Cities / United States / Pennsylvania

20°

☀️ Grantham weather

Clear sky. .

Feels like 19° Wind 7 km/h W Humidity 62% Pressure 1016 hPa UV 0 Air Good 06:28 - 19:52

Right now it is 20° in Grantham with clear skies and today's high is 25° with an overnight low of 16°. The sun rises at 06:28 and sets at 19:52, giving 13h 24m of daylight. Over the coming week highs range from 25° to 31°.

Grantham is in Pennsylvania, United States, sitting 136 m above sea level. Local time is America/New_York (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

14° 20° 26° 25° 14° 20:00 · 20.6° · 0 mm 21:00 · 19.4° · 0 mm 22:00 · 18.4° · 0 mm 23:00 · 17.7° · 0 mm 00:00 · 17° · 0 mm 01:00 · 16.3° · 0 mm 02:00 · 16.1° · 0 mm 03:00 · 15.9° · 0 mm 04:00 · 15.1° · 0 mm 05:00 · 14.6° · 0 mm 06:00 · 14.3° · 0 mm 07:00 · 14.2° · 0 mm 08:00 · 16.6° · 0 mm 09:00 · 19.2° · 0 mm 10:00 · 20.7° · 0 mm 11:00 · 22.6° · 0 mm 12:00 · 23.3° · 0 mm 13:00 · 23.9° · 0 mm 14:00 · 23.6° · 0 mm 15:00 · 24.6° · 0 mm 16:00 · 25.1° · 0 mm 17:00 · 24.6° · 0 mm 18:00 · 24.2° · 0 mm 19:00 · 23° · 0 mm

Precipitation

20:00 · 0 mm 20:00 21:00 · 0 mm 22:00 · 0 mm 23:00 · 0 mm 23:00 00:00 · 0 mm 01:00 · 0 mm 02:00 · 0 mm 02:00 03:00 · 0 mm 04:00 · 0 mm 05:00 · 0 mm 05:00 06:00 · 0 mm 07:00 · 0 mm 08:00 · 0 mm 08:00 09:00 · 0 mm 10:00 · 0 mm 11:00 · 0 mm 11:00 12:00 · 0 mm 13:00 · 0 mm 14:00 · 0 mm 14:00 15:00 · 0 mm 16:00 · 0 mm 17:00 · 0 mm 17:00 18:00 · 0 mm 19:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
20:00 ☀️ 20.6° 19.7° - Clear sky
21:00 ☀️ 19.4° 18.7° - Clear sky
22:00 ☀️ 18.4° 18.1° - Clear sky
23:00 ☀️ 17.7° 17.4° - Clear sky
00:00 ☀️ 17° 16.8° - Clear sky
01:00 ☀️ 16.3° 16° - Clear sky
02:00 ☀️ 16.1° 14.8° - Clear sky
03:00 ☀️ 15.9° 14.2° - Clear sky
04:00 ☀️ 15.1° 13.8° - Clear sky
05:00 ☀️ 14.6° 13.4° - Clear sky
06:00 ☀️ 14.3° 13.5° - Clear sky
07:00 ☀️ 14.2° 13.3° - Clear sky

