Rensselaer, IN Weather

Jasper County8:29 PM CDT40.94°N, 87.15°WElevation 663 ft

Current conditions

Partly Cloudy
56°
Partly Cloudy
Feels like 57°
High 74° Sunday·Low 44° tonight
WindESE 5 mph
Humidity65%
Dew point45°
Cloud cover43%
UV index0 Low
Sunrise7:11 AM
Sunset5:56 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Tonight

    Partly cloudy. Low around 44, with temperatures rising to around 46 overnight. Southeast wind 0 to 5 mph.

  • Sunday

    Mostly sunny. High near 74, with temperatures falling to around 72 in the afternoon. South wind 0 to 5 mph.

  • Sunday Night

    Partly cloudy, with a low around 47. South wind 0 to 5 mph.

National Weather Service forecast updated 5 hrs ago.

Hourly

Hourly forecast
  1. Now Partly Cloudy 56°
  2. 9 PM Partly Cloudy 54°
  3. 10 PM Partly Cloudy 53°
  4. 11 PM Partly Cloudy 51°
  5. Sun12 AM Mostly Clear 50°
  6. 1 AM Mostly Clear 48°
  7. 2 AM Mostly Clear 48°
  8. 3 AM Mostly Clear 47°
  9. 4 AM Mostly Clear 46°
  10. 5 AM Mostly Clear 46°
  11. 6 AM Sunny 45°
  12. 7 AM Sunny 44°
  13. 8 AM Sunny 48°
  14. 9 AM Sunny 55°
  15. 10 AM Sunny 61°
  16. 11 AM Sunny 66°
  17. 12 PM Mostly Sunny 70°
  18. 1 PM Mostly Sunny 72°
  19. 2 PM Mostly Sunny 74°
  20. 3 PM Mostly Sunny 74°
  21. 4 PM Mostly Sunny 74°
  22. 5 PM Mostly Sunny 72°
  23. 6 PM Partly Cloudy 67°
  24. 7 PM Partly Cloudy 62°

10-day forecast

Details
  1. TonightOct 24 Partly Cloudy Partly Cloudy44°
  2. SunOct 25 Mostly Sunny Mostly Sunny47°74°
  3. MonOct 26 Mostly Sunny Mostly Sunny46°74°
  4. TueOct 27 Partly Sunny Partly Sunny51°72°
  5. WedOct 28 Partly Sunny Partly Sunny54°77°
  6. ThuOct 29 Sunny Sunny12%52°78°
  7. FriOct 30 Mostly Sunny Mostly Sunny54°77°
  8. SatOct 31 Slight Chance Rain Showers Slight Chance Rain Showers22%74°
  9. SunNov 1 Rain Rain0.29 in58°72°
  10. MonNov 2 Heavy rain Heavy rain1.32 in60°71°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Rensselaer

More weather news

Air quality

51
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Lafayette, IN reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:11 AM
Sunset 5:56 PM
Daylight 10 h 45 min (−2 min 31 s tomorrow)
Waxing Gibbous · 98% lit
Moonrise 4:48 PM Moonset 5:25 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 39°
Record high82° (1963)
Record low23° (1981)
Wettest1.66 in (1951)
Month to date1.55 in (normal 2.42 in)

Rensselaer Wwtp, records since 1900. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LOT, issued 14 hrs ago

Key Messages

- Precipitation free, unseasonably warm weather will continue through this weekend, with temperatures continuing to generally run above average through next week.

- Chances for any meaningful rainfall are low through next workweek.

Discussion

Issued at 241 AM CDT Sat Oct 24 2026

There's not a lot to speak on for this weekend as our stretch of dry, mild weather continues. Temperatures early this morning are in the 40s and 50s with mostly clear skies now giving way to a high cloud deck filling in from the west. Some patchy fog is beginning to blossom around parts of SE WI and north-central IN. Patchy coverage is expected to spread into portions of our CWA prior to daybreak, primarily across parts of NW Indiana as well as in Lake Co, IL. While dense fog is not a widespread concern, localized pockets of some denser fog will certainly be possible through early morning, especially in Lake Co, IL. Otherwise, expect another pleasant late October day today with highs forecast in the lower 70s and a fair mix of mid-high clouds and sunshine.

Tomorrow is anticipated to be slightly warmer with lower to middle 70s in the forecast. A weakly-forced cold front will drop through the area from the north late Sunday into Monday. While we're not expecting any rain out of this, it will cool things off slightly for Monday and Tuesday. Monday, given that the front will be pushing north to south across our area into the daytime, is expected to see high temperatures range from the lower and middle 60s in our north to the 70 farther south. 60s and lower 70s will persist through the week with rain-free conditions favored through at least mid-week. A series of waves is then progged to traverse the region and possibly provide us with some rain late in the week and into next weekend.

Doom

Aviation

Issued at 609 AM CDT Sat Oct 24 2026

There are no significant aviation weather concerns anticipated through the period.

Surface high pressure will center over New England today into tonight as a cold front shifts eastward from the PLains into the Upper Midwest. Overall, this will result in light south- southeasterly surface winds across the terminal airspace today and tonight, before directions turn south-southwesterly during the day Sunday. VFR conditions will prevail through the period, though higher level cloud cover can be expected.

KJB

Lot Watches

IL...None. IN...None. LM...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.