Observed 8:50 AM EDT at KOSU

Westerville, OH weather

Sunny and 45°7°.

Forecasts agree

Now 45°7°

Sunny

Wind: Calm; Up to 5 mph8 km/h through 9 PM
Dew point: 43°6°; Comfortable
Humidity: 93%; Air 45°7°, dew point 43°6° · fog or dew likely
UV index: 0Low; Moderate 12–4 PM · peak 4
Air quality: 77Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.45 inHg1031 hPa; Rising slowly · +0.04 inHg+1.3 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (42°6° then, 42°6° now)

Good hours for

Above 60°16° today by noon
High 69°21° today at 4 PM
Below 60°16° tonight after 8 PM
Low 43°6° tomorrow at 7 AM

This morningUp to 57°14° by 11 AM · Clear
This afternoonUp to 69°21° by 4 PM · Clear
TonightDown to 44°7° by 5 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 69°21° by 5 PM · Partly cloudy
Tomorrow nightDown to 45°7° by 4 AM · Partly cloudy
Monday morningNear 43°6° · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 9a	Sunny	45°7° (likely 44°7° to 47°8°)	43°6°	0%	3 mph5 km/h from E, gusts 4 mph6 km/h	91%	4%	0
Sat 10a	Sunny	52°11° (likely 51°11° to 53°12°)	52°11°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	77%	0%	1
Sat 11a	Sunny	57°14° (likely 56°13° to 58°14°)	57°14°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	62%	0%	2
Sat 12p	Sunny	61°16° (likely 59°15° to 62°17°)	61°16°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	54%	0%	3
Sat 1p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	3 mph5 km/h from E, gusts 5 mph8 km/h	47%	0%	4
Sat 2p	Sunny	66°19° (likely 64°18° to 66°19°)	66°19°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	44%	0%	4
Sat 3p	Sunny	67°19° (likely 65°18° to 67°19°)	67°19°	0%	5 mph8 km/h from E, gusts 6 mph10 km/h	43%	1%	3
Sat 4p	Sunny	69°21° (likely 66°19° to 69°21°)	69°21°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	41%	2%	2
Sat 5p	Sunny	67°19° (likely 65°18° to 67°19°)	67°19°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	41%	2%	1
Sat 6p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	46%	2%	0
Sat 7p	Clear	61°16° (likely 57°14° to 61°16°)	61°16°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	53%	1%	0
Sat 8p	Clear	55°13° (likely 54°12° to 56°13°)	55°13°	0%	5 mph8 km/h from E, gusts 8 mph14 km/h	66%	3%	0
Sat 9p	Mostly clear	53°12° (likely 52°11° to 54°12°)	53°12°	0%	5 mph8 km/h from E, gusts 9 mph15 km/h	71%	11%	0
Sat 10p	Clear	51°11° (likely 51°11° to 52°11°)	50°10°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	80%	4%	0
Sat 11p	Mostly clear	50°10° (likely 49°9° to 51°11°)	49°9°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	83%	16%	0
Sun 12a	Clear	48°9° (likely 47°8° to 50°10°)	47°8°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	89%	5%	0
Sun 1a	Clear	47°8° (likely 46°8° to 49°9°)	47°8°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	93%	1%	0
Sun 2a	Clear	46°8° (likely 46°8° to 48°9°)	46°8°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	94%	2%	0
Sun 3a	Clear	46°8° (likely 44°7° to 47°8°)	46°8°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	93%	4%	0
Sun 4a	Clear	45°7° (likely 44°7° to 46°8°)	45°7°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	96%	2%	0
Sun 5a	Clear	44°7° (likely 43°6° to 45°7°)	44°7°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	97%	1%	0
Sun 6a	Clear	44°7° (likely 43°6° to 45°7°)	42°6°	0%	3 mph5 km/h from SE, gusts 8 mph12 km/h	95%	7%	0
Sun 7a	Clear	43°6° (likely 42°6° to 44°7°)	42°6°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	95%	6%	0
Sun 8a	Sunny	43°6° (likely 42°6° to 44°7°)	42°6°	0%	3 mph5 km/h from SE, gusts 8 mph14 km/h	95%	9%	0
Sun 9a	Sunny	45°7° (likely 44°7° to 46°8°)	44°7°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	93%	10%	0
Sun 10a	Sunny	52°11° (likely 50°10° to 53°12°)	52°11°	0%	3 mph5 km/h from SE, gusts 11 mph18 km/h	75%	1%	1
Sun 11a	Sunny	57°14° (likely 54°12° to 57°14°)	57°14°	0%	5 mph8 km/h from SE, gusts 10 mph16 km/h	59%	1%	2
Sun 12p	Mostly sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	53%	45%	3
Sun 1p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	48%	14%	4
Sun 2p	Partly sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	5 mph8 km/h from S, gusts 8 mph12 km/h	44%	68%	4
Sun 3p	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	0%	5 mph8 km/h from S, gusts 7 mph11 km/h	41%	74%	4
Sun 4p	Mostly sunny	68°20° (likely 66°19° to 68°20°)	68°20°	0%	5 mph8 km/h from S, gusts 7 mph11 km/h	41%	54%	3
Sun 5p	Mostly sunny	69°21° (likely 65°18° to 69°21°)	69°21°	0%	5 mph8 km/h from S, gusts 6 mph10 km/h	40%	44%	2
Sun 6p	Mostly sunny	66°19° (likely 62°17° to 66°19°)	66°19°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	45%	57%	1
Sun 7p	Cloudy	63°17° (likely 58°14° to 63°17°)	63°17°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	50%	71%	0
Sun 8p	Cloudy	59°15° (likely 56°13° to 59°15°)	59°15°	0%	2 mph3 km/h from SE, gusts 7 mph10 km/h	58%	67%	0
Sun 9p	Clear	54°12° (likely 54°12° to 56°13°)	54°12°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	72%	56%	0
Sun 10p	Mostly clear	52°11° (likely 52°11° to 54°12°)	52°11°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	78%	47%	0
