Highland, Indiana Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Highland weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Showers76%0.31″83°69°—
- SundayJul 5Foggy15%—74°65°-9°
- MondayJul 6Overcast——77°66°+3°
- TuesdayJul 7Overcast——86°64°+9°
- WednesdayJul 8Light Drizzle14%0.01″85°64°-1°
- ThursdayJul 9Drizzle29%0.08″73°65°-12°
- FridayJul 10Overcast29%—83°63°+10°
AQI 39 (Good), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 6.3 µg/m³, PM10 at 6.5 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
Ozone × UV × Sky
Ozone at AQI 35. Overcast through the UV peak window (cloud cover ~62%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 6.3 µg/m³, PM10 at 6.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.97
- Wind
- light
- Recent rain
- 1h 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:47 PM
- Moonset
- 9:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Highland at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 46322
15-Day Forecast — Highland
- Sat83°69°76%
- Sun74°65°15%
- Mon77°66°5%
- Tue86°64°3%
- Wed85°64°14%
- Thu73°65°29%
- Fri83°63°29%
- Sat82°68°17%
- Sun83°68°9%
- Mon92°68°10%
- Tue74°67°11%
- Wed79°63°13%
- Thu82°63°29%
- Fri86°69°27%
- Sat76°64°11%
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 — Highland
SPC has placed Highland 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
In Highland, July runs warmest near 74°F and January coldest around 23°F, while June is the wettest month (4.9 inches) and February the driest (2.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 23° | 2.5″ | 6 |
| February | 27° | 2.1″ | 5 |
| March | 37° | 2.6″ | 6 |
| April | 49° | 4.0″ | 8 |
| May | 60° | 4.6″ | 8 |
| June | 70° | 4.9″ | 7 |
| July | 74° | 4.7″ | 7 |
| August | 72° | 4.0″ | 6 |
| September | 65° | 3.4″ | 6 |
| October | 53° | 3.6″ | 7 |
| November | 40° | 3.0″ | 6 |
| December | 29° | 2.5″ | 6 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Highland's January averages 23°F and July 74°F — 51°F apart — while precipitation totals roughly 42.1 inches over some 77 days.
Precipitation in Highland runs summer-dominant: June averages 4.9 inches across 7.1 days of warm-season storms, while February drops to 2.1 inches over 4.7 rainy days of drier cool air. It is a warm-season-wet pattern Highland shares with places like Griffith, IN, Munster, IN and Dyer, IN.
The cool-season window in Highland starts at mid-April, when nights stop freezing — think kale, peas, spinach, and parsnips. Warm-soil crops in Highland wait about two weeks past Highland's last frost, once the soil warms. Around mid-November, freezing nights resume in Highland and tender crops must come in. Within Highland, cold-air pooling chills low spots by 5-10°F, shifting Highland's local frost dates.
Similar climates: Griffith, IN, Munster, IN, Dyer, IN, Schererville, IN, Ross, IN.
Frequently asked
- When does it freeze in Highland?
- Frost typically leaves Highland by mid-April and returns to Highland near mid-November.
- What is the rainy season in Highland?
- Highland sees its heaviest rain in June (around 4.9 inches), part of roughly 42 inches a year.
- What is the warmest month in Highland?
- July is Highland's warmest month, averaging about 74°F.
- What is the coldest month in Highland?
- Highland bottoms out in January, with a mean near 23°F.
- When can I start a vegetable garden in Highland?
- Highland's last frost (mid-April) cues hardy greens; in Highland, hold heat-lovers two weeks past.
- How many rainy days does Highland get?
- Expect roughly 77 wet days a year in Highland.
- What hardiness zone is Highland?
- Highland sits in the USDA zone set by January lows near 23°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Highland?
- Highland'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 Highland?
- See this week's day-by-day rain chances for Highland in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Highland?
- Current conditions for Highland and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Highland forecast updated?
- The Highland forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Highland?
- Today's sunrise and sunset times for Highland 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 Highland?
- The next few days in Highland's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Highland, Indiana has a warm-summer humid continental climate: January averages roughly 23°F, July about 74°F, 51°F between them.
Yearly precipitation in Highland totals around 42 inches, spread over about 77 days of rain or snow.
Latitude 41.5°N gives Highland its 51°F swing, and with it the rhythm of Highland's growing season.
ZIP codes in Highland
- 46322