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Winter Weather Advisory - Merrimack (New Hampshire) In Effect ... [Click here for more]

Regional Radar Regional Visible Satellite
Radar/Satellite images courtesy of Weather Underground.
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METRIC | IMPERIAL
Updated: 27-Feb-2021 @ 4:55am  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 0.2°F than last hour.

18.2°F

Wind Chill:  18.2°F
---
High Today
24.4°F
12:00 AM		 Low Today
17.8°F
4:35 AM
Normal High
38.0°F
 Normal Low
17.0°F
Rec* High
68.0°F
1880		 Rec* Low
-16.0°F
2015
* *
<!-- fixupCondition in='Night time/Dry/Clear skies ' out='Night time, Dry, Clear skies' ocnt='3' --><!-- vals split on slash --> Night time, Dry, Clear skies Night time, Dry, Clear skies

Calm Wind:  ESE
0.0
Gusting to:
 0.0 mph
Current Snow Snow3:
0.00 in
Fire Weather Index: MINIMAL Current FWI:4
Fire Danger:
0.5 of 232
Overnight

Mostly Cloudy
Mostly Cloudy
Lo ≈21°F		 Saturday

Rain and Snow
Rain and Snow
Hi ≈40°F		 Saturday
Night
Chance rain
Chance rain
Lo ≈31°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: No Change 16.5°F
Last Hour: No Change0°F
High 12:00 AM: 20.0°F
Low 4:36 AM: 15.6°F
Record High: 82.8°F on
3-Jul-2018
Record Low: -79.1°F on
6--2014
Wetbulb: 17.8°F
Melt Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.33 in
Feb Rain: 0.73 in
Feb to Date
  Avg:10 		0.00 in
Feb to Date
  Diff from Avg:10 		Over 0.73 in for the month 0.73 in
Feb Avg: 2.04 in
Diff from Avg: Under 1.31 in for the month 1.31 in
Season:1 2.15 in
YTD
  Avg:11 		0.00 in
YTD
  Diff from Avg:11 		Over 2.15 in for the year 2.15 in
Last Rain
Time/Date: 		24-Feb-2021
at 7:59 AM
24 rain days in 2021
10 days in February
3 days since last rain
Current: ESE  0.0 mph
1Hr Average: Calm
Wind Run: 0.04 miles
Wind Gust
Current: 0.0 mph mph
Today: 2.3 mph12:15 AM
Month: 35.0 mph 25-Feb
Year: 38.0 mph 24-Jan
Record Gust: 101.2 mph
30-Nov-2008
Sunrise:  6:24 am
Sunset:  5:32 pm
Sunlight:
11 hrs 8 min
of Sunlight Today
 graph 46.4% 53.6%
Which is
2 min 53 sec Longer
Than Yesterday
 
Morning Crescent, 15 days, 14 hours, 57 minutes in cycle
9%
Illuminated
Humidity Barometer
Current: Increased 1% since last hour.93%
Last Hour: Increased 1% since last hour.1%
High 4:50 AM: 93%
Low 12:00 AM: 83%
Record High: 100%
24-May-2005
Record Low: 0%
10-Feb-2007
Current: Rising 0.002 inHg/hr 30.413 inHg
Last Hour: Steady
High 1:14 AM: 30.464 in.
Low 4:04 AM: 30.407 in.
Record High: 30.877 inHg
21-Mar-2007
Record Low: 28.092 inHg
23-Jul-2011
Heating Degree Days Snow3 Wind Chill Air
Data Not
Available
Today: 8.0
Feb: 1038.7
2021 to Date: 2204.8
Cooling Degree Days
2021 to Date: 0.0
Today: 0.00 in
Yesterday: 0.00 in
Feb Snow: Over 1.555 in for the month 22.50 in
Feb Avg: 20.94 in
Diff from Avg: 1.56 in
Season Total:2 53.50 in
Snow Depth: 0.00 in
7 snow days in February
13 snow days this season.2
First Snow of Season:
--
Average 1st Snow:
Current: 18.2°F
Low 4:35 AM: 17.8°F
Yesterday: 10.5°F
Record: -36.2°F
14-Feb-2016
Data Not
Available

Data Not Available
Density:
1.35 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   2.2 @ 10:47 AM
Feb-27

 Feb-28

 Mar-01
High Yest:   702.0 @ 12:11 PM
Sun Hours Today:
00:00
   This Month: 77:12 Hrs
Rise: 6:24 am  Set: 5:32 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Current: Early Morning
YTD Avg Temp: 26.4°F
Sunrise: 6:24 am
Sunset: 5:32 pm
Moonrise: 6:07 pm
Moonset: 6:58 am
Full Moon: February--2021
New Moon: 10:22 UTC
March--2021
Updated at Midnight
Current ET: 0.00 in
7-Days Rain: 0.33 in
7-Days ET: 0.31 in
7-Day: 0.023 in water in excess of what evaporated in last 7 days.0.023 in
February: 0.03 in water in excess of what evaporated this month.0.03 in
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HIGHS: LOWS:
98.6°F
3-Jul-2018		 -19.8°F
16-Jan-2009
Daytime Records
  96.3°F
10-Jun-2008		   0.1°F
24-Jan-2011
Nitetime Records
  87.1°F
20-Jul-2013		   -9.2°F
14-Feb-2016
ICN:1 | S3C2:1| Ajax 3.xx
ISS:Ok | CON:4.6 | RCP:100%
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured usually around 6AM and 9PM.   4 Updated at Noon Eastern Time.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index is updated hourly between the hours of 6AM and Midnight.   10 Historical average only to day 27 of just the month of February for this station since 2006.   11 Historical average rain this season to day 27 of February for this station since 2006.
 NWS Weather Forecast  -   Outlook Overnight & Saturday
Overnight

Mostly Cloudy
Mostly Cloudy
Lo ≈21°F 		NWS forecast: Mostly cloudy. Low around 21, with temperatures rising to around 29 overnight. South wind around 5 mph.
Local station forecast: Partly cloudy. Not as cold with lows in the mid 20s. Light and variable winds. 		Saturday

Rain and Snow
Rain and Snow
Hi ≈40°F 		NWS forecast: Snow before noon, then rain and snow between noon and 1pm, then patchy fog and rain and snow. Cloudy, with a high near 40. South wind 5 to 10 mph. Chance of precipitation is 100%. New snow accumulation of around one inch possible.
 NWS Short Term Weather Forecast
Saturday
Night
Chance rain
Chance rain
Lo ≈31°F		 Sunday

Chance rain
Chance rain
Hi ≈44°F		 Sunday
Night
Rain and Snow
Rain and Snow
Lo ≈34°F		 Monday

Partly Sunny
Partly Sunny
Hi ≈47°F		 Monday
Night
Snow showers
Snow showers
Lo ≈11°F		 Tuesday

Snow showers
Snow showers
Hi ≈26°F		 Tuesday
Night
Mostly Clear
Mostly Clear
Lo ≈17°F
Animated icons courtesy of www.meteotreviglio.com
Precipitation average-to-date script courtesy of Murry Conarroe
Version 6.92 - 09-Feb-2014 - Script Mods by: BurnsvilleWeatherLIVE.com