Madison, IN Weather

Jefferson County4:29 AM EDT38.74°N, 85.38°WElevation 489 ft
Special Weather Statement until 5:00 AM Wed

Current conditions

Areas Of Fog
45°
Areas Of Fog
Feels like 45°
High 73°·Low 42° tonight
WindCalm
Humidity93%
Dew point43°
Pressure30.28 inHg
Visibility10.0 mi
Cloud cover3%
UV index0 Low
Sunrise7:57 AM
Sunset6:56 PM

Observed at Madison Municipal Airport · 1 hr ago

Forecast

10-day

  • Overnight

    Areas of fog. Clear, with a low around 42. North wind around 1 mph.

  • Wednesday

    Areas of fog before 10am. Sunny, with a high near 73. Northeast wind around 2 mph.

  • Wednesday Night

    Areas of fog after 3am. Clear, with a low around 42. North wind around 1 mph.

National Weather Service forecast updated 53 min ago.

Hourly

Hourly forecast
  1. Now Areas Of Fog 44°
  2. 5 AM Areas Of Fog 43°
  3. 6 AM Areas Of Fog 42°
  4. 7 AM Areas Of Fog 42°
  5. 8 AM Areas Of Fog 42°
  6. 9 AM Areas Of Fog 44°
  7. 10 AM Sunny 52°
  8. 11 AM Sunny 58°
  9. 12 PM Sunny 63°
  10. 1 PM Sunny 68°
  11. 2 PM Sunny 71°
  12. 3 PM Sunny 72°
  13. 4 PM Sunny 72°
  14. 5 PM Sunny 73°
  15. 6 PM Clear 71°
  16. 7 PM Clear 66°
  17. 8 PM Clear 61°
  18. 9 PM Clear 53°
  19. 10 PM Clear 51°
  20. 11 PM Clear 50°
  21. Thu12 AM Clear 48°
  22. 1 AM Clear 48°
  23. 2 AM Clear 47°
  24. 3 AM Patchy Fog 46°

10-day forecast

Details
  1. TonightOct 20 Areas Of Fog Areas Of Fog42°
  2. TodayOct 21 Areas Of Fog then Sunny Areas Of Fog then Sunny42°73°
  3. ThuOct 22 Areas Of Fog then Sunny Areas Of Fog then Sunny43°71°
  4. FriOct 23 Patchy Fog then Sunny Patchy Fog then Sunny42°69°
  5. SatOct 24 Sunny Sunny43°71°
  6. SunOct 25 Mostly Sunny Mostly Sunny46°74°
  7. MonOct 26 Mostly Sunny Mostly Sunny48°73°
  8. TueOct 27 Partly Sunny Partly Sunny69°
  9. WedOct 28 Cloudy Cloudy45°57°
  10. ThuOct 29 Sunny Sunny39°57°

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 in Indiana

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Air quality

51
Moderate
Fine particles (PM2.5)

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

Forecast

  • WedModerate

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

Sun & moon

Sunrise 7:57 AM
Sunset 6:56 PM
Daylight 10 h 58 min (−2 min 23 s tomorrow)
Waxing Gibbous · 75% lit
Moonrise 4:32 PM Moonset 3:03 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Record high78° (2007)
Record low27° (2018)

Big Oaks Indiana, records since 2003. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LMK, issued 59 min ago

Key Messages

* Patchy dense river valley fog is possible early this morning.

* Beautiful weather is expected into early next week. Dry weather will continue through at least next Tuesday.

Discussion

Issued at 330 AM EDT Wed Oct 21 2026

====== Pleasant Weather with Cool Mornings and Warm Afternoons =====

It is a clear, cool morning with temperatures ranging from the upper 30s in decoupled valleys to around 50 degrees on ridges. Most places will see temperatures bottom out in the upper 30s and lower 40s this morning. Winds are calm - high pressure at the surface continues to influence our weather. River valley fog has just started to develop in portions of central KY, and we'll likely see fog expand at least along the Kentucky and Cumberland rivers through sunrise. Patchy fog will be possible elsewhere, most likely near rivers and in typical fog-prone locations.

Broad mid and upper level ridging remains in place over the central CONUS today. There is a weak mid-level shortwave disturbance generating some mid-level clouds early this morning across portions of KS and western MO, but this feature is forecast to dive southeast over the Lower MS Valley later today. We'll enjoy sunny skies with afternoon highs in the low to mid 70s. Based on yesterday's observed high temps and model 1000-850 mb thickness trends, decided to go slightly warmer than the NBM for highs today. The only other short term change was to again lower afternoon dewpoints, as afternoon mixing to near 4 kft should bring some drier air aloft to the surface. This will likely produce afternoon RH values in the 25-35 percent range, though a light NE wind will keep the fire danger low.

The forecast heading into the weekend is largely unchanged. Upstream ridging aloft, combined with sfc high pressure centered off to our N/NE, will preserve the dry airmass and give us a stretch of spectacular weather. Expect several dry days with fairly steady temps as well (chilly early mornings and pleasant afternoons).

The upper level ridge slowly drifts east with time and finally moves overhead this weekend. Model consensus suggests the ridge will deamplify through the early to middle portion of next week, with an active pattern emerging across the north-central US. The vast majority (>90%) of ensemble members keep us dry through next Tuesday, however. Forecast confidence is much lower beyond Tuesday due to increasing model spread.

Aviation

Issued at 134 AM EDT Wed Oct 21 2026

Prevailing VFR conditions are likely through much of this period with SKC and a light NE wind. Fog is likely to develop in river valleys early this morning, but should not impact the terminals. However, based on T/Td trends, HNB may see some brief vis reductions early Wednesday morning.

Lmk Watches

KY...None. IN...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 4Conservative index and reflects what the press published. Terms of use.