Great Miami River near Taylorsville
1.6 mi- Level
- 3.0 ft
- Flow
- 786 cfs
Forecast peak 3.0 ft Sat 8 AM
Reading from Sat 1:30 AM · NWS gauge page
Observed 3:10 AM EDT at KDAY
Vandalia, OH weather
Clear and 46°8°.
Today: low 47°8° (likely 41°5° to 47°8°), high 70°21° (likely 67°19° to 70°21°).
Now 46°8°
Clear
- Wind
- Calm
- Up to 5 mph8 km/h through 3 PM
- Dew point
- 43°6°
- Comfortable
- UV index
- 0Low
- Moderate 12–5 PM · peak 4
- Air quality
- 78Moderate
- Main pollutant: PM2.5 (fine particles)
- Pressure
- 30.38 inHg1029 hPa
- Steady over the last 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
About the same as this time yesterday (48°9° then, 48°9° now)
Good hours for
TonightNear 48°9° · Clear
This morningUp to 61°16° by 11 AM · Clear
This afternoonUp to 70°21° by 3 PM · Clear
TonightDown to 46°8° by 5 AM · Clear
Tomorrow morningUp to 59°15° by 11 AM · Clear
Tomorrow afternoonUp to 72°22° by 4 PM · Partly cloudy
Tomorrow nightDown to 49°9° by 2 AM · Partly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 3a | Clear | 49°9° (likely 45°7° to 49°9°) | 49°9° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 84% | 1% | 0 |
| Sat 4a | Clear | 48°9° (likely 44°7° to 48°9°) | 47°8° | 0% | 3 mph5 km/h from E, gusts 6 mph10 km/h | 84% | 0% | 0 |
| Sat 5a | Clear | 47°8° (likely 44°7° to 47°8°) | 46°8° | 0% | 3 mph5 km/h from E, gusts 6 mph9 km/h | 85% | 1% | 0 |
| Sat 6a | Clear | 47°8° (likely 43°6° to 47°8°) | 47°8° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 83% | 0% | 0 |
| Sat 7a | Clear | 47°8° (likely 42°6° to 47°8°) | 47°8° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 82% | 1% | 0 |
| Sat 8a | Sunny | 47°8° (likely 41°5° to 47°8°) | 47°8° | 0% | 2 mph3 km/h from E, gusts 5 mph7 km/h | 82% | 2% | 0 |
| Sat 9a | Sunny | 49°9° (likely 43°6° to 49°9°) | 49°9° | 0% | 2 mph3 km/h from E, gusts 5 mph8 km/h | 81% | 3% | 0 |
| Sat 10a | Sunny | 55°13° (likely 51°11° to 55°13°) | 55°13° | 0% | 2 mph3 km/h from E, gusts 5 mph8 km/h | 71% | 0% | 1 |
| Sat 11a | Sunny | 61°16° (likely 57°14° to 61°16°) | 61°16° | 0% | 2 mph3 km/h from E, gusts 6 mph10 km/h | 56% | 0% | 2 |
| Sat 12p | Sunny | 65°18° (likely 61°16° to 65°18°) | 65°18° | 0% | 3 mph5 km/h from E, gusts 7 mph11 km/h | 49% | 3% | 3 |
| Sat 1p | Sunny | 68°20° (likely 64°18° to 68°20°) | 68°20° | 0% | 3 mph5 km/h from E, gusts 7 mph12 km/h | 44% | 6% | 4 |
| Sat 2p | Mostly sunny | 69°21° (likely 66°19° to 69°21°) | 69°21° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 42% | 18% | 4 |
| Sat 3p | Mostly sunny | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from E, gusts 8 mph12 km/h | 40% | 42% | 4 |