Sun 11p	Clear	51°11° (likely 50°10° to 52°11°)	50°10°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	87%	12%	0
Mon 12a	Clear	49°9° (likely 49°9° to 51°11°)	48°9°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	89%	15%	0
Mon 1a	Mostly clear	48°9° (likely 47°8° to 51°11°)	48°9°	0%	2 mph3 km/h from S, gusts 6 mph10 km/h	93%	48%	0
Mon 2a	Mostly clear	46°8° (likely 46°8° to 51°11°)	46°8°	0%	2 mph3 km/h from S, gusts 6 mph10 km/h	95%	38%	0
Mon 3a	Mostly clear	46°8° (likely 44°7° to 54°12°)	46°8°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	98%	32%	0
Mon 4a	Mostly clear	45°7° (likely 44°7° to 53°12°)	45°7°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	97%	28%	0
Mon 5a	Mostly clear	45°7° (likely 43°6° to 53°12°)	45°7°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	98%	31%	0
Mon 6a	Clear	43°6° (likely 42°6° to 52°11°)	43°6°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	100%	28%	0
Mon 7a	Mostly clear	42°6° (likely 41°5° to 51°11°)	42°6°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	100%	34%	0
Mon 8a	Mostly sunny	43°6° (likely 41°5° to 51°11°)	43°6°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	99%	32%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Sunny. High 69°21°, low 43°6°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Official NWS forecast
Today: Sunny, with a high near 69. East wind around 5 mph.
Tonight: Mostly clear, with a low around 43. East wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–69°21°
Low, likely
42°6°–44°7°
Typical high / low
62°17° / 42°6°
Wind
6 mph10 km/h, gusts 12 mph20 km/h
UV peak
4
Tomorrow, Oct 25. Mostly sunny. High 70°21°, low 42°6°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 45°7°
  Dry
Official NWS forecast
Day: Sunny, with a high near 70. Southeast wind around 5 mph.
Night: Mostly clear, with a low around 42. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–70°21°
Low, likely
42°6°–44°7°
Typical high / low
62°17° / 42°6°
Wind
7 mph12 km/h, gusts 15 mph24 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 72°22°, low 46°8°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72. Southwest wind around 3 mph.
Night: Partly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–72°22°
Low, likely
41°5°–49°9°
Typical high / low
61°16° / 41°5°
Wind
5 mph8 km/h, gusts 12 mph19 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 69°21°, low 47°8°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Night: Mostly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
45°7°–49°9°
Typical high / low
61°16° / 41°5°
Wind
8 mph13 km/h, gusts 14 mph22 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 71°22°, low 49°9°. Typical 60°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. 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 71.
Night: Partly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–72°22°
Low, likely
47°8°–53°12°
Typical high / low
60°16° / 41°5°
Wind
7 mph10 km/h, gusts 17 mph27 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 74°23°, low 47°8°. Typical 60°16° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 74.
Night: Mostly clear, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
72°22°–74°23°
Low, likely
47°8°–52°11°
Typical high / low
60°16° / 40°4°
Wind
8 mph12 km/h, gusts 22 mph36 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 72°22°, low 47°8°. Typical 59°15° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 72.
Night: Partly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–73°23°
Low, likely
44°7°–50°10°
Typical high / low
59°15° / 40°4°
Wind
10 mph16 km/h, gusts 20 mph32 km/h
UV peak
2
Saturday, Oct 31. Cloudy. High 68°20°, low 48°9°. Typical 59°15° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  30% chance · 0.04 in1 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 differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
60°16°–72°22°
Low, likely
45°7°–52°11°
Typical high / low
59°15° / 40°4°
Wind
8 mph12 km/h, gusts 18 mph29 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 69°21°, low 53°12°. Typical 58°14° / 39°4°. Rain 0.19 in4.8 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  40% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  40% chance · 0.04 in0.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 66°19°
  40% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Rain, 61°16°
  50% chance · 0.11 in2.7 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
68°20°–72°22°
Low, likely
49°9°–58°14°
Typical high / low
58°14° / 39°4°
Wind
16 mph26 km/h, gusts 34 mph55 km/h
UV peak
3
Monday, Nov 2. Rain. High 66°19°, low 58°14°. Typical 58°14° / 39°4°. Rain 0.51 in13 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  50% chance · 0.17 in4.2 mm
2. Afternoon
  noon–6 PM
  Rain, 62°16°
  40% chance · 0.38 in9.7 mm
3. Evening
  6 PM–midnight
  Drizzle, 58°15°
  40% chance · 0.25 in6.3 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
62°17°–68°20°
Low, likely
51°11°–62°17°
Typical high / low
58°14° / 39°4°
Wind
17 mph27 km/h, gusts 35 mph56 km/h