Next 16 days

☀️ TodayAugust 24th Avg 20° Low 16° at 03:00 High 25° at 16:00 Feels 23° Wind ~17 km/h
Clear Cloudy Clear
00:00 17°
02:00 16°
04:00 16°
06:00 16°
08:00 17°
10:00 21°
12:00 23°
14:00 24°
16:00 25°
18:00 24°
20:00 21°
22:00 18°
☀️ TuesdayAugust 25th Avg 20° Low 14° at 07:00 High 25° at 16:00 Feels 23° Wind ~20 km/h
Clear Cloudy
00:00 17°
02:00 16°
04:00 15°
06:00 14°
08:00 17°
10:00 21°
12:00 23°
14:00 24°
16:00 25°
18:00 24°
20:00 21°
22:00 19°
☁️ WednesdayAugust 26th Avg 21° Low 15° at 07:00 High 29° at 16:00 Wind ~16 km/h
Clear Cloudy
00:00 18°
02:00 16°
04:00 16°
06:00 15°
08:00 17°
10:00 23°
12:00 25°
14:00 27°
16:00 29°
18:00 28°
20:00 22°
22:00 23°
🌧️ ThursdayAugust 27th Avg 22° Low 18° at 06:00 High 31° at 15:00 24.6 mm rain Wind ~24 km/h
Cloudy Cloudy Rain
00:00 21°
02:00 21°
04:00 20°
06:00 18° 0.7mm
08:00 20° 0.4mm
10:00 24°
12:00 27°
14:00 30°
16:00 24° 0.9mm
18:00 25° 3mm
20:00 19° 0.1mm
22:00 21° 6.3mm
🌦️ FridayAugust 28th Avg 22° Low 18° at 03:00 High 28° at 14:00 0.5 mm rain Wind ~12 km/h
Cloudy Cloudy Cloudy
00:00 19°
02:00 19°
04:00 18°
06:00 19°
08:00 19°
10:00 23°
12:00 26°
14:00 28°
16:00 27°
18:00 27°
20:00 22°
22:00 20°
☀️ SaturdayAugust 29th Avg 21° Low 15° at 06:00 High 28° at 16:00 Wind ~8 km/h
Cloudy Clear Cloudy
00:00 19°
02:00 17°
04:00 16°
06:00 15°
08:00 17°
10:00 22°
12:00 26°
14:00 28°
16:00 28°
18:00 26°
20:00 22°
22:00 20°
☁️ SundayAugust 30th Avg 22° Low 16° at 04:00 High 29° at 14:00 Wind ~17 km/h
Clear Cloudy
00:00 19°
02:00 17°
04:00 16°
06:00 17°
08:00 19°
10:00 23°
12:00 27°
14:00 29°
16:00 28°
18:00 26°
20:00 25°
22:00 23°
☁️ MondayAugust 31st Avg 25° Low 20° at 04:00 High 32° at 15:00 Wind ~23 km/h
Cloudy
00:00 22°
02:00 21°
04:00 20°
06:00 21°
08:00 23°
10:00 24°
12:00 27°
14:00 31°
16:00 31°
18:00 29°
20:00 25°
22:00 23°
☁️ TuesdaySeptember 1st Avg 23° Low 18° at 23:00 High 29° at 17:00 Wind ~14 km/h
Cloudy Partly Cloudy Clear
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 21°
10:00 24°
12:00 26°
14:00 27°
16:00 29°
18:00 27°
20:00 21°
22:00 19°
🌧️ WednesdaySeptember 2nd Avg 19° Low 15° at 05:00 High 22° at 14:00 9.6 mm rain Wind ~12 km/h
Cloudy Rain
00:00 18°
02:00 17°
04:00 16°
06:00 16°
08:00 17°
10:00 20° 0.5mm
12:00 22° 0.5mm
14:00 22° 0.5mm
16:00 22° 1.2mm
18:00 20° 0.9mm
20:00 18° 0.9mm
22:00 17° 0.1mm
🌦️ ThursdaySeptember 3rd Avg 20° Low 13° at 06:00 High 27° at 16:00 4.2 mm rain Feels 29° Wind ~6 km/h
Cloudy Clear Rain
00:00 17°
02:00 16°
04:00 14°
06:00 13°
08:00 14°
10:00 19°
12:00 23°
14:00 26°
16:00 27°
18:00 25° 0.9mm
20:00 20° 0.9mm
22:00 19° 0.5mm
🌧️ FridaySeptember 4th Avg 23° Low 17° at 21:00 High 32° at 16:00 22.5 mm rain Feels 36° Wind ~13 km/h
Rain Cloudy Partly Cloudy Rain
00:00 19° 0.7mm
02:00 19° 0.7mm
04:00 19° 2.3mm
06:00 20° 0.2mm
08:00 21° 0.2mm
10:00 23°
12:00 27°
14:00 31°
16:00 32°
18:00 27° 3.4mm
20:00 18° 3.4mm
22:00 18° 0.9mm
☁️ SaturdaySeptember 5th Avg 20° Low 18° at 01:00 High 21° at 17:00 Wind ~9 km/h
Cloudy
00:00 19°
02:00 19°
04:00 19°
06:00 19°
08:00 19°
10:00 20°
12:00 20°
14:00 21°
16:00 21°
18:00 21°
20:00 20°
22:00 20°
☁️ SundaySeptember 6th Avg 18° Low 17° at 21:00 High 21° at 11:00 Wind ~13 km/h
Cloudy
00:00 20°
02:00 19°
04:00 18°
06:00 18°
08:00 18°
10:00 20°
12:00 20°
14:00 17°
16:00 18°
18:00 18°
20:00 17°
22:00 17°
🌦️ MondaySeptember 7th Avg 18° Low 17° at 04:00 High 20° at 14:00 0.6 mm rain Wind ~13 km/h
Cloudy Rain Cloudy
00:00 18°
02:00 18°
04:00 17°
06:00 17°
08:00 18°
10:00 18°
12:00 19°
14:00 20°
16:00 19° 0.2mm
18:00 18°
20:00 18°
22:00 18°
🌧️ TuesdaySeptember 8th Avg 18° Low 17° at 03:00 High 18° at 17:00 7.2 mm rain Feels 20° Wind ~13 km/h
Rain Cloudy Rain
00:00 18° 0.4mm
02:00 17° 0.4mm
04:00 17° 1mm
06:00 17° 0.2mm
08:00 17° 0.2mm
10:00 18° 0.1mm
12:00 18° 0.3mm
14:00 18° 0.3mm
16:00 18°
18:00 18°
20:00 18°
22:00 18° 0.4mm

Sun

☀️ Sunrise 06:28 · Sunset 19:52

13h 24m of daylight · America/New_York

Air quality

PM2.5 5.9 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Tools for Grantham

Common questions about Grantham weather

Will it rain in Grantham today?

No rain is in the forecast for Grantham today.

What is the temperature in Grantham right now?

It is 20° in Grantham right now. Today runs between a low of 16° and a high of 25°.

What time is sunrise and sunset in Grantham?

The sun rises at 06:28 and sets at 19:52 local time in Grantham today, giving 13h 24m of daylight.

What is the air quality in Grantham?

PM2.5 in Grantham is currently 5.9 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Grantham forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Grantham best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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