
- On average July tops the year in Amherst at about 76°F.
- What is the coldest month in Amherst?
- The coldest stretch in Amherst falls in January, around 28°F on average.
- When can I start a vegetable garden in Amherst?
- In Amherst, sow peas and hardy greens around mid-April; Amherst's tomatoes and peppers wait two weeks more.
- How many rainy days does Amherst get?
- Amherst averages about 215 days with measurable rain or snow each year.
- What hardiness zone is Amherst?
- Because Amherst bottoms near 28°F in January, that winter low sets Amherst's USDA zone — verify by ZIP.
- What is the 10-day forecast for Amherst?
- Amherst'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 Amherst?
- See this week's day-by-day rain chances for Amherst in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Amherst?
- Current conditions for Amherst and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Amherst forecast updated?
- The Amherst forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Amherst?
- Today's sunrise and sunset times for Amherst 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 Amherst?
- The next few days in Amherst's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The warm-summer humid continental climate of Amherst, Ohio carries typical Januarys near 28°F and Julys around 76°F — 48°F of seasonal travel.
Rain and snow bring Amherst roughly 42 inches a year across approximately 215 measurable-precipitation days.
From 41.4°N, Amherst sees a 48°F seasonal swing that governs Amherst's planting and frost windows.
ZIP codes in Amherst
- 44001