| Sat 4p | Sunny | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 6 mph10 km/h from E, gusts 8 mph12 km/h | 40% | 24% | 3 |
| Sat 5p | Sunny | 68°20° (likely 67°19° to 68°20°) | 68°20° | 0% | 6 mph10 km/h from E, gusts 8 mph13 km/h | 41% | 41% | 2 |
| Sat 6p | Sunny | 67°19° (likely 63°17° to 67°19°) | 67°19° | 0% | 5 mph8 km/h from E, gusts 8 mph14 km/h | 44% | 38% | 1 |
| Sat 7p | Clear | 64°18° (likely 58°14° to 64°18°) | 64°18° | 0% | 5 mph8 km/h from E, gusts 7 mph12 km/h | 49% | 40% | 0 |
| Sat 8p | Mostly clear | 58°14° (likely 55°13° to 59°15°) | 58°14° | 0% | 6 mph10 km/h from E, gusts 8 mph12 km/h | 57% | 44% | 0 |
| Sat 9p | Mostly clear | 55°13° (likely 54°12° to 56°13°) | 55°13° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 66% | 42% | 0 |
| Sat 10p | Mostly clear | 53°12° (likely 52°11° to 54°12°) | 53°12° | 0% | 5 mph8 km/h from E, gusts 9 mph14 km/h | 73% | 42% | 0 |
| Sat 11p | Mostly clear | 52°11° (likely 50°10° to 52°11°) | 52°11° | 0% | 3 mph5 km/h from E, gusts 8 mph13 km/h | 74% | 45% | 0 |
| Sun 12a | Mostly clear | 51°11° (likely 49°9° to 51°11°) | 50°10° | 0% | 3 mph5 km/h from SE, gusts 8 mph13 km/h | 78% | 32% | 0 |
| Sun 1a | Clear | 50°10° (likely 48°9° to 50°10°) | 49°9° | 0% | 3 mph5 km/h from SE, gusts 8 mph12 km/h | 80% | 2% | 0 |
| Sun 2a | Clear | 49°9° (likely 47°8° to 49°9°) | 49°9° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 84% | 8% | 0 |
| Sun 3a | Clear | 48°9° (likely 46°8° to 48°9°) | 48°9° | 0% | 2 mph3 km/h from SE, gusts 5 mph9 km/h | 86% | 2% | 0 |
| Sun 4a | Clear | 47°8° (likely 44°7° to 47°8°) | 47°8° | 0% | 2 mph3 km/h from SE, gusts 5 mph9 km/h | 88% | 0% | 0 |
| Sun 5a | Clear | 46°8° (likely 43°6° to 46°8°) | 46°8° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 92% | 1% | 0 |
| Sun 6a | Clear | 45°7° (likely 42°6° to 45°7°) | 45°7° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 93% | 2% | 0 |
| Sun 7a | Clear | 44°7° (likely 42°6° to 44°7°) | 44°7° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 93% | 1% | 0 |
| Sun 8a | Sunny | 44°7° (likely 42°6° to 44°7°) | 44°7° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 92% | 1% | 0 |
| Sun 9a | Sunny | 46°8° (likely 43°6° to 46°8°) | 45°7° | 0% | 3 mph5 km/h from SE, gusts 6 mph9 km/h | 91% | 1% | 0 |
| Sun 10a | Mostly sunny | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 3 mph5 km/h from SE, gusts 6 mph10 km/h | 77% | 12% | 1 |
| Sun 11a | Sunny | 59°15° (likely 56°13° to 59°15°) | 59°15° | 0% | 3 mph5 km/h from SE, gusts 7 mph10 km/h | 60% | 40% | 2 |
| Sun 12p | Mostly sunny | 63°17° (likely 61°16° to 63°17°) | 63°17° | 0% | 3 mph5 km/h from SE, gusts 7 mph11 km/h | 52% | 45% | 3 |
| Sun 1p | Mostly sunny | 67°19° (likely 64°18° to 67°19°) | 67°19° | 0% | 3 mph5 km/h from SE, gusts 6 mph10 km/h | 45% | 44% | 4 |
| Sun 2p | Mostly sunny | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 3 mph5 km/h from S, gusts 5 mph9 km/h | 43% | 11% | 4 |
| Sun 3p | Sunny | 70°21° (likely 68°20° to 70°21°) | 70°21° | 0% | 3 mph5 km/h from SE, gusts 5 mph8 km/h | 40% | 44% | 4 |
| Sun 4p | Mostly sunny | 72°22° (likely 68°20° to 72°22°) | 72°22° | 0% | 3 mph5 km/h from SE, gusts 5 mph8 km/h | 38% | 50% | 3 |
| Sun 5p | Partly sunny | 70°21° (likely 68°20° to 70°21°) | 70°21° | 0% | 3 mph5 km/h from SE, gusts 4 mph7 km/h | 39% | 47% | 2 |
| Sun 6p | Partly sunny | 69°21° (likely 65°18° to 69°21°) | 69°21° | 0% | 2 mph3 km/h from SE, gusts 4 mph7 km/h | 42% | 23% | 1 |
| Sun 7p | Mostly clear | 65°18° (likely 61°16° to 65°18°) | 65°18° | 0% | 2 mph3 km/h from SE, gusts 2 mph4 km/h | 46% | 46% | 0 |
| Sun 8p | Mostly clear | 59°15° (likely 58°14° to 60°16°) | 59°15° | 0% | 2 mph3 km/h from E, gusts 3 mph5 km/h | 58% | 37% | 0 |
| Sun 9p | Clear | 57°14° (likely 53°12° to 57°14°) | 57°14° | 0% | 2 mph3 km/h from SE, gusts 3 mph4 km/h | 65% | 34% | 0 |
| Sun 10p | Mostly clear | 55°13° (likely 50°10° to 56°13°) | 55°13° | 0% | 2 mph3 km/h from SE, gusts 3 mph5 km/h | 73% | 32% | 0 |
| Sun 11p | Mostly clear | 53°12° (likely 48°9° to 55°13°) | 53°12° | 0% | 3 mph5 km/h from SE, gusts 4 mph6 km/h | 78% | 28% | 0 |
| Mon 12a | Mostly clear | 51°11° (likely 46°8° to 54°12°) | 51°11° | 0% | 3 mph5 km/h from SE, gusts 3 mph6 km/h | 81% | 29% | 0 |
| Mon 1a | Clear | 50°10° (likely 44°7° to 53°12°) | 50°10° | 0% | 2 mph3 km/h from SE, gusts 3 mph6 km/h | 82% | 5% | 0 |
| Mon 2a | Mostly clear | 49°9° (likely 43°6° to 53°12°) | 49°9° | 0% | 2 mph3 km/h from S, gusts 3 mph5 km/h | 85% | 18% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Mostly sunny. High 70°21°, low 47°8°. Typical 63°17° / 43°6°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 47°8°Dry
Afternoon
noon–6 PM
Mostly sunny, 70°21°Dry
Evening
6 PM–midnight
Mostly clear, 58°14°Dry
Overnight
midnight–6 AM
Clear, 46°8°Dry
Official NWS forecast
Today: Sunny, with a high near 70. East wind 2 to 6 mph.
Tonight: Clear, with a low around 47. East wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 67°19°–70°21°
- Low, likely
- 41°5°–47°8°
- Typical high / low
- 63°17° / 43°6°
- Wind
- 6 mph10 km/h, gusts 13 mph21 km/h
- UV peak
- 4
Tomorrow, Oct 25. Mostly sunny. High 72°22°, low 45°7°. Typical 62°17° / 43°6°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 44°7°Dry
Afternoon
noon–6 PM
Sunny, 72°22°Dry
Evening
6 PM–midnight
Clear, 59°15°Dry
Overnight
midnight–6 AM
Mostly clear, 46°8°Dry
Official NWS forecast
Day: Sunny, with a high near 72. Southeast wind around 3 mph.
Night: Mostly clear, with a low around 45. Southeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 68°20°–72°22°
- Low, likely
- 42°6°–45°7°
- Typical high / low
- 62°17° / 43°6°
- Wind
- 5 mph8 km/h, gusts 13 mph21 km/h
- UV peak
- 4
Monday, Oct 26. Partly sunny. High 73°23°, low 48°9°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 44°7°Dry
Afternoon
noon–6 PM
Mostly sunny, 71°22°Dry
Evening
6 PM–midnight
Cloudy, 60°15°Dry
Overnight
midnight–6 AM
Clear, 47°8°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 73.
Night: Partly cloudy, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 70°21°–73°23°
- Low, likely
- 40°4°–48°9°
- Typical high / low
- 62°17° / 42°6°
- Wind
- 5 mph8 km/h
- UV peak
- 4
Tuesday, Oct 27. Mostly cloudy. High 69°21°, low 49°9°. Typical 61°16° / 42°6°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 46°8°Dry
Afternoon
noon–6 PM
Cloudy, 69°20°Dry
Evening
6 PM–midnight
Cloudy, 59°15°Dry
Overnight
midnight–6 AM
Cloudy, 51°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 69.
Night: Mostly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 66°19°–72°22°
- Low, likely
- 42°6°–49°9°
- Typical high / low
- 61°16° / 42°6°
- Wind
- 8 mph12 km/h, gusts 15 mph24 km/h
- UV peak
- 4
Wednesday, Oct 28. Cloudy. High 73°23°, low 51°11°. Typical 61°16° / 42°6°. Dry. Forecasts agree.
Morning
6 AM–noon
Partly sunny, 49°10°Dry
Afternoon
noon–6 PM
Sunny, 71°22°Dry
Evening
6 PM–midnight
Clear, 60°16°Dry
Overnight
midnight–6 AM
Clear, 51°10°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 73.
Night: Mostly clear, with a low around 51.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 70°21°–73°23°
- Low, likely
- 48°9°–51°11°
- Typical high / low
- 61°16° / 42°6°
- Wind
- 7 mph11 km/h, gusts 16 mph26 km/h
- UV peak
- 4
Thursday, Oct 29. Mostly sunny. High 75°24°, low 48°9°. Typical 60°16° / 41°5°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 49°10°Dry
Afternoon
noon–6 PM
Sunny, 72°22°Dry
Evening
6 PM–midnight
Clear, 60°16°Dry
Overnight
midnight–6 AM
Clear, 49°9°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 75.
Night: Mostly clear, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 72°22°–75°24°
- Low, likely
- 47°8°–51°11°
- Typical high / low
- 60°16° / 41°5°
- Wind
- 9 mph15 km/h, gusts 22 mph35 km/h
- UV peak
- 4
Friday, Oct 30. Partly sunny. High 72°22°, low 48°9°. Typical 60°16° / 41°5°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 48°9°Dry
Afternoon
noon–6 PM
Sunny, 71°22°Dry
Evening
6 PM–midnight
Mostly clear, 60°16°Dry
Overnight
midnight–6 AM
Cloudy, 50°10°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 72.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 67°19°–75°24°
- Low, likely
- 40°4°–54°12°
- Typical high / low
- 60°16° / 41°5°
- Wind
- 9 mph14 km/h, gusts 14 mph23 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 72°22°, low 52°11°. Typical 60°16° / 41°5°. Rain 0.02 in0.5 mm, 20% chance. Mostly agree.
Morning
6 AM–noon
Partly sunny, 50°10°Dry
Afternoon
noon–6 PM
Cloudy, 72°22°Dry
Evening
6 PM–midnight
Cloudy, 63°17°Dry
Overnight
midnight–6 AM
Drizzle, 57°14°30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 69°21°–74°23°
- Low, likely
- 44°7°–59°15°
- Typical high / low
- 60°16° / 41°5°
- Wind
- 10 mph17 km/h, gusts 18 mph29 km/h
- UV peak
- 3
Sunday, Nov 1. Drizzle. High 68°20°, low 57°14°. Typical 59°15° / 40°4°. Rain 0.16 in4.1 mm, 40% chance. Mostly agree.
