Weather Forecast for Jamestown

Virginia, United States of America

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Sunny

Current Weather - Jamestown: 5°C

Virginia, United States of America

Sunny

Feels like 3°C

Wind

10 km/h NNW

Humidity

63%

Pressure

1028 mb

UV Index

0

Visibility

16 km

Sunny

Sunny

Tuesday, April 21, 2026

High

20°C

Low

4°C

Rain Chance

0%

Hourly Forecast

Sunny 16°C
13:00
Sunny 18°C
14:00
Sunny 18°C
15:00
Sunny 19°C
16:00
Sunny 18°C
17:00
Sunny 16°C
18:00
Sunny 14°C
19:00
Clear 12°C
20:00
Clear 11°C
21:00
Clear 10°C
22:00
Clear 10°C
23:00
Apr 22

Day Statistics

Maximum Wind

18 km/h

Humidity

38%

Precipitation

0 mm

UV Index

7

Visibility

10 km

Rain Chance

0%

Snow Chance

0%

Sun & Moon

Sunrise

06:24 AM

Sunset

07:48 PM

Moonrise

09:23 AM

Moonset

12:09 AM

Moon Phase

Waxing Crescent

Moon Illumination

17%

Air Quality

PM2.5

4.7

μg/m³

PM10

5.2

μg/m³

NO₂

4.9

μg/m³

O₃

95.7

μg/m³

SO₂

4.4

μg/m³

CO

162.3

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

2.8

Diffuse Radiation

1.11

DNI

2.14

GTI

1.96

Weather Alerts

Frost Advisory issued April 20 at 9:16PM EDT until April 21 at 9:00AM EDT by NWS Wakefield VA

Hertford; Gates; Pasquotank; Camden; Bertie; Chowan; Perquimans; Northumberland; Lancaster; Gloucester; Middlesex; Surry; James City; Chesapeake; Accomack; York; Isle of Wight; Suffolk Apr 20, 09:16 PM - Apr 21, 09:00 AM
Severity: Minor Urgency: Expected

* WHAT...Temperatures as low as 33 will result in frost formation. Best chances for frost are away from the immediate coast. * WHERE...Portions of northeast North Carolina and eastern and southeast Virginia. * WHEN...From 2 AM to 9 AM EDT Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.

Event: Frost Advisory Certainty: Likely Category: Met

Freeze Warning issued April 20 at 9:16PM EDT until April 21 at 9:00AM EDT by NWS Wakefield VA

Dorchester; Wicomico; Somerset; Inland Worcester; Northampton; Fluvanna; Prince Edward; Cumberland; Goochland; Caroline; Mecklenburg; Lunenburg; Nottoway; Amelia; Powhatan; Westmoreland; Richmond; Brunswick; Dinwiddie; Prince George; Charles City; New Kent; Greensville; Sussex; Southampton; Western Louisa; Eastern Louisa; Western Hanover; Eastern Hanover; Western Chesterfield; Eastern Chesterfield (Including Col. Heights); Western Henrico (Including the City of Richmond); Eastern Henrico; Western King William; Eastern King William; Western King and Queen; Eastern King and Queen; Western Essex; Eastern Essex Apr 20, 09:16 PM - Apr 21, 09:00 AM
Severity: Moderate Urgency: Expected

* WHAT...Sub-freezing temperatures expected. * WHERE...Portions of southeast Maryland, northeast North Carolina, and central, east central, north central, south central, and southeast Virginia. * WHEN...From 2 AM to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.

Event: Freeze Warning Certainty: Likely Category: Met