| Latest RWIS Atmospheric Data as of Sun Apr 19 09:05 AM 2026 |
| O B S |
Location | Elev. (feet) |
Date | Time | Temp (ºF) |
Dew Point (ºF) |
Rel Hum (%) |
Wind Dir |
Wind Speed (mph) |
Peak Wind (mph) |
Sea-Level Pressure (in. Hg) |
Precip and Intensity |
Precip Rate (in/hr) |
Visibility (mi) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Ashland I-93 | 600 | Sun 19-Apr-2026 | 08:54AM EDT | 43.3 | 43.0 | 98 | SSW | 0.7 | 2.9 | 29.11 | LGT Precip | 0.000 | 1.2 |
| Bow | 351 | Sun 19-Apr-2026 | 08:55AM EDT | ||||||||||
| Canterbury I-93 | 585 | Sun 19-Apr-2026 | 08:55AM EDT | 43.3 | 43.0 | 99 | SSE | 2.5 | 4.5 | 29.16 | 1.2 | ||
| Derry I-93 | 247 | Sun 19-Apr-2026 | 08:54AM EDT | 45.3 | 45.5 | 100 | SE | 0.9 | 4.5 | 29.48 | MOD Precip | 0.400 | 0.9 |
| Echo Lake | 1856 | Sun 19-Apr-2026 | 08:54AM EDT | 45.3 | 43.9 | 94 | 30.90 | ||||||
| Epping Rt.101 | 141 | Sun 19-Apr-2026 | 08:54AM EDT | 43.9 | 45.9 | ||||||||
| Hampton Rt 101 | Sun 19-Apr-2026 | 08:55AM EDT | 45.3 | 45.3 | SE | 1.1 | 3.4 | 29.76 | None | 0.000 | 1.2 | ||
| I-89 SB MM 31.4 Sutton/New London | Sun 19-Apr-2026 | 08:55AM EDT | 42.1 | 41.9 | 100 | W | 1.3 | 3.8 | 28.53 | LGT Precip | 0.700 | 0.9 | |
| LaFayette | 1768 | Sun 19-Apr-2026 | 08:54AM EDT | 42.1 | 43.0 | WSW | 2.0 | 4.7 | 30.95 | LGT Precip | 0.000 | 1.2 | |
| Lincoln Exit 33 | 916 | Sun 19-Apr-2026 | 08:54AM EDT | 43.5 | 44.8 | SSE | 1.1 | 2.0 | LGT Precip | 0.400 | 1.2 | ||
| Littleton I-93 | 869 | Sun 19-Apr-2026 | 08:54AM EDT | 45.9 | 45.7 | 99 | NE | 1.3 | 2.2 | 28.83 | LGT Precip | 0.000 | 1.2 |
| Lost River Rt. 112 | 1822 | Sun 19-Apr-2026 | 08:54AM EDT | 41.2 | 48.9 | ESE | 1.8 | 6.5 | 27.85 | LGT Precip | 0.000 | 0.2 | |
| Manchester I-293 | 244 | Sun 19-Apr-2026 | 08:55AM EDT | 45.3 | 45.0 | 99 | SE | 1.8 | 4.0 | 29.48 | LGT Precip | 0.400 | 1.2 |
| Nashua FEE Exit 2 | 287 | Sun 19-Apr-2026 | 08:54AM EDT | 45.7 | 45.3 | 99 | |||||||
| New Ipswich Rt 124 | 1075 | Sun 19-Apr-2026 | 08:54AM EDT | 44.2 | 45.7 | S | 1.1 | 2.2 | LGT Precip | 0.400 | 1.0 | ||
| Newington RT 16 | 30 | Sun 19-Apr-2026 | 08:54AM EDT | 45.0 | 43.9 | 96 | SE | 2.2 | 4.5 | 29.88 | None | 0.000 | 2.9 |
| Portsmouth I-95 | Sun 19-Apr-2026 | 08:55AM EDT | 44.8 | 44.4 | 99 | SSE | 3.4 | 5.6 | 29.71 | LGT Precip | 0.000 | 0.8 | |
| Roxbury-Sullivan Rt 9 | Sun 19-Apr-2026 | 08:55AM EDT | 47.1 | 47.1 | E | 0.9 | 2.2 | 28.69 | LGT Precip | 0.000 | 1.2 | ||
| Rt. 4 WB Northwood | Sun 19-Apr-2026 | 08:55AM EDT | 42.6 | 42.4 | 99 | SE | 2.5 | 4.0 | 29.12 | None | 0.000 | 1.2 | |
| Rt. 16 SB Exit 17 Milton | Sun 19-Apr-2026 | 08:55AM EDT | 42.8 | 42.8 | 100 | SE | 1.1 | 3.8 | 29.30 | LGT Precip | 0.000 | 1.2 | |
| Rt. 16 SB MM 32 Milton | Sun 19-Apr-2026 | 08:55AM EDT | 42.4 | 42.4 | 100 | NW | 0.4 | 1.6 | 29.17 | LGT Precip | 0.000 | 1.2 | |
| Rt.16 SB Rochester | Sun 19-Apr-2026 | 02:35AM EDT | 42.1 | 42.1 | 100 | SSE | 2.5 | 3.6 | 29.67 | None | 0.000 | 1.2 | |
| Rt.16 SB Wakefield | Sun 19-Apr-2026 | 08:55AM EDT | 41.4 | 41.4 | SW | 0.7 | 2.5 | 28.78 | LGT Precip | 0.400 | 1.2 | ||
| Rt. 101 WB Exeter MM 128.4 | Sun 19-Apr-2026 | 08:55AM EDT | 45.0 | 45.0 | 100 | ENE | 2.0 | 4.0 | 29.65 | None | 0.000 | 1.2 | |
| Rt. 101 WB Peterborough | Sun 19-Apr-2026 | 08:55AM EDT | 44.8 | 44.8 | 100 | N | 1.1 | 2.7 | 28.26 | LGT Precip | 0.400 | 1.2 | |
| Rt.106 Loudon | Sun 19-Apr-2026 | 08:55AM EDT | 43.5 | 43.2 | 99 | SSW | 0.9 | 2.5 | 29.18 | LGT Precip | 0.400 | 1.2 | |
| Rt. 115 Jefferson | Sun 19-Apr-2026 | 08:55AM EDT | 46.6 | 46.6 | N | 1.8 | 2.9 | 28.16 | LGT Precip | 0.000 | 1.2 | ||
| Rt 16 NB Ossipee | Sun 19-Apr-2026 | 08:55AM EDT | 43.0 | 43.0 | 100 | SE | 0.7 | 2.2 | 29.30 | LGT Precip | 0.700 | 1.2 | |
| Salem I-93 | 85 | Sun 19-Apr-2026 | 08:54AM EDT | 46.0 | 46.8 | S | 3.4 | 5.1 | 29.59 | None | 0.000 | 1.2 | |
| Sanbornton I-93 | 720 | Sun 19-Apr-2026 | 08:55AM EDT | 43.0 | 43.0 | 100 | WSW | 0.4 | 2.9 | 28.98 | LGT Precip | 1.100 | 1.2 |
| Springfield I-89 | 1402 | Sun 19-Apr-2026 | 08:54AM EDT | 41.9 | 42.8 | NNW | 6.9 | 19.5 | 29.68 | LGT Precip | 0.000 | 1.2 | |
| Warner I-89 | 413 | Sun 19-Apr-2026 | 08:55AM EDT | 44.2 | 44.1 | 100 | NE | 2.7 | 3.8 | 29.25 | LGT Precip | 1.800 | 1.2 |
| Westmoreland Rt. 9 | 1145 | Sun 19-Apr-2026 | 08:54AM EDT | 46.9 | 47.1 | 100 | SW | 4.3 | 7.8 | 26.64 | None | 0.000 | 1.2 |
| Woodstock I-93 | 680 | Sun 19-Apr-2026 | 08:55AM EDT | 44.6 | 44.4 | 100 | WNW | 1.1 | 2.7 | 29.03 | None | 0.000 | 1.2 |
- This page displays the latest atmospheric data received from the NHDOT Environmental Sensor Stations (ESS) located on various NH highways and NHDOT facilities that provide such data.
- Clicking the
icon to the left of a site, will display all of the observations for that site for the current day.
- The Lafayette site is located near the campground in Franconia Notch. The Echo Lake site is located just north of the Franconia Notch.
- At most sites, the highest reported visibility will be 1.1 miles. Exceptions are as follows: 1.2 miles for Echo Lake, LaFayette, Littleton and New Ipswich; Salem and Ashland have newer sensors and can report visibility as high as 7.1 miles; and Dover can report visibilities up to 12.4 miles.
- Precipitation can be listed as "None" for no precipitation, "Recent" if it just recently ended, or "Now" if it just started.
- When precipitation has been detected and an intensity has been determined, precipitation intensities are listed as "LGT" for light or "MOD" for moderate or "HVY" for heavy.
- The entry, "Precip", following a reported intensity usually means rain or drizzle or an indeterminate type of precipitation.
- When snow/ice has been identified by the sensor, the precipitation type following the intensity will be listed as "Snow".
- Missing or not reported data are left as blank entries.
- This page will automatically refresh every 5 minutes.