Morning
6 AM–noon
Drizzle, 58°14°40% chance
Afternoon
noon–6 PM
Drizzle, 67°19°40% chance · 0.02 in0.6 mm
Evening
6 PM–midnight
Cloudy, 64°18°40% chance · 0.12 in2.9 mm
Overnight
midnight–6 AM
Cloudy, 61°16°40% chance · 0.2 in5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 65°18°–71°22°
- Low, likely
- 53°12°–61°16°
- Typical high / low
- 59°15° / 40°4°
- Wind
- 19 mph30 km/h, gusts 38 mph61 km/h
Monday, Nov 2. Drizzle. High 64°18°, low 53°12°. Typical 59°15° / 40°4°. Rain 0.41 in10 mm, 50% chance. Forecasts agree.
Morning
6 AM–noon
Drizzle, 61°16°50% chance · 0.2 in5.2 mm
Afternoon
noon–6 PM
Cloudy, 62°17°40% chance · 0.28 in7.1 mm
Evening
6 PM–midnight
Cloudy, 54°12°30% chance · 0.12 in2.9 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 63°17°–64°18°
- Low, likely
- 49°9°–56°13°
- Typical high / low
- 59°15° / 40°4°
- Wind
- 19 mph31 km/h, gusts 41 mph66 km/h
- UV peak
- 2
The outlook
Today
Dry, high 70°, low 47°.
Tomorrow
Dry, high 72°, low 45°.
Monday
Dry, high 73°, low 48°.
Rest of week
Highs 64–75°; chance of precipitation on Sunday, Monday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (ILN) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view
Rivers
NOAA river gauges within 25 mi
Below flood stage
Stillwater River above Englewood
5.0 mi- Level
- 2.8 ft
- Flow
- 131 cfs
Forecast peak 2.8 ft Sat 8 AM
Reading from Sat 1:30 AM · NWS gauge page
Great Miami River at Dayton
7.9 mi- Level
- 24.3 ft
- Flow
- 907 cfs
Forecast peak 24.3 ft Sat 8 AM
Reading from Sat 1:30 AM · NWS gauge page
Mad River near Dayton
7.9 mi- Level
- 2.8 ft
- Flow
- 397 cfs
Forecast peak 2.7 ft Sat 8 AM
Reading from Sat 1:30 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 80% less heating than a typical week.
This week 19Typical 94
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 10
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at.
Comfort
Dry air outside (dew point 43°F).
Open the windows?
Today, 11:00 AM–7:00 PM
Good stretch to open the windows.
Is this typical?
Dayton International Airport · official normals 1991–2020 · records 1893–2026
Oct 24, today vs a typical year
Today’s expected high is 7°4° warmer than typical.
- Normal high / low
- 63°17° / 43°6°
- Forecast high / low
- 70°21° / 47°8°
- Record high
- 82°28° in 1899
- Record low
- 23°−5° in 1981
Last 7 days vs normal
On average 1° colder than normal (daily mean temperature).
- −5°−3°SunOct 18
- −2°−1°MonOct 19
- +1°±0°TueOct 20
- ±0°WedOct 21
- +2°+1°ThuOct 22
- —FriOct 23
- —SatOct 24
Vandalia weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:56 AM, sunset 6:44 PM.
- Daylight
- 10 h 48 min
- Losing 2 min 25 s a day; shortest Dec 21, 1 h 27 min less
- Golden hour
- 6:07–7:01 PM
- Morning 7:39–8:34 AM
- Blue hour
- 7:01–7:12 PM
- Morning 7:29–7:39 AM; first light 7:29 AM
Stars tonight? Fair
Clear 3:39–7:29 AM, but the moon is 96% lit and up.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 6:10 AM · rises 5:41 PM
- Full moon
- Oct 26
- New moon
- Nov 9
