Big Lake, Indiana Weather
Day 93 of summer. Read today’s microseason across nine climate regions →
Big Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:30 AM EDT · Open-Meteo
- TodaySep 21Light Drizzle later22%0.01″61°55°—
- TuesdaySep 22Overcast——62°50°+1°
- WednesdaySep 23Light Drizzle—0.06″59°57°-3°
- ThursdaySep 24Overcast——68°53°+9°
- FridaySep 25Overcast——69°48°+1°
- SaturdaySep 26Overcast——69°49°0°
- SundaySep 27Overcast——71°48°+2°
Air quality now AQI 27 · Good
AQI 27 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.2 µg/m³, PM10 at 6.3 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
PM × Wind × Precip
PM2.5 at 6.2 µg/m³, PM10 at 6.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.98
- Wind
- breezy
- Recent rain
- 0h 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 5:18 PM
- Moonset
- 1:58 AM
- In sign
- ♑︎ Capricorn
Big Lake at a glance
- Today vs. normal: Today averages 58°F (high 61°F, low 55°F), 3°F below the 61°F normal for Sep 21
- Last frost: April 27 (1991–2020 median, NOAA station 14 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Big Lake
- Mon60°55°22%
- Tue62°50°2%
- Wed59°57°6%
- Thu68°53°1%
- Fri69°48°1%
- Sat69°49°0%
- Sun71°48°5%
- Mon73°49°7%
- Tue75°54°19%
- Wed68°50°19%
- Thu70°46°12%
- Fri67°52°26%
- Sat73°52°20%
- Sun77°57°17%
- Mon75°58°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 17) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Big Lake
SPC includes Big Lake in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Big Lake
Big Lake sits in Noble County, where the year’s longest day runs 15h 9m of daylight and its shortest just 9h 11m — a swing of +5h 58m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Indianapolis, the state’s largest city, lies about 109 miles to the SSW. The nearest town Big Lake tracks is Fort Wayne, roughly 22 miles to the SE.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| April | lettuce, peas, spinach, radishes | radishes |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | tomatoes, peppers, beans, squash, fall brassicas, carrots | lettuce, peas, spinach, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash, garlic |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
In Big Lake, July runs warmest near 72°F and January coldest around 24°F, while June is the wettest month (4.6 inches) and February the driest (1.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 24° | 2.5″ | 12 |
| February | 27° | 1.9″ | 9 |
| March | 37° | 2.6″ | 10 |
| April | 49° | 3.8″ | 11 |
| May | 60° | 4.3″ | 12 |
| June | 69° | 4.6″ | 11 |
| July | 72° | 3.9″ | 10 |
| August | 70° | 4.1″ | 10 |
| September | 64° | 3.0″ | 9 |
| October | 52° | 2.9″ | 10 |
| November | 40° | 3.0″ | 10 |
| December | 30° | 2.4″ | 11 |
Regional context
Similar climates Tri-Lakes, IN, Merriam, IN, Bear Lake, IN
Drawing on NOAA NCEI 1991-2020 normals, Big Lake's January averages 24°F and July 72°F — 48°F apart — while precipitation totals roughly 39.1 inches over some 124 days.
Precipitation in Big Lake runs summer-dominant: June averages 4.6 inches across 11.3 days of warm-season storms, while February drops to 1.9 inches over 9.0 rainy days of drier cool air. Big Lake shares that warm-season-wet pattern with places like Tri-Lakes, IN, Merriam, IN and Bear Lake, IN.
By April 27 the frosts ease in Big Lake, opening the season for kale, peas, spinach, and parsnips. Hold Big Lake's tender crops — tomatoes, peppers, basil — until 10-14 days past Big Lake's last frost. Around October 17, freezing nights resume in Big Lake and tender crops must come in. Sheltered Big Lake yards can escape a light frost.
Similar climates: Tri-Lakes, IN, Merriam, IN, Bear Lake, IN, Wolflake, IN, Columbia City, IN.
Frequently asked
- When does it freeze in Big Lake?
- Frost typically leaves Big Lake by April 27 and returns to Big Lake near October 17.
- What is the rainy season in Big Lake?
- June is the wettest month in Big Lake, about 4.6 inches on average; the year totals roughly 39 inches.
- What is the warmest month in Big Lake?
- July is Big Lake's warmest month, averaging about 72°F.
- What is the coldest month in Big Lake?
- Big Lake bottoms out in January, with a mean near 24°F.
- When can I start a vegetable garden in Big Lake?
- Big Lake's last frost (April 27) cues hardy greens; in Big Lake, hold heat-lovers two weeks past.
- How many rainy days does Big Lake get?
- Expect roughly 124 wet days a year in Big Lake.
- What hardiness zone is Big Lake?
- Big Lake's hardiness zone tracks its winter low; with January near 24°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Big Lake?
- Big Lake'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 Big Lake?
- See this week's day-by-day rain chances for Big Lake in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Big Lake?
- Current conditions for Big Lake and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Big Lake forecast updated?
- The Big Lake forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Big Lake?
- Today's sunrise and sunset times for Big Lake 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 Big Lake?
- The next few days in Big Lake's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Big Lake sits at 41.3°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in Big Lake
- 46701
- 46725