10 days15 days30 days

The outlook

Today
Dry, high 69°, low 43°.
Tomorrow
Dry, high 70°, low 42°.
Monday
Dry, high 72°, low 46°.
Rest of week
Highs 66–74°; chance of precipitation on 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

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Olentangy River near Worthington

6.3 mi

Below flood stage

Level: 1.8 ft
Flow: 56 cfs

Forecast peak 1.7 ft Sat 2 PM

Reading from Sat 7:30 AM · NWS gauge page

Big Walnut Creek at Hoover Pool

1.9 mi

Below flood stage

Level: 891 ft

Reading from Sat 6 AM · NWS gauge page

Big Walnut Creek at Central College

2.1 mi

Below flood stage

Level: 3.8 ft
Flow: 146 cfs

Reading from Sat 7 AM · NWS gauge page

Alum Creek at Africa

4.8 mi

Level: 2.2 ft
Flow: 114 cfs

Reading from Sat 7 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 78% less heating than a typical week.

This week 22Typical 99

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 16
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 1 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 43°F).

Open the windows?

Today, 12:00 PM–7:00 PM

Good stretch to open the windows.

Is this typical?

John Glenn International Airport · official normals 1991–2020 · records 1878–2026

Oct 24, today vs a typical year

Today’s expected high is 7°4° warmer than typical.

Last 7 days vs normal

On average 0° warmer than normal (daily mean temperature).

−5°−3°SunOct 18
−1°MonOct 19
+1°TueOct 20
+3°+2°WedOct 21
+2°+1°ThuOct 22
+3°+1°FriOct 23
—SatOct 24

Westerville weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 28 min less
Golden hour: 6:01–6:56 PM; Morning 7:35–8:29 AM
Blue hour: 6:56–7:06 PM; Morning 7:24–7:35 AM; first light 7:24 AM

Stars tonight? Fair

Clear 7:06 PM–7:25 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:05 AM · rises 5:36 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Westerville. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Westerville, OH weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Olentangy River near Worthington

Big Walnut Creek at Hoover Pool

Big Walnut Creek at Central College

Alum Creek at Africa

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon